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, 651 to 700
#	Medical group	Parent organization	Physicians	HCPs	Decision makers
651	Sinai Medical Centers LtdChicago · 2 sites	Parent on file	6	9	Decision makers
652	Suburban Surgery CenterElmwood Park · 1 site	Parent on file	6	9	Decision makers
653	Woodridge ClinicLombard · 3 sites	Parent on file	6	9	Decision makers
654	Addison Medical AssociatesAddison · 1 site	Parent on file	6	8	Decision makers
655	Apollo Hospitalist GroupLake Zurich · 1 site	-	6	8	Decision makers
656	Associated Allergists and Asthma SpecialistsOrland Park · 4 sites	-	6	8	Decision makers
657	Associated Anesthesiologists Of DecaturDecatur · 2 sites	-	6	8	Decision makers
658	Bakal DermatologyHoffman Estates · 2 sites	-	6	8	Decision makers
659	Chicago Eye ConsultantsStickney · 3 sites	Parent on file	6	8	Decision makers
660	Fox Valley OphthalmologySaint Charles · 3 sites	-	6	8	Decision makers
661	Geneva Eye ClinicGeneva · 1 site	-	6	8	Decision makers
662	Kidney Care CenterCrystal Lake · 3 sites	-	6	8	Decision makers
663	The Skin Care CenterLake Forest · 5 sites	-	6	8	Decision makers
664	USA Vascular CentersNorthbrook · 2 sites	Parent on file	6	8	Decision makers
665	Chandra Diagnostic CardiologyChicago · 2 sites	-	6	7	Decision makers
666	Chicago Hand & Orthopedic Surgery CentersSchaumburg · 3 sites	-	6	7	Decision makers
667	Clinical AssociatesDes Plaines · 1 site	-	6	7	Decision makers
668	East Central Illinois RadiologyDanville · 3 sites	Parent on file	6	7	Decision makers
669	Glazer DermatologyBuffalo Grove · 4 sites	-	6	7	Decision makers
670	Lake Forest Acute CareLake Forest · 2 sites	Parent on file	6	7	Decision makers
671	Lincoln Square Medical CenterChicago · 3 sites	-	6	7	Decision makers
672	Medplus Medical CenterHazel Crest · 2 sites	Parent on file	6	7	Decision makers
673	North Shore AssociatesEvanston · 2 sites	Parent on file	6	7	Decision makers
674	Oral & Maxillofacial, Head & Neck Associates (OMHNA)Chicago · 2 sites	-	6	7	Decision makers
675	University Dermatology and Vein ClinicHinsdale · 6 sites	-	6	7	Decision makers
676	Aspirus Langlade HospitalChicago · 12 sites	Parent on file	6	6	Decision makers
677	Aspirus Stanley Hospital and ClinicsChicago · 3 sites	Parent on file	6	6	Decision makers
678	Camelot Radiology AssociatesRockford · 24 sites	-	6	6	Decision makers
679	Central Eye CareArlington Heights · 4 sites	-	6	6	Decision makers
680	Consolidated Pathology Consultants (CPC Pathology)Lake Forest · 1 site	Parent on file	6	6	Decision makers
681	Cook Radiation OncologyChicago · 3 sites	Parent on file	6	6	Decision makers
682	Hand to Shoulder AssociatesArlington Heights · 1 site	Parent on file	6	6	Decision makers
683	Humayun's, SCChicago · 1 site	Parent on file	6	6	Decision makers
684	Illinois Urogynecology LtdPark Ridge · 2 sites	-	6	6	Decision makers
685	Kidney & Hypertension AssociatesEvergreen Park · 9 sites	-	6	6	Decision makers
686	Lake Shore DermatologyPark City · 2 sites	-	6	6	Decision makers
687	Maryville Radiology GroupMaryville · 4 sites	Parent on file	6	6	Decision makers
688	Midwest Retina Consultants SCDes Plaines · 3 sites	-	6	6	Decision makers
689	Northwest Rheumatology SpecialistsElk Grove Village · 2 sites	-	6	6	Decision makers
690	OB/GYN Health AssociatesOrland Park · 2 sites	-	6	6	Decision makers
691	Pacific Vein CareMchenry · 3 sites	-	6	6	Decision makers
692	Pulse Urgent Care & Vein CenterNaperville · 2 sites	Parent on file	6	6	Decision makers
693	Retina AssociatesElmhurst · 1 site	-	6	6	Decision makers
694	Rosin EyecareNorthbrook · 4 sites	Parent on file	6	6	Decision makers
695	Sch Laboratory PhysiciansChicago · 2 sites	-	6	6	Decision makers
696	Simpson Eye Physicians & SurgeonsWest Dundee · 1 site	-	6	6	Decision makers
697	Summit Center for HealthOakbrook Terrace · 2 sites	-	6	6	Decision makers
698	Thorek Memorial HospitalChicago · 5 sites	Parent on file	6	6	Decision makers
699	Touhy Diagnostic At HomeDes Plaines · 1 site	-	6	6	Decision makers
700	University Retina and Macula AssociatesOak Forest · 6 sites	-	6	6	Decision makers

Showing 651 to 700 of 4,250 medical groups in Illinois

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

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