Updated October 2026

Medical groups in Illinois

Medical group directory
Illinois

Medical groups: 4,250
Multi-specialty: 847
Single-specialty: 3,403
More than one site: 1,970
100+ physicians: 73

There are 4,250 medical groups in Illinois with a Medicare PAC ID. Northwestern Medical Faculty Foundation is the largest, with 3,118 Illinois physicians. Northwestern Medicine has the most physicians across its groups, 3,995, and 69% of Illinois groups are independent.

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Northwestern Medical Faculty Foundation is the largest medical 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. 73 Illinois groups have 100 or more physicians.

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Medical groups in Illinois, ranked by physicians, 501 to 550
#	Medical group	Parent organization	Physicians	HCPs	Decision makers
501	Arlington Ridge PathologyArlington Heights · 2 sites	-	9	9	Decision makers
502	Endeavor Health Medical GroupChicago · 1 site	Parent on file	9	9	Decision makers
503	Gastroenterologists LtdLibertyville · 3 sites	-	9	9	Decision makers
504	NANI VascularOak Brook · 2 sites	-	9	9	Decision makers
505	PryorHealthRockford · 2 sites	-	9	9	Decision makers
506	Retina Institute of IllinoisNiles · 5 sites	Parent on file	9	9	Decision makers
507	Bespoke PsychiatryChicago · 6 sites	-	8	65	Decision makers
508	Gateway Professional Services, PCChicago · 21 sites	-	8	40	Decision makers
509	Conventions Psychiatry & CounselingWarrenville · 5 sites	-	8	26	Decision makers
510	Northern Illinois Medical AssociatesSycamore · 6 sites	-	8	25	Decision makers
511	Forever Care Home PhysiciansDes Plaines · 3 sites	-	8	21	Decision makers
512	SIH Primary Care HarrisburgHarrisburg · 1 site	Parent on file	8	20	Decision makers
513	Solvera HealthPeoria · 3 sites	-	8	20	Decision makers
514	Prairie Eye and LASIK CenterSpringfield · 6 sites	-	8	18	Decision makers
515	Ticho Eye AssociatesChicago Ridge · 3 sites	-	8	15	Decision makers
516	University of Michigan Health-SparrowChicago · 69 sites	Parent on file	8	15	Decision makers
517	Midwest DermatologyArlington Heights · 5 sites	-	8	14	Decision makers
518	Raby Institute for Integrative Medicine at NorthwesternChicago · 2 sites	-	8	14	Decision makers
519	The Pain Center of IllinoisChicago · 2 sites	-	8	14	Decision makers
520	Pain & Spine InstituteJoliet · 4 sites	-	8	13	Decision makers
521	Stillpoint Mental HealthHinsdale · 2 sites	-	8	13	Decision makers
522	Lake Behavioral HospitalWaukegan · 1 site	Parent on file	8	12	Decision makers
523	Primary Care AssociatesBerwyn · 2 sites	-	8	12	Decision makers
524	Southwest Infectious Disease Associates LTD (SWIDA)Joliet · 1 site	-	8	12	Decision makers
525	Suburban Ear, Nose and Throat Associates, Ltd.Rolling Meadows · 1 site	-	8	12	Decision makers
526	Kidney Care CenterJoliet · 2 sites	-	8	11	Decision makers
527	Rush Oak Park Physicians Group Elmwood ParkElmwood Park · 2 sites	Parent on file	8	11	Decision makers
528	Arlington Eye PhysiciansArlington Heights · 2 sites	-	8	10	Decision makers
529	Chicago Surgical ClinicArlington Heights · 2 sites	Parent on file	8	10	Decision makers
530	City of HopeChicago · 35 sites	Parent on file	8	10	Decision makers
531	The Derm Institute of ChicagoHinsdale · 3 sites	-	8	10	Decision makers
532	USA Vascular Centers ChicagoNorthbrook · 2 sites	Parent on file	8	10	Decision makers
533	USA Vein Clinics - Chicago on Belmont Ave.Chicago · 5 sites	Parent on file	8	10	Decision makers
534	Associated Imaging SpecialistsElgin · 1 site	-	8	9	Decision makers
535	Kovach Eye InstituteElmhurst · 2 sites	-	8	9	Decision makers
536	Northwest Infectious Disease ConsultantsNiles · 1 site	-	8	9	Decision makers
537	Northwest Pulmonary AssociatesChicago · 1 site	-	8	9	Decision makers
538	Partners in Pelvic Health North Shore UrogynecologyPark City · 8 sites	-	8	9	Decision makers
539	Affiliated OncologistsPalos Heights · 2 sites	-	8	8	Decision makers
540	Comprehensive Wound Care, LLCNorthbrook · 1 site	-	8	8	Decision makers
541	Dedication HealthWinnetka · 4 sites	-	8	8	Decision makers
542	Northwest Suburban Medical AssociatesArlington Hts · 1 site	-	8	8	Decision makers
543	River Road Anesthesia SpecialistsDes Plaines · 2 sites	-	8	8	Decision makers
544	Women's Health SpecialistsPark Ridge · 1 site	-	8	8	Decision makers
545	Wellness Homes of ChicagoChicago · 3 sites	Parent on file	7	40	Decision makers
546	SamaraCareNaperville · 4 sites	Parent on file	7	39	Decision makers
547	Healing PartnersNaperville · 23 sites	Parent on file	7	36	Decision makers
548	Comprehensive Clinical Services, P.C.Lombard · 3 sites	-	7	29	Decision makers
549	IWS Family HealthChicago · 1 site	Parent on file	7	27	Decision makers
550	AFC Urgent CareHinsdale · 2 sites	Parent on file	7	25	Decision makers

Showing 501 to 550 of 4,250 medical groups in Illinois

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

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