Updated October 2026

Largest primary care groups in Illinois

Medical group directory
Illinois
Primary care

Groups: 1,232
Internal Medicine groups: 586
Family Medicine groups: 306
Internal medicine specialists: 7,661
Family physicians: 1,436

There are 1,232 primary care groups in Illinois with a Medicare PAC ID: 586 internal medicine, 306 family medicine, 302 nurse practitioner, 28 physician assistant, 7 general practice and 3 clinical nurse specialist. Northwestern Medical Faculty Foundation is the largest internal medicine group, with 920 internal medicine specialists, and PCC Community Wellness Center the largest family medicine group, with 93 family physicians.

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Northwestern Medical Faculty Foundation is the largest primary care group in Illinois, with 3,118 physicians

Ranked by physicians with an Illinois address linked to each group. Endeavor Health Medical Group is second with 3,048, and Dreyer Medical Clinic (Advocate Medical Group) third with 3,020. 59 Illinois groups have 100 or more physicians.

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Primary care groups in Illinois, ranked by physicians, 451 to 500
#	Medical group	Parent organization	Physicians	HCPs	Decision makers
451	Illinois Lung and Interventional Pulmonary AssociatesSchaumburg · 1 site	-	3	6	Decision makers
452	Infectious Disease Consultants of Northern IllinoisLibertyville · 1 site	-	3	6	Decision makers
453	North Shore InfusionSkokie · 2 sites	Parent on file	3	6	Decision makers
454	Signature Medical GroupArlington Heights · 2 sites	-	3	6	Decision makers
455	Skyline HealthcareNiles · 1 site	-	3	6	Decision makers
456	Elite Med Urgent CareHickory Hills · 1 site	Parent on file	3	5	Decision makers
457	Grand Vein SpecialistsChicago · 3 sites	-	3	5	Decision makers
458	Mid-Illinois Hematology and OncologyNormal · 4 sites	-	3	5	Decision makers
459	North Suburban Family MedicineDes Plaines · 2 sites	-	3	5	Decision makers
460	Palos InternistsOak Lawn · 2 sites	-	3	5	Decision makers
461	BG Medical CenterBuffalo Grove · 1 site	Parent on file	3	4	Decision makers
462	Family Practice Center of Palatine & Immediate CarePalatine · 1 site	Parent on file	3	4	Decision makers
463	Heart and Vascular Center of Lake CountyGurnee · 3 sites	-	3	4	Decision makers
464	I-Squared Medical GroupOak Park · 2 sites	-	3	4	Decision makers
465	Illinois Medical Care LtdChicago · 3 sites	Parent on file	3	4	Decision makers
466	JR Nephrology and AssociatesOak Lawn · 1 site	-	3	4	Decision makers
467	Medical Care Center of Lake VillaLake Villa · 1 site	-	3	4	Decision makers
468	Mercy Clinic Oncology and Hematology - AndersonMaryville · 3 sites	Parent on file	3	4	Decision makers
469	Midwest Pulmonary AssociatesLombard · 1 site	-	3	4	Decision makers
470	Nihon ClinicArlington Heights · 1 site	-	3	4	Decision makers
471	Oncology of NorthshoreRolling Meadows · 1 site	-	3	4	Decision makers
472	Physician's Choice WellnessMount Zion · 2 sites	-	3	4	Decision makers
473	Prairie State Pulmonary & Sleep ConsultantsOlympia Fields · 1 site	-	3	4	Decision makers
474	Progressive Medical CenterAddison · 2 sites	-	3	4	Decision makers
475	Rheumatic Disease Center Physicians, S.C.Des Plaines · 1 site	-	3	4	Decision makers
476	Rudyard Smith MD and Associates, SCChicago · 3 sites	Parent on file	3	4	Decision makers
477	Schaumburg Immediate CareSchaumburg · 1 site	-	3	4	Decision makers
478	Staunton ClinicStaunton · 1 site	-	3	4	Decision makers
479	Talcott Primary CareChicago · 1 site	-	3	4	Decision makers
480	Alliance Immediate & Primary CareChicago · 1 site	-	3	3	Decision makers
481	Heart MedSkokie · 2 sites	Parent on file	3	3	Decision makers
482	Illinois Veterans' Home at AnnaAnna · 1 site	Parent on file	3	3	Decision makers
483	Internal Medicine Physicians, Inc.Frankfort · 2 sites	-	3	3	Decision makers
484	MBS ImagingLombard · 1 site	-	3	3	Decision makers
485	McCammon-Chase Total Wellness CenterOak Park · 2 sites	-	3	3	Decision makers
486	Medplus S.C.Des Plaines · 6 sites	-	3	3	Decision makers
487	Midwest Primary CareEvergreen Park · 1 site	-	3	3	Decision makers
488	North Shore MedicalHighland Park · 3 sites	-	3	3	Decision makers
489	North Shore Physicians GroupWilmette · 1 site	-	3	3	Decision makers
490	Omni HealthcareLincolnwood · 2 sites	-	3	3	Decision makers
491	Orland Primary Care SpecialistsOrland Park · 2 sites	Parent on file	3	3	Decision makers
492	Rheumatology AssociatesChicago · 1 site	-	3	3	Decision makers
493	Sleep Matters MDWoodridge · 1 site	-	3	3	Decision makers
494	VeinCare ExpertsArlington Heights · 2 sites	-	3	3	Decision makers
495	Villa Medical ArtsVilla Park · 1 site	-	3	3	Decision makers
496	West Northwest Suburban Community Health CenterWestmont · 1 site	-	3	3	Decision makers
497	Wound Care Center Of ExcellenceWheaton · 1 site	-	3	3	Decision makers
498	Chicagoland Infectious DiseaseSouth Holland · 12 sites	-	2	54	Decision makers
499	Cermak Immediate CareCicero · 5 sites	Parent on file	2	51	Decision makers
500	Emediate Cure Quick CareShorewood · 4 sites	Parent on file	2	50	Decision makers

Showing 451 to 500 of 1,232 primary care groups in Illinois

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

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