Updated October 2026

Largest primary care groups in Maryland

Medical group directory
Maryland
Primary care

Groups: 1,051
Nurse Practitioner groups: 456
Internal Medicine groups: 407
Nurse practitioner specialists: 1,040
Internal medicine specialists: 4,302

There are 1,051 primary care groups in Maryland with a Medicare PAC ID: 456 nurse practitioner, 407 internal medicine, 143 family medicine, 28 physician assistant and 15 general practice. CVS MinuteClinic is the largest nurse practitioner group, with 59 nurse practitioner specialists, and Johns Hopkins University the largest internal medicine group, with 787 internal medicine specialists.

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Johns Hopkins University is the largest primary care group in Maryland, with 2,516 physicians

Ranked by physicians with a Maryland address linked to each group. Mid-Atlantic Permanente Medical Group is second with 1,404, and Johns Hopkins Department of Orthopaedic Surgery third with 860. 28 Maryland groups have 100 or more physicians.

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Primary care groups in Maryland, ranked by physicians, 51 to 100
#	Medical group	Parent organization	Physicians	HCPs	Decision makers
51	University of Maryland Family & Community Medicine at Paca StreetBaltimore · 6 sites	Parent on file	43	67	Decision makers
52	Mid-Atlantic Nephrology AssociatesBaltimore · 12 sites	-	43	64	Decision makers
53	MedStar Health: Urgent Care in WheatonWheaton · 68 sites	Parent on file	42	269	Decision makers
54	Synergy Medical GroupLutherville · 51 sites	-	40	100	Decision makers
55	University of Maryland Baltimore Washington Medical CenterGlen Burnie · 6 sites	Parent on file	39	58	Decision makers
56	Mdics at CalvertPrince Frederick · 8 sites	Parent on file	38	69	Decision makers
57	M Medical GroupGwynn Oak · 4 sites	Parent on file	37	39	Decision makers
58	Elliot R Goldstein MD & Joel R Schulman MD PARockville · 13 sites	-	36	54	Decision makers
59	Center for Vein RestorationGreenbelt · 28 sites	Parent on file	36	45	Decision makers
60	University of Maryland Faculty Physicians Immediate CareColumbia · 6 sites	Parent on file	34	56	Decision makers
61	Clinical AssociatesTowson · 5 sites	-	33	63	Decision makers
62	Five Star Physician ServicesLinthicum Heights · 6 sites	Parent on file	33	62	Decision makers
63	University of Maryland Marlene and Stewart Greenebaum Comprehensive Cancer Center (UMGCCC)Baltimore · 14 sites	Parent on file	32	92	Decision makers
64	First Medical AssociatesGermantown · 16 sites	Parent on file	31	64	Decision makers
65	Adfinitas HealthLa Plata · 7 sites	Parent on file	30	49	Decision makers
66	Garrett Regional Medical CenterOakland · 19 sites	Parent on file	27	61	Decision makers
67	Gastro HealthAnnapolis · 6 sites	Parent on file	27	51	Decision makers
68	Shore-Bayy Hospitalists AssociatesEaston · 4 sites	Parent on file	27	41	Decision makers
69	ExpressCare Urgent Care CentersBel Air · 50 sites	Parent on file	26	249	Decision makers
70	Meritus Urgent CareHagerstown · 12 sites	Parent on file	26	59	Decision makers
71	Maryland Medical First PAParkville · 5 sites	-	25	56	Decision makers
72	Erickson Health Medical GroupCatonsville · 5 sites	Parent on file	25	51	Decision makers
73	CloseKnitRockville · 41 sites	-	24	55	Decision makers
74	University of Maryland Charles Regional Medical CenterLa Plata · 4 sites	Parent on file	24	35	Decision makers
75	GilchristHunt Valley · 9 sites	Parent on file	23	65	Decision makers
76	Gastro Center of MarylandColumbia · 3 sites	Parent on file	23	33	Decision makers
77	Anacostia Medical AssociatesMillersville · 4 sites	-	22	26	Decision makers
78	Washington Nephrology AssociatesRockville · 22 sites	-	22	25	Decision makers
79	Righttime Medical CareRockville · 13 sites	Parent on file	21	93	Decision makers
80	Arthritis and Rheumatism Associates, P.C.Rockville · 8 sites	-	21	47	Decision makers
81	University of Maryland Baltimore Washington Heart AssociatesGlen Burnie · 6 sites	Parent on file	21	35	Decision makers
82	MedStar Health Cardiology at Annapolis Medical ParkwayAnnapolis · 3 sites	Parent on file	20	21	Decision makers
83	Post-Acute Physician PartnersBaltimore · 10 sites	Parent on file	19	45	Decision makers
84	Calvert Internal Medicine GroupPrince Frederick · 7 sites	-	19	43	Decision makers
85	Harford Primary Care at W. MacPhail - Bel AirBel Air · 7 sites	Parent on file	19	35	Decision makers
86	Capitol Cardiology AssociatesLanham · 7 sites	-	19	30	Decision makers
87	Mdics Rehabilitative Services LLCLa Plata · 12 sites	Parent on file	18	49	Decision makers
88	Upper Chesapeake Critical Care AssociatesBel Air · 7 sites	Parent on file	18	44	Decision makers
89	Saluja Medical AssociatesBaltimore · 5 sites	-	18	26	Decision makers
90	Patriot Urgent CareReisterstown · 20 sites	Parent on file	17	117	Decision makers
91	Padder Health ServicesLaurel · 6 sites	-	17	26	Decision makers
92	HealthDriveColumbia · 5 sites	Parent on file	16	31	Decision makers
93	Sun Rise RehabGreenbelt · 1 site	-	16	19	Decision makers
94	Annapolis RheumatologyAnnapolis · 7 sites	-	16	17	Decision makers
95	Greater Baden Medical Services, Inc.Brandywine · 8 sites	Parent on file	15	56	Decision makers
96	Centennial Medical GroupColumbia · 10 sites	-	15	55	Decision makers
97	Columbia Medical PracticeColumbia · 3 sites	-	15	29	Decision makers
98	Anne Arundel Gastroenterology AssociatesAnnapolis · 5 sites	-	15	23	Decision makers
99	AlignMed PartnersBaltimore · 74 sites	Parent on file	14	46	Decision makers
100	tru Primary CareGermantown · 9 sites	-	14	34	Decision makers

Showing 51 to 100 of 1,051 primary care groups in Maryland

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

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