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, 1,051 to 1,100
#	Medical group	Parent organization	Physicians	HCPs	Decision makers
1051	Downers Grove Eye CenterDowners Grove · 2 sites	-	3	5	Decision makers
1052	Elite Med Urgent CareHickory Hills · 1 site	Parent on file	3	5	Decision makers
1053	Grand Vein SpecialistsChicago · 3 sites	-	3	5	Decision makers
1054	Ideal Eye SurgeryO'Fallon · 6 sites	-	3	5	Decision makers
1055	Maryville Women's CenterGlen Carbon · 2 sites	-	3	5	Decision makers
1056	Mid-Illinois Hematology and OncologyNormal · 4 sites	-	3	5	Decision makers
1057	North Branch Dermatology LlcNiles · 2 sites	-	3	5	Decision makers
1058	North Suburban Family MedicineDes Plaines · 2 sites	-	3	5	Decision makers
1059	Northwestern Specialists in Plastic SurgeryChicago · 1 site	-	3	5	Decision makers
1060	Palos InternistsOak Lawn · 2 sites	-	3	5	Decision makers
1061	4D HealthwareChicago · 1 site	-	3	4	Decision makers
1062	Allergy, Asthma and Sinus CentersChicago · 4 sites	-	3	4	Decision makers
1063	BG Medical CenterBuffalo Grove · 1 site	Parent on file	3	4	Decision makers
1064	Eye Specialists of Chicago & Highland ParkChicago · 2 sites	-	3	4	Decision makers
1065	Family Practice Center of Palatine & Immediate CarePalatine · 1 site	Parent on file	3	4	Decision makers
1066	Heart and Vascular Center of Lake CountyGurnee · 3 sites	-	3	4	Decision makers
1067	I-Squared Medical GroupOak Park · 2 sites	-	3	4	Decision makers
1068	Illinois Medical Care LtdChicago · 3 sites	Parent on file	3	4	Decision makers
1069	Illinois Orthopedic InstituteJoliet · 2 sites	-	3	4	Decision makers
1070	Imagine HealthcareChicago · 1 site	-	3	4	Decision makers
1071	JR Nephrology and AssociatesOak Lawn · 1 site	-	3	4	Decision makers
1072	Medical Care Center of Lake VillaLake Villa · 1 site	-	3	4	Decision makers
1073	Mercy Clinic Oncology and Hematology - AndersonMaryville · 3 sites	Parent on file	3	4	Decision makers
1074	Midwest Pulmonary AssociatesLombard · 1 site	-	3	4	Decision makers
1075	Midwest Vascular & Pain SpecialistsWestchester · 4 sites	-	3	4	Decision makers
1076	Nihon ClinicArlington Heights · 1 site	-	3	4	Decision makers
1077	Northwestern Neurosurgical AssociatesChicago · 1 site	-	3	4	Decision makers
1078	Oncology of NorthshoreRolling Meadows · 1 site	-	3	4	Decision makers
1079	Pain Consultants Of Central IllinoisDecatur · 2 sites	-	3	4	Decision makers
1080	Physician Partners in Comprehensive Weight ManagementBurr Ridge · 2 sites	-	3	4	Decision makers
1081	Physician's Choice WellnessMount Zion · 2 sites	-	3	4	Decision makers
1082	Prairie State Pulmonary & Sleep ConsultantsOlympia Fields · 1 site	-	3	4	Decision makers
1083	Progressive Medical CenterAddison · 2 sites	-	3	4	Decision makers
1084	Rheumatic Disease Center Physicians, S.C.Des Plaines · 1 site	-	3	4	Decision makers
1085	Rudyard Smith MD and Associates, SCChicago · 3 sites	Parent on file	3	4	Decision makers
1086	Rx Pain Management ClinicChicago · 2 sites	Parent on file	3	4	Decision makers
1087	Schaumburg Immediate CareSchaumburg · 1 site	-	3	4	Decision makers
1088	Staunton ClinicStaunton · 1 site	-	3	4	Decision makers
1089	Suburban Women's Health SpecialistsElgin · 2 sites	-	3	4	Decision makers
1090	Talcott Primary CareChicago · 1 site	-	3	4	Decision makers
1091	The Gynecology Institute of ChicagoChicago · 1 site	-	3	4	Decision makers
1092	The Woods Women's GroupPark City · 1 site	-	3	4	Decision makers
1093	University Eye SpecialistsChicago · 3 sites	-	3	4	Decision makers
1094	Yarkony Rehabilitation AssociatesElgin · 1 site	Parent on file	3	4	Decision makers
1095	Advocate Medical Group General Surgery - GurneeGurnee · 1 site	Parent on file	3	3	Decision makers
1096	All Care Urgent Medical CenterChicago · 1 site	Parent on file	3	3	Decision makers
1097	Alliance Immediate & Primary CareChicago · 1 site	-	3	3	Decision makers
1098	Been Facial PlasticsGeneva · 1 site	-	3	3	Decision makers
1099	Bush and AssociatesFrankfort · 2 sites	-	3	3	Decision makers
1100	Des Plaines Eye Physicians and SurgeonsDes Plaines · 1 site	-	3	3	Decision makers

Showing 1,051 to 1,100 of 4,250 medical groups in Illinois

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

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