Updated October 2026

Medical groups in Maine

Medical group directory
Maine

Medical groups: 424
Multi-specialty: 93
Single-specialty: 331
More than one site: 231
100+ physicians: 17

There are 424 medical groups in Maine with a Medicare PAC ID. MaineHealth Primary Care - Family Medicine - Portland is the largest, with 1,712 Maine physicians. MaineHealth has the most physicians across its groups, 2,010, and 68% of Maine groups are independent.

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MaineHealth Primary Care - Family Medicine - Portland is the largest medical group in Maine, with 1,712 physicians

Ranked by physicians with a Maine address linked to each group. MaineHealth Pediatric Cancer Care, Blood Disorders and IV Therapy (formerly Maine Children's Cancer Program) is second with 710, and MaineGeneral Health third with 478. 17 Maine groups have 100 or more physicians.

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Medical groups in Maine, ranked by physicians
#	Medical group	Parent organization	Physicians	HCPs	Decision makers
1	MaineHealth Primary Care - Family Medicine - PortlandPortland · 214 sites	Parent on file	1,712	3,472	Decision makers
2	MaineHealth Pediatric Cancer Care, Blood Disorders and IV Therapy (formerly Maine Children's Cancer Program)South Portland · 83 sites	Parent on file	710	1,195	Decision makers
3	MaineGeneral HealthAugusta · 47 sites	Parent on file	478	951	Decision makers
4	Northern Light Eastern Maine Medical CenterBangor · 33 sites	Parent on file	449	868	Decision makers
5	Central Maine Medical CenterLewiston · 24 sites	Parent on file	410	780	Decision makers
6	Spectrum Healthcare PartnersSouth Portland · 144 sites	-	270	313	Decision makers
7	Rumford HospitalRumford · 3 sites	Parent on file	243	443	Decision makers
8	Bridgton HospitalBridgton · 8 sites	Parent on file	241	455	Decision makers
9	Northern Light Mercy HospitalPortland · 39 sites	Parent on file	208	451	Decision makers
10	St. Mary's Health SystemLewiston · 19 sites	Parent on file	196	350	Decision makers
11	York HospitalYork · 33 sites	Parent on file	151	351	Decision makers
12	MaineHealth Maine Medical Center BiddefordBiddeford · 30 sites	Parent on file	143	249	Decision makers
13	MaineHealth Pen Bay HospitalRockland · 10 sites	Parent on file	133	218	Decision makers
14	InterMed, P.A.South Portland · 11 sites	-	131	270	Decision makers
15	St. Joseph General Surgery and UrologyBangor · 13 sites	Parent on file	115	214	Decision makers
16	BlueWater Emergency PartnersYork · 27 sites	Parent on file	113	184	Decision makers
17	Northern Light AR Gould HospitalPresque Isle · 9 sites	Parent on file	105	195	Decision makers
18	Martin's Point Health CarePortland · 19 sites	Parent on file	91	143	Decision makers
19	Northern Light Maine Coast HospitalEllsworth · 7 sites	Parent on file	87	170	Decision makers
20	Northern Light Emergency CareEllsworth · 13 sites	Parent on file	87	123	Decision makers
21	Redington-Fairview General HospitalSkowhegan · 6 sites	Parent on file	84	140	Decision makers
22	Down East Community HospitalMachias · 4 sites	Parent on file	84	110	Decision makers
23	MaineHealth Waldo HospitalBelfast · 9 sites	Parent on file	82	130	Decision makers
24	MaineHealth Stephens HospitalNorway · 5 sites	Parent on file	78	133	Decision makers
25	Northern Light Mayo HospitalDover-Foxcroft · 8 sites	Parent on file	76	141	Decision makers
26	Houlton Regional HospitalHoulton · 2 sites	Parent on file	70	99	Decision makers
27	Northern Light Sebasticook Valley HospitalPittsfield · 5 sites	Parent on file	69	135	Decision makers
28	Mount Desert Island HospitalBar Harbor · 9 sites	Parent on file	68	107	Decision makers
29	Northern Light Blue Hill HospitalBlue Hill · 4 sites	Parent on file	66	120	Decision makers
30	Northern Light Acadia HospitalBangor · 14 sites	Parent on file	65	321	Decision makers
31	Swift River Family MedicineRumford · 7 sites	Parent on file	60	86	Decision makers
32	Northern Light CA Dean HospitalGreenville · 2 sites	Parent on file	55	98	Decision makers
33	MaineHealth Franklin HospitalFarmington · 7 sites	Parent on file	47	72	Decision makers
34	Penobscot Bay Physicians & AssociatesRockport · 8 sites	Parent on file	46	70	Decision makers
35	Penobscot Valley HospitalLincoln · 3 sites	Parent on file	44	67	Decision makers
36	Cary Medical CenterCaribou · 3 sites	Parent on file	42	80	Decision makers
37	Northern Maine Medical CenterFort Kent · 4 sites	Parent on file	41	97	Decision makers
38	Northern Light Maine Coast HospitalEllsworth · 6 sites	Parent on file	39	59	Decision makers
39	Pines Health ServicesCaribou · 9 sites	Parent on file	38	75	Decision makers
40	New England Cancer SpecialistsWestbrook · 9 sites	-	37	79	Decision makers
41	Riverview Physical TherapyPortland · 12 sites	-	34	57	Decision makers
42	Penobscot Community Health Care (PCHC)Bangor · 20 sites	Parent on file	31	167	Decision makers
43	Chest Medicine AssociatesSouth Portland · 2 sites	-	30	40	Decision makers
44	Greater Portland HealthPortland · 20 sites	Parent on file	28	72	Decision makers
45	Millinocket Regional HospitalMillinocket · 2 sites	Parent on file	26	47	Decision makers
46	Dorothea Dix Psychiatric CenterBangor · 9 sites	Parent on file	23	87	Decision makers
47	Kennebec Anesthesia Associates, P.A.Augusta · 5 sites	Parent on file	23	53	Decision makers
48	NES HealthBangor · 10 sites	Parent on file	22	26	Decision makers
49	Dermatology AssociatesPortland · 4 sites	-	19	21	Decision makers
50	Mt. Abram Regional Health CenterKingfield · 13 sites	Parent on file	17	96	Decision makers

Showing 1 to 10 of 424 medical groups in Maine

Sources: Doctors and Clinicians National Downloadable File (CMS) and Dmand AI Affiliation Data

MaineHealth has the most physicians in Maine medical groups, with 2,010 across 21 groups

Dmand AI maps every medical group to its parent organization, up to the health system or platform at the top. 8 parent organizations have two or more Maine medical groups. Each clinician counts once per parent organization.

Parent organizations with the most Maine medical groups
#	Parent organization	Maine groups	Physicians	HCPs
1	MaineHealthHealth system	21	2,010	4,056
2	Northern Light HealthHealth system	16	967	2,001
3	MaineGeneral HealthHealth system	4	503	1,007
4	Prime Healthcare ServicesHealth system	6	439	862
5	Covenant HealthHealth system	3	308	587
6	Down East Community HospitalHealth system	2	95	131
7	Northern Maine Medical CenterHealth system	2	42	98
8	Healthreach Community Health CentersCommunity health center	2	17	108

Parent organizations with two or more Maine groups

MaineHealthHealth system · 21 Maine medical groups
MaineHealth Primary Care - Family Medicine - PortlandMulti-specialty group · Portland
MaineHealth Pediatric Cancer Care, Blood Disorders and IV Therapy (formerly Maine Children's Cancer Program)Multi-specialty group · South Portland
19 more Maine groups and their practice sites

See every medical group, site and clinician under MaineHealth

Org Hierarchy Explorer maps every group, site of care and clinician under the parent, with the leaders at each group.

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Source: Dmand AI Org Hierarchy Data

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Dmand AI maps the owners, administrators and physician leaders at each of the 424 Maine medical groups, with the parent organization above each one, and finds validated work emails and mobile numbers.

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68% of Maine medical groups are independent, with no larger parent organization

A group counts as independent when no health system, platform or other organization sits above it in the org hierarchy. Every other group belongs to a larger organization.

Maine medical groups by ownership

Independent28768%
Health system or hospital6114%
Platform or corporate owner154%
Community or government4410%
Other organization174%

Source: Dmand AI Org Hierarchy Data

81 Maine medical groups practice at a hospital site

Beyond their own offices, groups practice at the sites of care linked to them in the org hierarchy. A group can practice at several kinds of site, so the shares overlap.

Sources: Dmand AI Practice Data and Dmand AI Org Hierarchy Data

Primary care groups are the most common medical groups in Maine, with 103

Each group is counted once, under its main specialty. Behavioral and mental health groups are second, with 83, and 93 Maine groups are multi-specialty.

Primary care103
Behavioral and mental health83
Rehabilitation and therapy74
Eye care53
Chiropractic43
Radiology and imaging14
ENT and audiology12
Podiatry9
Anesthesia and pain8
Emergency and hospital medicine6
Dermatology5
OB/GYN and women's health5
Pathology and laboratory2
Dental and oral surgery1
Orthopedics and sports medicine1
Pediatrics1
Plastic and cosmetic surgery1
Rheumatology, allergy and immunology1
General and specialty surgery1
Urology and nephrology1

Source: Dmand AI Professional Profile Data

10,960 Maine HCPs work in Maine medical groups, 4,419 of them physicians

Each clinician is counted once, across every Maine group they are linked to. Only clinicians with a Maine address are counted.

HCPs in Maine medical groups by type

Physicians (MD, DO)4,41940%
Nurses and nurse practitioners2,33821%
Behavioral health clinicians1,71216%
Physician assistants1,08310%
Therapists (PT and OT)6546%
Other HCPs7547%

Source: Dmand AI Affiliation Data

Portland has the most medical groups in Maine, with 46

46medical groups in Portland 43medical groups in Bangor 22medical groups in Augusta 21medical groups in South Portland 19medical groups in Lewiston 15medical groups in Scarborough

More Maine cities with medical groups

Waterville13
Falmouth12
Biddeford11
Brunswick10
Ellsworth8
Presque Isle8
York7
Auburn6
Belfast6
Caribou6
Farmington6
Kittery6
Rockport6
Rumford5
Fort Kent4

Source: Doctors and Clinicians National Downloadable File (CMS)

Each Maine medical group profile shows the parent, sites, clinicians and identifiers

Clinicians and specialtiesA count by specialty and a sample of the group's cliniciansOn every profile
Practice locationsMain site and a sample of practice locations, with a count of the restOn every profile
Medicare Part B paymentsMedicare payments to the group, from CMSOn every profile
Group NPI and Medicare PAC IDIdentifiers for matching records across sourcesOn every profile
Parent organizationThe health system, platform or owner above the groupOn every profile
Every clinician and siteThe full roster and every practice locationWith a free account
Leader and clinician contactsWork emails and mobile numbers, found on request and then validatedWith a free account
EHR used by the group's cliniciansThe EHR in use at the group's sitesWith a free account

Free account: 30 days free, self-serve, no credit card.

Sources: Doctors and Clinicians National Downloadable File (CMS), Medicare Physician & Other Practitioners (CMS) and Dmand AI Org Hierarchy Data

Sources for the Maine medical group directory

Sources for the data on this page
Data on this page	Source
Medical groups, specialties and sites	Doctors and Clinicians National Downloadable File (CMS) and Dmand AI Professional Profile Data
Parent organizations and independence	Dmand AI Org Hierarchy Data
Physicians and HCPs	Dmand AI Affiliation Data
Group NPI and PAC ID	NPPES NPI Registry (CMS) and Doctors and Clinicians National Downloadable File (CMS)

Data last refreshed October 2026Report an inaccuracy Remove my information

The directory lists groups with a Medicare PAC ID.

FAQ

Frequently asked questions about medical groups in Maine

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

How many medical groups are in Maine?

There are 424 medical groups in Maine with a Medicare PAC ID: 93 multi-specialty and 331 single-specialty.

What is the largest medical group in Maine?

MaineHealth Primary Care - Family Medicine - Portland in Portland, with 1,712 physicians and 3,472 HCPs with a Maine address. MaineHealth Pediatric Cancer Care, Blood Disorders and IV Therapy (formerly Maine Children's Cancer Program) is second with 710, and MaineGeneral Health is third with 478.

Which health system has the most medical groups in Maine?

By physicians, MaineHealth, with 2,010 across 21 groups, followed by Northern Light Health with 967 and MaineGeneral Health with 503.

How many Maine medical groups are independent?

287, or 68%, have no larger parent organization in the Dmand AI org hierarchy. 61 belong to a health system or hospital and 15 to a physician platform or corporate owner.

How many Maine medical groups practice at a hospital?

81 Maine groups practice at a hospital site linked to them in the Dmand AI org hierarchy.

How do I find a medical group's NPI or PAC ID?

Each medical group profile lists the group NPI and Medicare PAC ID at the top, with the main address and phone number. The NPI comes from the NPPES NPI Registry and the PAC ID from CMS Medicare enrollment.

How do I find decision makers at Maine medical groups?

Open a group's profile for its parent organization and leaders, then get work emails and mobile numbers through Dmand AI's healthcare waterfall enrichment. 30 days free, self-serve, no credit card.

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