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, 401 to 450
#	Medical group	Parent organization	Physicians	HCPs	Decision makers
401	Premiere Anesthesia GroupPark Ridge · 8 sites	-	12	32	Decision makers
402	Orthopedic Center of IllinoisSpringfield · 2 sites	-	12	31	Decision makers
403	Jacksonville Crnas IncJacksonville · 5 sites	-	12	29	Decision makers
404	The Illinois Center for Digestive and Liver HealthBarrington · 6 sites	-	12	23	Decision makers
405	Oak Street HealthEast Saint Louis · 2 sites	Parent on file	12	21	Decision makers
406	Oak DermatologyItasca · 6 sites	-	12	20	Decision makers
407	Century Ear, Nose & ThroatOrland Park · 2 sites	-	12	18	Decision makers
408	Elite Women's CareHoffman Estates · 2 sites	-	12	16	Decision makers
409	Fox Valley Medical AssociatesAurora · 3 sites	-	12	15	Decision makers
410	Southwest Nephrology AssociatesOrland Park · 3 sites	-	12	15	Decision makers
411	Medical Dermatology Associates of ChicagoChicago · 1 site	-	12	13	Decision makers
412	Comprehensive Pathology Services S.C.New Lenox · 3 sites	Parent on file	12	12	Decision makers
413	Rockford Radiology AssociatesRockford · 40 sites	Parent on file	12	12	Decision makers
414	Robert Young Mental Health CenterMoline · 11 sites	Parent on file	11	103	Decision makers
415	Stat CardiologistSchaumburg · 4 sites	-	11	33	Decision makers
416	Christian Community Health CenterChicago · 6 sites	Parent on file	11	32	Decision makers
417	Omni HealthcareChicago · 5 sites	-	11	32	Decision makers
418	Ear, Nose & Throat Specialists of IllinoisPark Ridge · 4 sites	-	11	27	Decision makers
419	Dermatology Associates of La GrangeLa Grange Highlands · 4 sites	-	11	25	Decision makers
420	Hamdard Health AllianceAddison · 3 sites	Parent on file	11	25	Decision makers
421	Asad Zaman MD SCTinley Park · 3 sites	-	11	22	Decision makers
422	Mohs Surgery & Dermatology CenterElgin · 4 sites	-	11	21	Decision makers
423	Skyline PhysiciansGlen Ellyn · 2 sites	-	11	16	Decision makers
424	Dermatology Partners of the North ShoreNorthbrook · 1 site	-	11	14	Decision makers
425	Lawn Medical CenterOak Lawn · 1 site	-	11	13	Decision makers
426	Michigan Avenue Immediate CareChicago · 2 sites	-	11	13	Decision makers
427	Integrated Wound ConsultantsLombard · 2 sites	-	11	12	Decision makers
428	Michigan Avenue Internists, LLCChicago · 2 sites	-	11	12	Decision makers
429	Radiological Consultants of WoodstockHoffman Estates · 2 sites	-	11	12	Decision makers
430	Simpson Eye Physicians & SurgeonsWest Dundee · 4 sites	-	11	12	Decision makers
431	Southwest Infectious Disease & Internal MedicinePalos Heights · 3 sites	-	11	12	Decision makers
432	University Ophthalmology AssociatesChicago · 4 sites	-	11	12	Decision makers
433	WomanCare PCMount Prospect · 2 sites	Parent on file	11	12	Decision makers
434	Associated Pathologists LtdSpringfield · 8 sites	-	11	11	Decision makers
435	Associated Pathology Consultants, SCElmhurst · 2 sites	Parent on file	11	11	Decision makers
436	Forward Focus Concierge MedicineLake Forest · 3 sites	-	11	11	Decision makers
437	Internal Medicine AssociatesChicago · 2 sites	-	11	11	Decision makers
438	Winfield Pathology ConsultantsWinfield · 3 sites	-	11	11	Decision makers
439	Hansa Medical GroupeSkokie · 22 sites	-	10	50	Decision makers
440	Rush Orthopaedics & Sports MedicineAurora · 3 sites	Parent on file	10	38	Decision makers
441	Alliance Clinical AssociatesWheaton · 3 sites	Parent on file	10	33	Decision makers
442	Integrated Pain ManagementLombard · 1 site	-	10	32	Decision makers
443	Litchfield Family Practice CenterLitchfield · 1 site	-	10	31	Decision makers
444	Deaconess Illinois ClinicColumbia · 12 sites	Parent on file	10	29	Decision makers
445	Quantum Vision CentersSwansea · 10 sites	Parent on file	10	24	Decision makers
446	Core Orthopedics and Sports MedicineElk Grove Village · 5 sites	-	10	22	Decision makers
447	Red Bud Health ClinicRed Bud · 1 site	Parent on file	10	20	Decision makers
448	United Woundcare InstituteNaperville · 2 sites	Parent on file	10	20	Decision makers
449	Riverside MedicalArlington Heights · 1 site	-	10	16	Decision makers
450	NANI - Nephrology Associates of Northern Illinois & IndianaOak Brook · 4 sites	-	10	15	Decision makers

Showing 401 to 450 of 4,250 medical groups in Illinois

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

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