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, 351 to 400
#	Medical group	Parent organization	Physicians	HCPs	Decision makers
351	Pathology Associates of Central Illinois (PACI)Springfield · 4 sites	-	16	16	Decision makers
352	Geode HealthRockford · 22 sites	Parent on file	15	194	Decision makers
353	360 AnesthesiaMaryville · 21 sites	Parent on file	15	93	Decision makers
354	Innovative CareChicago · 7 sites	-	15	60	Decision makers
355	Horizon HealthcareFairfield · 2 sites	Parent on file	15	50	Decision makers
356	Cardiac Surgery AssociatesDowners Grove · 27 sites	-	15	36	Decision makers
357	OSF Saint Luke Medical CenterKewanee · 1 site	Parent on file	15	26	Decision makers
358	Emerge Quick CareFrankfort · 3 sites	Parent on file	15	20	Decision makers
359	Partners in Pathology and Laboratory MedicineNaperville · 4 sites	-	15	16	Decision makers
360	Illinois Pathologist ServicesPeoria · 5 sites	Parent on file	15	15	Decision makers
361	Chestnut Health SystemsBloomington · 8 sites	Parent on file	14	95	Decision makers
362	Barrington Orthopedic SpecialistsSchaumburg · 7 sites	Parent on file	14	63	Decision makers
363	Anesthesia Pain ServicesStreator · 10 sites	Parent on file	14	53	Decision makers
364	Promise HealthcareChampaign · 14 sites	Parent on file	14	48	Decision makers
365	Kane Anesthesia AssociatesGeneva · 2 sites	-	14	43	Decision makers
366	Orthopaedic Institute of Southern IllinoisHerrin · 7 sites	-	14	41	Decision makers
367	First DocsNaperville · 90 sites	Parent on file	14	28	Decision makers
368	Heartland Alliance HealthChicago · 4 sites	Parent on file	14	28	Decision makers
369	Illinois Eye CenterPeoria · 3 sites	-	14	26	Decision makers
370	Illinois Pain & Spine InstituteElgin · 5 sites	Parent on file	14	26	Decision makers
371	Midwest Digestive Health & NutritionDes Plaines · 4 sites	-	14	26	Decision makers
372	Lurie Children’s Surgical FoundationChicago · 1 site	Parent on file	14	25	Decision makers
373	Midwest Respiratory Ltd.Joliet · 8 sites	-	14	25	Decision makers
374	Suburban Gastroenterology, Ltd.Naperville · 3 sites	-	14	25	Decision makers
375	Consultants in Cardiology & ElectrophysiologyEvergreen Park · 2 sites	-	14	24	Decision makers
376	Medical Arts AssociatesMoline · 2 sites	-	14	21	Decision makers
377	Rockford Nephrology AssociatesRockford · 7 sites	-	14	21	Decision makers
378	Advanced Radiology ConsultantsPark Ridge · 5 sites	-	14	15	Decision makers
379	Laboratory and Pathology DiagnosticsNaperville · 2 sites	-	14	15	Decision makers
380	Peoria Tazewell Pathology GroupPeoria · 8 sites	-	14	15	Decision makers
381	Suburban Lung AssociatesElk Grove Village · 4 sites	-	14	15	Decision makers
382	Bright Light Medical ImagingElk Grove Village · 7 sites	-	14	14	Decision makers
383	Central Illinois PathologyPeoria · 3 sites	-	14	14	Decision makers
384	Valley Imaging ConsultantsAurora · 7 sites	-	14	14	Decision makers
385	Geode HealthOak Brook · 20 sites	Parent on file	13	133	Decision makers
386	Community Health Partnership of Illinois (CHP)Chicago · 11 sites	Parent on file	13	38	Decision makers
387	EPIC GroupMorris · 5 sites	Parent on file	13	30	Decision makers
388	MidAmerica OrthopaedicsPalos Hills · 2 sites	-	13	28	Decision makers
389	Humboldt Park HealthChicago · 5 sites	Parent on file	13	27	Decision makers
390	Advanced Inpatient Consultants LLCVernon Hills · 3 sites	-	13	26	Decision makers
391	Silver Oaks Behavioral HospitalNew Lenox · 1 site	Parent on file	13	23	Decision makers
392	Family Medical Center-LincolnLincoln · 3 sites	Parent on file	13	20	Decision makers
393	Digestive Disease Consultants of KankakeeBourbonnais · 3 sites	-	13	17	Decision makers
394	HSHS Medical GroupSpringfield · 3 sites	Parent on file	13	15	Decision makers
395	Retina Consultants, Ltd.Des Plaines · 8 sites	-	13	13	Decision makers
396	Geode HealthOak Brook · 16 sites	Parent on file	12	121	Decision makers
397	ORA OrthopedicsMoline · 14 sites	-	12	70	Decision makers
398	Alexian Brothers Behavioral Health Hospital Outpatient Group PracticeHoffman Estates · 5 sites	Parent on file	12	65	Decision makers
399	Trinity Medical Staffing LLCCarbondale · 9 sites	Parent on file	12	53	Decision makers
400	Metropolitan Healthcare PartnersChicago · 7 sites	-	12	32	Decision makers

Showing 351 to 400 of 4,250 medical groups in Illinois

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

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