Owners/Mass General Brigham

Mass General Brigham

Example: fully unlocked, as a paid account sees it

Health system: 13 hospitals, 136 outpatient sites, ERs and clinics, 35 urgent care centers.

Last confirmed 2026-10-30 · Sources: CMS Medicare enrollment and hospital ownership (PECOS), Provider of Services, the company's own locations, NPPES

Hospitals

Outpatient sites, ERs and clinics

136

Urgent care centers

Hospital beds

3,362

States

Who it is

as of 2026-10-24

Legal name: Mass General Brigham Incorporated · ProPublica Nonprofit Explorer (IRS)
Tax status: nonprofit · ProPublica Nonprofit Explorer (IRS)
Headquarters: MA
EIN: 04-3230035
Website: massgeneralbrigham.org

Portfolio map

157 mapped

Hospital
Hospital outpatient site
Urgent care
Size: beds

Mass General Brigham
Massachusetts Eye and Ear Infirmary
Mass General Brigham
Mass General Brigham Urgent Care LLC
Mass General Brigham
Mass General Brigham Community Physicians on Demand
Other systems and operators

Circles are hospitals, sized by beds; diamonds are hospital outpatient sites, triangles urgent care.

Hospitals

3,362 beds · 150,553 discharges · $7.1B net patient revenue

Hospital	City	Beds	Discharges	Patient-care margin	Medicare days	Medicaid days
Massachusetts General Hospital	Boston, MA	997	46,158	-45.6%	33%	10%
Brigham and Women's Hospital	Boston, MA	818	41,488	–	29%	9%
McLean Hospital	Belmont, MA	309	6,322	-56.2%	14%	7%
North Shore Medical Center -	Salem, MA	281	17,213	-12.3%	36%	9%
Newton-Wellesley Hospital	Newton, MA	240	17,496	-2.2%	38%	3%
Spaulding Hospital for Continuing Med Care-Camb	Cambridge, MA	180	875	-55.8%	32%	–
Brigham and Women's Faulkner Hospital	Jamaica Plain, MA	147	8,327	-0.6%	41%	4%
Spaulding Rehabilitation Hospital	Charlestown, MA	132	2,783	-28.1%	33%	5%
The Cooley Dickinson Hospital	Northampton, MA	118	5,278	3.9%	37%	7%
Spaulding Rehabilitation Hospital - Cape Cod	East Sandwich, MA	60	1,233	-13.3%	62%	2%
Massachusetts Eye and Ear Infirmary	Boston, MA	41	1,555	-38.7%	25%	9%
Martha's Vineyard Hospital	Oak Bluffs, MA	25	1,303	0.3%	60%	6%
Nantucket Cottage Hospital	Nantucket, MA	14	522	–	52%	10%

Medicare cost reports, 2024. Pooled across the system: patient-care margin -32.7%, Medicare 32% and Medicaid 8% of inpatient days. Patient-care margin leaves out research grants and philanthropy, so academic medical centers often show negatives while their net income is positive.

Market position

largest hospital owner in 5 of 7 counties

County	Its hospitals	Its beds	All hospital beds	Share	Rank
Suffolk County, MA	5	2,135	5,661	38%	1 of 12
Middlesex County, MA	3	729	2,754	26%	1 of 10
Essex County, MA	1	281	1,317	21%	3 of 5
Hampshire County, MA	1	118	118	100%	1 of 2
Barnstable County, MA	1	60	396	15%	2 of 2
Dukes County, MA	1	25	25	100%	1 of 1
Nantucket County, MA	1	14	14	100%	1 of 1

Share of hospital beds in each county where Mass General Brigham runs a hospital; rank is among owners confirmed in public records.

What it runs

Hospital outpatient site	118
Urgent care center	35
Short-term acute hospital	8
Physician clinic	8
Ambulatory surgery center	5
Imaging center	3
Outpatient rehabilitation	2
Rehabilitation hospital	2
Critical access hospital	1
Psychiatric hospital	1
Long-term care hospital	1

Evidence behind each link

CMS Hospital All Owners	69
CMS record	40
AHRQ Compendium of U.S. Health Systems (hospital linkage)	34
Company website	25
NPPES NPI Registry	13
IRS Form 990	2
CMS Hospital Enrollments and All Owners (PECOS): hospital ownership graph	1

Every facility here is tied to Mass General Brigham by at least one public source, dated and linked on its own page.

Mass General Brigham: owner, operators and facilities

Mass General Brigham184 facilities

Mass General Brigham

American Current Care Of Massachusetts PCGreenfield

Brigham and Women's Advanced Primary Care Associates South HuntingtonJamaica Plain

Brigham and Women's Faulkner Addiction Recovery ProgramJamaica Plain

Brigham and Women's Faulkner Community PhysiciansHyde Park

Brigham and Women's Faulkner Community PhysiciansWest Roxbury

BRIGHAM AND WOMEN'S FAULKNER HOSPITALJAMAICA PLAIN

BRIGHAM AND WOMEN'S HOSPITALBOSTON

BRIGHAM AND WOMEN'S HOSPITAL - BostonBoston

BRIGHAM AND WOMEN'S HOSPITAL - Boston (221 Longwood Ave)Boston

BRIGHAM AND WOMEN'S HOSPITAL - Boston (45 Francis St)Boston

BRIGHAM AND WOMEN'S HOSPITAL - BrooklineBrookline

BRIGHAM AND WOMEN'S HOSPITAL - CambridgeCambridge

BRIGHAM AND WOMEN'S HOSPITAL - Chestnut Hill (850 Boylston St)Chestnut Hill

BRIGHAM AND WOMEN'S HOSPITAL - Jamaica PlainJamaica Plain

BRIGHAM AND WOMEN'S HOSPITAL - WaylandWayland

Brigham and Women's Infusion CenterBoston

Brigham and Women's Lung CenterBoston

Brigham and Women's Plastic Surgery Clinic at Emerson HospitalConcord

Brigham and Women's Primary Care Associates of BrooklineBrookline

Brigham and Women's Primary Care Associates of LongwoodBoston

Brigham and Women's Primary Care Associates of NorwoodNorwood

Brigham and Women's Primary Care Clinic at the Massachusetts Mental Health CenterBoston

Brigham and Women's Psychiatry ClinicNewton

Brigham and Women's Urogynecology Group at Newton-Wellesley HospitalNewton

Brigham And Womens Mri West BridgewaterWest Bridgewater

Brigham And Womens Radiology Coolidge Corner ImagingBrookline

Brigham Obstetrics and Gynecology GroupBoston

Brookside Community Health CenterJamaica Plain

Cdmg Urgent CareNorthampton

Charles River Diagnostic ImagingFramingham

Charlestown Community Health CenterCharlestown

Chelsea Community Health Center Urgent CareChelsea

COOLEY DICKINSON HOSPITAL INC, THENORTHAMPTON

Cooley Dickinson Hospital, Atwood Health Center, Blood DrawNorthampton

Cooley Dickinson Hospital, Blood Draw (Belchertown)Belchertown

Cooley Dickinson Hospital, Blood Draw (Florence)Florence

Cooley Dickinson Hospital, Blood Draw (South Deerfield)South Deerfield

Cooley Dickinson Physical Therapy ClinicWorthington

Cooley Dickinson Rehabilitation ServicesNorthampton

Cooley Dickinson Wellness and Sports Performance CenterWest Hatfield

Ingalls Elementary SbhcLynn

Lynn Classical High School SbhcLynn

Lynn Community Health CenterLynn

Lynn Community Health Center School Based ProgramLynn

Lynn Community Health Center School Based Program At Harrington ElementaryLynn

Lynn English High School SbhcLynn

Lynn Vocational Technical High School SbhcLynn

Martha's Vineyard Hospital at Indian Hill RoadVineyard Haven

MARTHA'S VINEYARD HOSPITAL INCOAK BLUFFS

Mass General Brigham (South Deerfield, 21B Elm St)South Deerfield

Mass General Brigham Blood Draw (Saugus)Saugus

Mass General Brigham Express Care (Amherst)Amherst

Mass General Brigham Express Care (Andover)Andover

Mass General Brigham Express Care (Danvers)Danvers

Mass General Brigham Express Care (Natick)Natick

Mass General Brigham Express Care (Woburn)Woburn

Mass General Brigham for Children at Salem HospitalSalem

Mass General Brigham Heart and Vascular Institute at Brigham and Women's HospitalBoston

Mass General Brigham Urgent Care LLCWestwood

Mass General Broadway Primary Care at RevereRevere

Mass General Waltham Outpatient Surgery CenterWaltham

Massachusetts General Anticoagulation Management ServiceBoston

Massachusetts General Back Bay Healthcare CenterBoston

Massachusetts General Beacon Hill Primary Care ClinicBoston

Massachusetts General Benson-Henry Institute for Mind Body MedicineBoston

Massachusetts General Brain and Body ProgramBoston

Massachusetts General clinics at 102 Endicott Street, DanversDanvers

Massachusetts General clinics at 52 Second Avenue, WalthamWaltham

Massachusetts General clinics at Chelsea Community Health Center (100 Everett Ave)Chelsea

Massachusetts General Everett Family Care ClinicEverett

Massachusetts General Fertility CenterBoston

MASSACHUSETTS GENERAL HOSPITALBOSTON

MASSACHUSETTS GENERAL HOSPITAL - ArlingtonArlington

MASSACHUSETTS GENERAL HOSPITAL - AttleboroAttleboro

MASSACHUSETTS GENERAL HOSPITAL - Boston (15 Parkman St, Wang building)Boston

MASSACHUSETTS GENERAL HOSPITAL - Boston (175 Cambridge St)Boston

MASSACHUSETTS GENERAL HOSPITAL - BrocktonBrockton

MASSACHUSETTS GENERAL HOSPITAL - North AndoverNorth Andover

MASSACHUSETTS GENERAL HOSPITAL - RandolphRandolph

MASSACHUSETTS GENERAL HOSPITAL - SomervilleSomerville

MASSACHUSETTS GENERAL HOSPITAL - South BostonSouth Boston

Massachusetts General Hospital, Blood Draw (North End)Boston

Massachusetts General Medical GroupBoston

Massachusetts General Pain Management CenterWaltham

Massachusetts General Physical Medicine and Rehabilitation ClinicFoxborough

Massachusetts General Primary Care ClinicBoston

Massachusetts General Psychiatry at Bowdoin SquareBoston

Massachusetts General Pulmonary ClinicBoston

Massachusetts General Sumner M. Redstone Burn CenterBoston

Massachusetts General Thoracic Surgery ClinicBoston

Massachusetts General Urology ClinicBoston

McLean Addiction Treatment Center at FernsidePrinceton

McLean Child and Adolescent Outpatient Clinic (MAMP)Cambridge

MCLEAN HOSPITAL CORPORATIONBELMONT

McLean SouthEastMiddleboro

Merrimack Valley Endoscopy CenterHaverhill

NANTUCKET COTTAGE HOSPITALNANTUCKET

Nantucket Cottage Hospital Urgent Access ClinicNantucket

Nantucket Cottage PharmacyNantucket

Newton-Wellesley - McLean Psychiatry Services at Bridge by EpochLexington

NEWTON-WELLESLEY HOSPITALNEWTON

NEWTON-WELLESLEY HOSPITAL - WestfordWestford

Newton-Wellesley Hospital, Blood Draw (Natick)Natick

Newton-Wellesley Hospital, Blood Draw (Walpole)Walpole

Newton-Wellesley Hospital, Blood Draw (Waltham)Waltham

Newton-Wellesley Hospital, Blood Draw (Wellesley)Wellesley

Newton-Wellesley Kaplan Joint CenterNewton

Newton-Wellesley McLean Psychiatric Services at AdelaideNewton Centre

Newton-Wellesley Outpatient Surgery CenterWellesley

Newton-Wellesley Sleep CenterNewton

Newton-Wellesley Sports Physical Therapy Clinic at the Wells Ave YMCANewton

NORTH SHORE MEDICAL CENTER -SALEM

Outpatient Surgery Center At Mass General WalthamWaltham

Revere Community Health CenterRevere

Salem Hospital Emergency DepartmentSalem

Salem Hospital Mental Health Outpatient ServicesSalem

Salem Hospital Physical Medicine and Rehabilitation ClinicSalem

Salem Hospital, Blood Draw (Danvers, 1 Hutchinson Dr)Danvers

Salem Hospital, Blood Draw (Danvers, 104 Endicott St)Danvers

Salem Hospital, Blood Draw (Marblehead)Marblehead

South Shore Endoscopy CenterBraintree

Southern Jamaica Plain Community Health CenterJamaica Plain

Spaulding Eileen M Ward Outpatient Center For Children SandwichForestdale

Spaulding Eileen M Ward Outpatient Center For Children SandwichSandwich

SPAULDING HOSPITAL FOR CONTINUING MED CARE-CAMBCambridge

SPAULDING HOSPITAL FOR CONTINUING MED CARE-CAMB - BostonBoston

Spaulding Rehabilitation Center for Children in LexingtonLexington

Spaulding Rehabilitation Eileen M. Ward Outpatient Center for Children (Sandwich)Sandwich

SPAULDING REHABILITATION HOSPITALCharlestown

SPAULDING REHABILITATION HOSPITAL - CAPE CODEast Sandwich

Spaulding Rehabilitation Hospital (Charlestown)Charlestown

Spaulding Rehabilitation Outpatient Center (Brighton)Brighton

Spaulding Rehabilitation Outpatient Center (Cambridge)Cambridge

Spaulding Rehabilitation Outpatient Center (Cape Ann)Gloucester

Spaulding Rehabilitation Outpatient Center (Framingham)Framingham

Spaulding Rehabilitation Outpatient Center (Hyannis)Hyannis

Spaulding Rehabilitation Outpatient Center (Lynn)Lynn

Spaulding Rehabilitation Outpatient Center (Medford)Medford

Spaulding Rehabilitation Outpatient Center (Orleans)Orleans

Spaulding Rehabilitation Outpatient Center (Peabody)Peabody

Spaulding Rehabilitation Outpatient Center (Plymouth)Plymouth

Spaulding Rehabilitation Outpatient Center (Salem)Salem

Spaulding Rehabilitation Outpatient Center (Wellesley)Wellesley

Spaulding Rehabilitation Outpatient Center at Emilson YMCA (Hanover)Hanover

Spaulding Rehabilitation Outpatient Center at South Shore YMCA (Quincy)Quincy

Spaulding Rehabilitation Outpatient Center BraintreeBraintree

Spaulding Rehabilitation Outpatient Center MaldenMalden

Spaulding Rehabilitation Outpatient Center Marblehead Jewish Community CenterMarblehead

Spaulding Rehabilitation Physical Medicine and Rehabilitation ClinicNatick

Spaulding Rehabilitation Physical Therapy Clinic (Marblehead)Marblehead

Sports Medicine and Physical Therapy Associates from Nantucket Cottage HospitalNantucket

The Gunderson Residence Program at McLean HospitalCambridge

Wentworth-Douglass Express Care (Lee)Lee

Mass General Brigham Urgent Care LLC

Brigham and Women's Family Care AssociatesBrookline

Mass General Brigham (Lynn,480 Lynnfield St)Lynn

Mass General Brigham Urgent Care LlcWoburn

Mass General Brigham Urgent Care LlcNewton

Mass General Brigham Urgent Care LLCWatertown

Mass General Brigham Urgent Care LLCMedford

Mass General Brigham Urgent Care LLCCambridge

Mass General Brigham Urgent Care LLCNatick

Mass General Brigham Urgent Care LLCBurlington

Partners Urgent CareBoston

Vital Beauty Aesthetics And WellnessCanton

Mass General Brigham

Brigham and Women's Urgent Care in FoxboroughFoxborough

Mass General Brigham Express Care (Boston Common)Boston

Mass General Brigham Express Care (Brookline)Brookline

Mass General Brigham Express Care (Lawrence)Lawrence

Mass General Brigham Express Care (Lynn)Lynn

Mass General Brigham Express Care (Newton)Newton

Mass General Brigham Express Care (Pembroke)Pembroke

Mass General Brigham Express Care (South Weymouth)South Weymouth

Mass General Brigham Express Care (Southampton)Southampton

Mass General Brigham Express Care at Cooley Dickinson HospitalNorthampton

Wentworth-Douglass Express Care (Dover)Dover

Mass General Brigham

Wentworth Douglass HospitalPortsmouth

Wentworth Douglass HospitalDover

Wentworth Douglass HospitalSomersworth

Mass General Brigham

Merrimack Valley Endoscopy Center LLCHaverhill

Mass General Brigham at Wentworth Surgery CenterSomersworth

Mass General Brigham Community Physicians on Demand

Mass General Brigham Community Physicians On DemandLawrence

Massachusetts Eye and Ear Infirmary

MASSACHUSETTS EYE AND EAR INFIRMARYBOSTON

From CMS ownership and enrollment records.

Where Mass General Brigham's facilities are

Each block starts at the facility's location from CMS records.

Facilities

all 184

Name	City	Type
American Current Care Of Massachusetts PC	Greenfield, MA	Urgent care center
Brigham and Women's Advanced Primary Care Associates South Huntington	Jamaica Plain, MA	Hospital outpatient department
Brigham and Women's Family Care Associates	Brookline, MA	Hospital outpatient department
Brigham and Women's Faulkner Addiction Recovery Program	Jamaica Plain, MA	Hospital outpatient department
Brigham and Women's Faulkner Community Physicians	Hyde Park, MA	Hospital outpatient department
Brigham and Women's Faulkner Community Physicians	West Roxbury, MA	Hospital outpatient department
BRIGHAM AND WOMEN'S FAULKNER HOSPITAL	JAMAICA PLAIN, MA	Short-term acute hospital
BRIGHAM AND WOMEN'S HOSPITAL	BOSTON, MA	Short-term acute hospital
BRIGHAM AND WOMEN'S HOSPITAL - Boston	Boston, MA	Hospital outpatient department
BRIGHAM AND WOMEN'S HOSPITAL - Boston (221 Longwood Ave)	Boston, MA	Hospital outpatient department
BRIGHAM AND WOMEN'S HOSPITAL - Boston (45 Francis St)	Boston, MA	Hospital outpatient department
BRIGHAM AND WOMEN'S HOSPITAL - Brookline	Brookline, MA	Hospital outpatient department
BRIGHAM AND WOMEN'S HOSPITAL - Cambridge	Cambridge, MA	Hospital outpatient department
BRIGHAM AND WOMEN'S HOSPITAL - Chestnut Hill (850 Boylston St)	Chestnut Hill, MA	Hospital outpatient department
BRIGHAM AND WOMEN'S HOSPITAL - Jamaica Plain	Jamaica Plain, MA	Hospital outpatient department
BRIGHAM AND WOMEN'S HOSPITAL - Wayland	Wayland, MA	Hospital outpatient department
Brigham and Women's Infusion Center	Boston, MA	Hospital outpatient department
Brigham and Women's Lung Center	Boston, MA	Hospital outpatient department
Brigham and Women's Plastic Surgery Clinic at Emerson Hospital	Concord, MA	Hospital outpatient department
Brigham and Women's Primary Care Associates of Brookline	Brookline, MA	Hospital outpatient department
Brigham and Women's Primary Care Associates of Longwood	Boston, MA	Hospital outpatient department
Brigham and Women's Primary Care Associates of Norwood	Norwood, MA	Hospital outpatient department
Brigham and Women's Primary Care Clinic at the Massachusetts Mental Health Center	Boston, MA	Hospital outpatient department
Brigham and Women's Psychiatry Clinic	Newton, MA	Hospital outpatient department
Brigham and Women's Urgent Care in Foxborough	Foxborough, MA	Urgent care center
Brigham and Women's Urogynecology Group at Newton-Wellesley Hospital	Newton, MA	Hospital outpatient department
Brigham And Womens Mri West Bridgewater	West Bridgewater, MA	Imaging center
Brigham And Womens Radiology Coolidge Corner Imaging	Brookline, MA	Imaging center
Brigham Obstetrics and Gynecology Group	Boston, MA	Hospital outpatient department
Brookside Community Health Center	Jamaica Plain, MA	Hospital outpatient department
Cdmg Urgent Care	Northampton, MA	Urgent care center
Charles River Diagnostic Imaging	Framingham, MA	Imaging center
Charlestown Community Health Center	Charlestown, MA	Hospital outpatient department
Chelsea Community Health Center Urgent Care	Chelsea, MA	Urgent care center
COOLEY DICKINSON HOSPITAL INC, THE	NORTHAMPTON, MA	Short-term acute hospital
Cooley Dickinson Hospital, Atwood Health Center, Blood Draw	Northampton, MA	Hospital outpatient department
Cooley Dickinson Hospital, Blood Draw (Belchertown)	Belchertown, MA	Hospital outpatient department
Cooley Dickinson Hospital, Blood Draw (Florence)	Florence, MA	Hospital outpatient department
Cooley Dickinson Hospital, Blood Draw (South Deerfield)	South Deerfield, MA	Hospital outpatient department
Cooley Dickinson Physical Therapy Clinic	Worthington, MA	Hospital outpatient department
Cooley Dickinson Rehabilitation Services	Northampton, MA	Hospital outpatient department
Cooley Dickinson Wellness and Sports Performance Center	West Hatfield, MA	Hospital outpatient department
Ingalls Elementary Sbhc	Lynn, MA	Physician clinic
Lynn Classical High School Sbhc	Lynn, MA	Physician clinic
Lynn Community Health Center	Lynn, MA	Physician clinic
Lynn Community Health Center	Lynn, MA	Physician clinic
Lynn Community Health Center School Based Program	Lynn, MA	Physician clinic
Lynn Community Health Center School Based Program At Harrington Elementary	Lynn, MA	Physician clinic
Lynn English High School Sbhc	Lynn, MA	Physician clinic
Lynn Vocational Technical High School Sbhc	Lynn, MA	Physician clinic
Martha's Vineyard Hospital at Indian Hill Road	Vineyard Haven, MA	Hospital outpatient department
MARTHA'S VINEYARD HOSPITAL INC	OAK BLUFFS, MA	Critical access hospital
Mass General Brigham (Lynn,480 Lynnfield St)	Lynn, MA	Hospital outpatient department
Mass General Brigham (South Deerfield, 21B Elm St)	South Deerfield, MA	Hospital outpatient department
Mass General Brigham Blood Draw (Saugus)	Saugus, MA	Hospital outpatient department
Mass General Brigham Community Physicians On Demand	Lawrence, MA	Urgent care center
Mass General Brigham Express Care (Amherst)	Amherst, MA	Urgent care center
Mass General Brigham Express Care (Andover)	Andover, MA	Urgent care center
Mass General Brigham Express Care (Boston Common)	Boston, MA	Urgent care center
Mass General Brigham Express Care (Brookline)	Brookline, MA	Urgent care center
Mass General Brigham Express Care (Danvers)	Danvers, MA	Urgent care center
Mass General Brigham Express Care (Lawrence)	Lawrence, MA	Urgent care center
Mass General Brigham Express Care (Lynn)	Lynn, MA	Urgent care center
Mass General Brigham Express Care (Natick)	Natick, MA	Urgent care center
Mass General Brigham Express Care (Newton)	Newton, MA	Urgent care center
Mass General Brigham Express Care (Pembroke)	Pembroke, MA	Urgent care center
Mass General Brigham Express Care (South Weymouth)	South Weymouth, MA	Urgent care center
Mass General Brigham Express Care (Southampton)	Southampton, MA	Urgent care center
Mass General Brigham Express Care (Woburn)	Woburn, MA	Urgent care center
Mass General Brigham Express Care at Cooley Dickinson Hospital	Northampton, MA	Urgent care center
Mass General Brigham for Children at Salem Hospital	Salem, MA	Hospital outpatient department
Mass General Brigham Heart and Vascular Institute at Brigham and Women's Hospital	Boston, MA	Hospital outpatient department
Mass General Brigham Urgent Care Llc	Woburn, MA	Urgent care center
Mass General Brigham Urgent Care Llc	Newton, MA	Urgent care center
Mass General Brigham Urgent Care LLC	Watertown, MA	Urgent care center
Mass General Brigham Urgent Care LLC	Medford, MA	Urgent care center
Mass General Brigham Urgent Care LLC	Westwood, MA	Urgent care center
Mass General Brigham Urgent Care LLC	Cambridge, MA	Urgent care center
Mass General Brigham Urgent Care LLC	Cambridge, MA	Urgent care center
Mass General Brigham Urgent Care LLC	Natick, MA	Urgent care center
Mass General Brigham Urgent Care LLC	Burlington, MA	Urgent care center
Mass General Broadway Primary Care at Revere	Revere, MA	Hospital outpatient department
Mass General Waltham Outpatient Surgery Center	Waltham, MA	Ambulatory surgery center
MASSACHUSETTS EYE AND EAR INFIRMARY	BOSTON, MA	Short-term acute hospital
Massachusetts General Anticoagulation Management Service	Boston, MA	Hospital outpatient department
Massachusetts General Back Bay Healthcare Center	Boston, MA	Hospital outpatient department
Massachusetts General Beacon Hill Primary Care Clinic	Boston, MA	Hospital outpatient department
Massachusetts General Benson-Henry Institute for Mind Body Medicine	Boston, MA	Hospital outpatient department
Massachusetts General Brain and Body Program	Boston, MA	Hospital outpatient department
Massachusetts General clinics at 102 Endicott Street, Danvers	Danvers, MA	Hospital outpatient department
Massachusetts General clinics at 52 Second Avenue, Waltham	Waltham, MA	Hospital outpatient department
Massachusetts General clinics at Chelsea Community Health Center (100 Everett Ave)	Chelsea, MA	Hospital outpatient department
Massachusetts General Everett Family Care Clinic	Everett, MA	Hospital outpatient department
Massachusetts General Fertility Center	Boston, MA	Hospital outpatient department
MASSACHUSETTS GENERAL HOSPITAL	BOSTON, MA	Short-term acute hospital
MASSACHUSETTS GENERAL HOSPITAL - Arlington	Arlington, MA	Hospital outpatient department
MASSACHUSETTS GENERAL HOSPITAL - Attleboro	Attleboro, MA	Hospital outpatient department
MASSACHUSETTS GENERAL HOSPITAL - Boston (15 Parkman St, Wang building)	Boston, MA	Hospital outpatient department
MASSACHUSETTS GENERAL HOSPITAL - Boston (175 Cambridge St)	Boston, MA	Hospital outpatient department
MASSACHUSETTS GENERAL HOSPITAL - Brockton	Brockton, MA	Hospital outpatient department
MASSACHUSETTS GENERAL HOSPITAL - North Andover	North Andover, MA	Hospital outpatient department
MASSACHUSETTS GENERAL HOSPITAL - Randolph	Randolph, MA	Hospital outpatient department
MASSACHUSETTS GENERAL HOSPITAL - Somerville	Somerville, MA	Hospital outpatient department
MASSACHUSETTS GENERAL HOSPITAL - South Boston	South Boston, MA	Hospital outpatient department
Massachusetts General Hospital, Blood Draw (North End)	Boston, MA	Hospital outpatient department
Massachusetts General Medical Group	Boston, MA	Hospital outpatient department
Massachusetts General Pain Management Center	Waltham, MA	Hospital outpatient department
Massachusetts General Physical Medicine and Rehabilitation Clinic	Foxborough, MA	Hospital outpatient department
Massachusetts General Primary Care Clinic	Boston, MA	Hospital outpatient department
Massachusetts General Psychiatry at Bowdoin Square	Boston, MA	Hospital outpatient department
Massachusetts General Pulmonary Clinic	Boston, MA	Hospital outpatient department
Massachusetts General Sumner M. Redstone Burn Center	Boston, MA	Hospital outpatient department
Massachusetts General Thoracic Surgery Clinic	Boston, MA	Hospital outpatient department
Massachusetts General Urology Clinic	Boston, MA	Hospital outpatient department
McLean Addiction Treatment Center at Fernside	Princeton, MA	Hospital outpatient department
McLean Child and Adolescent Outpatient Clinic (MAMP)	Cambridge, MA	Hospital outpatient department
MCLEAN HOSPITAL CORPORATION	BELMONT, MA	Psychiatric hospital
McLean SouthEast	Middleboro, MA	Hospital outpatient department
Merrimack Valley Endoscopy Center	Haverhill, MA	Ambulatory surgery center
Merrimack Valley Endoscopy Center LLC	Haverhill, MA	Ambulatory surgery center
NANTUCKET COTTAGE HOSPITAL	NANTUCKET, MA	Short-term acute hospital
Nantucket Cottage Hospital Urgent Access Clinic	Nantucket, MA	Urgent care center
Nantucket Cottage Pharmacy	Nantucket, MA	Hospital outpatient department
Newton-Wellesley - McLean Psychiatry Services at Bridge by Epoch	Lexington, MA	Hospital outpatient department
NEWTON-WELLESLEY HOSPITAL	NEWTON, MA	Short-term acute hospital
NEWTON-WELLESLEY HOSPITAL - Westford	Westford, MA	Hospital outpatient department
Newton-Wellesley Hospital, Blood Draw (Natick)	Natick, MA	Hospital outpatient department
Newton-Wellesley Hospital, Blood Draw (Walpole)	Walpole, MA	Hospital outpatient department
Newton-Wellesley Hospital, Blood Draw (Waltham)	Waltham, MA	Hospital outpatient department
Newton-Wellesley Hospital, Blood Draw (Wellesley)	Wellesley, MA	Hospital outpatient department
Newton-Wellesley Kaplan Joint Center	Newton, MA	Hospital outpatient department
Newton-Wellesley McLean Psychiatric Services at Adelaide	Newton Centre, MA	Hospital outpatient department
Newton-Wellesley Outpatient Surgery Center	Wellesley, MA	Ambulatory surgery center
Newton-Wellesley Sleep Center	Newton, MA	Hospital outpatient department
Newton-Wellesley Sports Physical Therapy Clinic at the Wells Ave YMCA	Newton, MA	Hospital outpatient department
NORTH SHORE MEDICAL CENTER -	SALEM, MA	Short-term acute hospital
Outpatient Surgery Center At Mass General Waltham	Waltham, MA	Ambulatory surgery center
Partners Urgent Care	Boston, MA	Urgent care center
Revere Community Health Center	Revere, MA	Hospital outpatient department
Salem Hospital Emergency Department	Salem, MA	Freestanding ED
Salem Hospital Mental Health Outpatient Services	Salem, MA	Hospital outpatient department
Salem Hospital Physical Medicine and Rehabilitation Clinic	Salem, MA	Hospital outpatient department
Salem Hospital, Blood Draw (Danvers, 1 Hutchinson Dr)	Danvers, MA	Hospital outpatient department
Salem Hospital, Blood Draw (Danvers, 104 Endicott St)	Danvers, MA	Hospital outpatient department
Salem Hospital, Blood Draw (Marblehead)	Marblehead, MA	Hospital outpatient department
South Shore Endoscopy Center	Braintree, MA	Ambulatory surgery center
Southern Jamaica Plain Community Health Center	Jamaica Plain, MA	Hospital outpatient department
Spaulding Eileen M Ward Outpatient Center For Children Sandwich	Forestdale, MA	Outpatient rehabilitation
Spaulding Eileen M Ward Outpatient Center For Children Sandwich	Sandwich, MA	Outpatient rehabilitation
SPAULDING HOSPITAL FOR CONTINUING MED CARE-CAMB	Cambridge, MA	Long-term care hospital
SPAULDING HOSPITAL FOR CONTINUING MED CARE-CAMB - Boston	Boston, MA	Hospital outpatient department
Spaulding Rehabilitation Center for Children in Lexington	Lexington, MA	Hospital outpatient department
Spaulding Rehabilitation Eileen M. Ward Outpatient Center for Children (Sandwich)	Sandwich, MA	Hospital outpatient department
SPAULDING REHABILITATION HOSPITAL	Charlestown, MA	Rehabilitation hospital
SPAULDING REHABILITATION HOSPITAL - CAPE COD	East Sandwich, MA	Rehabilitation hospital
Spaulding Rehabilitation Hospital (Charlestown)	Charlestown, MA	Hospital campus
Spaulding Rehabilitation Outpatient Center (Brighton)	Brighton, MA	Hospital outpatient department
Spaulding Rehabilitation Outpatient Center (Cambridge)	Cambridge, MA	Hospital outpatient department
Spaulding Rehabilitation Outpatient Center (Cape Ann)	Gloucester, MA	Hospital outpatient department
Spaulding Rehabilitation Outpatient Center (Framingham)	Framingham, MA	Hospital outpatient department
Spaulding Rehabilitation Outpatient Center (Hyannis)	Hyannis, MA	Hospital outpatient department
Spaulding Rehabilitation Outpatient Center (Lynn)	Lynn, MA	Hospital outpatient department
Spaulding Rehabilitation Outpatient Center (Medford)	Medford, MA	Hospital outpatient department
Spaulding Rehabilitation Outpatient Center (Orleans)	Orleans, MA	Hospital outpatient department
Spaulding Rehabilitation Outpatient Center (Peabody)	Peabody, MA	Hospital outpatient department
Spaulding Rehabilitation Outpatient Center (Plymouth)	Plymouth, MA	Hospital outpatient department
Spaulding Rehabilitation Outpatient Center (Salem)	Salem, MA	Hospital outpatient department
Spaulding Rehabilitation Outpatient Center (Wellesley)	Wellesley, MA	Hospital outpatient department
Spaulding Rehabilitation Outpatient Center at Emilson YMCA (Hanover)	Hanover, MA	Hospital outpatient department
Spaulding Rehabilitation Outpatient Center at South Shore YMCA (Quincy)	Quincy, MA	Hospital outpatient department
Spaulding Rehabilitation Outpatient Center Braintree	Braintree, MA	Hospital outpatient department
Spaulding Rehabilitation Outpatient Center Malden	Malden, MA	Hospital outpatient department
Spaulding Rehabilitation Outpatient Center Marblehead Jewish Community Center	Marblehead, MA	Hospital outpatient department
Spaulding Rehabilitation Physical Medicine and Rehabilitation Clinic	Natick, MA	Hospital outpatient department
Spaulding Rehabilitation Physical Therapy Clinic (Marblehead)	Marblehead, MA	Hospital outpatient department
Sports Medicine and Physical Therapy Associates from Nantucket Cottage Hospital	Nantucket, MA	Hospital outpatient department
The Gunderson Residence Program at McLean Hospital	Cambridge, MA	Hospital outpatient department
Vital Beauty Aesthetics And Wellness	Canton, MA	Urgent care center
Mass General Brigham at Wentworth Surgery Center	Somersworth, NH	Ambulatory surgery center
Wentworth Douglass Hospital	Portsmouth, NH	Urgent care center
Wentworth Douglass Hospital	Dover, NH	Urgent care center
Wentworth Douglass Hospital	Somersworth, NH	Urgent care center
Wentworth-Douglass Express Care (Dover)	Dover, NH	Urgent care center
Wentworth-Douglass Express Care (Lee)	Lee, NH	Urgent care center

By state

State	Facilities
Massachusetts	178
New Hampshire	6

Ownership tree

10 entities · 67 facilities

Mass General Brigham
- Mass General Brighamconsolidating parent
  - Wentworth Douglass Hospital, Portsmouth
  - Wentworth Douglass Hospital, Dover
  - Wentworth Douglass Hospital, Somersworth
- Mass General Brighamconsolidating parent
- Mass General Brighamconsolidating parent
  - MASSACHUSETTS EYE AND EAR INFIRMARYahrq system member
    - MASSACHUSETTS EYE AND EAR INFIRMARY, BOSTON
  - MASS GENERAL BRIGHAM INCORPORATEDahrq system member
    - MASSACHUSETTS EYE AND EAR INFIRMARYowner · 100%
      - MASSACHUSETTS EYE AND EAR INFIRMARY, BOSTON
  - Merrimack Valley Endoscopy Center LLC, Haverhill
- MASS GENERAL BRIGHAM COMMUNITY PHYSICIANS ON DEMANDconsolidating parent
  - Mass General Brigham Community Physicians On Demand, Lawrence
- Mass General Brighamconsolidating parent
  - Brigham and Women's Urgent Care in Foxborough, Foxborough
  - Mass General Brigham Express Care (Boston Common), Boston
  - Mass General Brigham Express Care (Brookline), Brookline
  - Mass General Brigham Express Care (Lawrence), Lawrence
  - Mass General Brigham Express Care (Lynn), Lynn
  - Mass General Brigham Express Care (Newton), Newton
  - Mass General Brigham Express Care (Pembroke), Pembroke
  - Mass General Brigham Express Care (South Weymouth), South Weymouth
  - Mass General Brigham Express Care (Southampton), Southampton
  - Mass General Brigham Express Care at Cooley Dickinson Hospital, Northampton
- MASS GENERAL BRIGHAM URGENT CARE LLCconsolidating parent
  - Mass General Brigham Urgent Care Llc, Woburn
  - Mass General Brigham Urgent Care Llc, Newton
  - Mass General Brigham Urgent Care LLC, Watertown
  - Mass General Brigham Urgent Care LLC, Medford
  - Mass General Brigham Urgent Care LLC, Cambridge
  - Mass General Brigham Urgent Care LLC, Cambridge
  - Mass General Brigham Urgent Care LLC, Natick
  - Mass General Brigham Urgent Care LLC, Burlington
  - Partners Urgent Care, Boston
  - Vital Beauty Aesthetics And Wellness, Canton
- American Current Care Of Massachusetts PC, Greenfield
- BRIGHAM AND WOMEN'S FAULKNER HOSPITAL, JAMAICA PLAIN
- BRIGHAM AND WOMEN'S HOSPITAL, BOSTON
- Brigham And Womens Mri West Bridgewater, West Bridgewater
- Brigham And Womens Radiology Coolidge Corner Imaging, Brookline
- Cdmg Urgent Care, Northampton
- Charles River Diagnostic Imaging, Framingham
- Chelsea Community Health Center Urgent Care, Chelsea
- COOLEY DICKINSON HOSPITAL INC, THE, NORTHAMPTON
- Ingalls Elementary Sbhc, Lynn
- Lynn Classical High School Sbhc, Lynn
- Lynn Community Health Center, Lynn
- Lynn Community Health Center, Lynn
- Lynn Community Health Center School Based Program, Lynn
- Lynn Community Health Center School Based Program At Harrington Elementary, Lynn
- Lynn English High School Sbhc, Lynn
- Lynn Vocational Technical High School Sbhc, Lynn
- MARTHA'S VINEYARD HOSPITAL INC, OAK BLUFFS
- Mass General Brigham Express Care (Amherst), Amherst
- Mass General Brigham Express Care (Andover), Andover
- Mass General Brigham Express Care (Danvers), Danvers
- Mass General Brigham Express Care (Natick), Natick
- Mass General Brigham Express Care (Woburn), Woburn
- Mass General Brigham Urgent Care LLC, Westwood
- Mass General Waltham Outpatient Surgery Center, Waltham
- MASSACHUSETTS GENERAL HOSPITAL, BOSTON
- MCLEAN HOSPITAL CORPORATION, BELMONT
- Merrimack Valley Endoscopy Center, Haverhill
- NANTUCKET COTTAGE HOSPITAL, NANTUCKET
- Nantucket Cottage Hospital Urgent Access Clinic, Nantucket
- NEWTON-WELLESLEY HOSPITAL, NEWTON
- NORTH SHORE MEDICAL CENTER -, SALEM
- Outpatient Surgery Center At Mass General Waltham, Waltham
- South Shore Endoscopy Center, Braintree
- Spaulding Eileen M Ward Outpatient Center For Children Sandwich, Forestdale
- Spaulding Eileen M Ward Outpatient Center For Children Sandwich, Sandwich
- SPAULDING HOSPITAL FOR CONTINUING MED CARE-CAMB, Cambridge
- SPAULDING REHABILITATION HOSPITAL, Charlestown
- SPAULDING REHABILITATION HOSPITAL - CAPE COD, East Sandwich
- Wentworth-Douglass Express Care (Lee), Lee

From CMS ownership and affiliated-entity records. Percentages are as reported to CMS.

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