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, 1,951 to 2,000
#	Medical group	Parent organization	Physicians	HCPs	Decision makers
1951	Crestwood Associated Medical CenterCrestwood · 1 site	-	1	2	Decision makers
1952	Dardur Medical GroupHomewood · 1 site	-	1	2	Decision makers
1953	David K. Zich, MD, SCChicago · 1 site	-	1	2	Decision makers
1954	Decatur Neurological AssociatesDecatur · 1 site	-	1	2	Decision makers
1955	DeForest MedicalBeecher · 1 site	-	1	2	Decision makers
1956	DeKalb County Health DepartmentDekalb · 1 site	Parent on file	1	2	Decision makers
1957	Diabetes & Endocrinology Group, SCBerwyn · 2 sites	Parent on file	1	2	Decision makers
1958	Divyang A. Joshi, MD, PCElgin · 2 sites	-	1	2	Decision makers
1959	Doctor for LifeBuffalo Grove · 1 site	-	1	2	Decision makers
1960	DuPage Family MedicineNaperville · 1 site	-	1	2	Decision makers
1961	Dy Dermatology CenterGlenview · 1 site	-	1	2	Decision makers
1962	EA Devassy MD & AssociatesLockport · 1 site	-	1	2	Decision makers
1963	Ear Nose Throat And Allergy Clinic, S.C.Geneva · 2 sites	-	1	2	Decision makers
1964	EDM Consultant Services LtdMelrose Park · 1 site	Parent on file	1	2	Decision makers
1965	Elgin Endocrinology & Metabolic CenterElgin · 1 site	-	1	2	Decision makers
1966	Ellie Mental Health - Lincolnwood, ILLincolnwood · 1 site	Parent on file	1	2	Decision makers
1967	Excel Kidney CareChicago · 1 site	-	1	2	Decision makers
1968	Expert Kidney MDElk Grove Village · 3 sites	-	1	2	Decision makers
1969	Eye Care Center of Lake CountyGurnee · 1 site	-	1	2	Decision makers
1970	Family Health Center of Plainfield & Med SpaPlainfield · 1 site	-	1	2	Decision makers
1971	Family Home Health NetworkAddison · 1 site	Parent on file	1	2	Decision makers
1972	First Care Express CareSwansea · 1 site	-	1	2	Decision makers
1973	FirstCare Urgent Care CenterBedford Park · 1 site	Parent on file	1	2	Decision makers
1974	Forefront Adult & Pediatric CareMokena · 1 site	-	1	2	Decision makers
1975	Fox Valley OrthopedicsGeneva · 1 site	Parent on file	1	2	Decision makers
1976	Fred J. Halloran, MD, SCHuntley · 1 site	Parent on file	1	2	Decision makers
1977	Fullerton Surgery CenterChicago · 1 site	Parent on file	1	2	Decision makers
1978	GAH Pain ClinicBloomington · 1 site	Parent on file	1	2	Decision makers
1979	Gastroenterology Care of Southern IllinoisHerrin · 2 sites	-	1	2	Decision makers
1980	Geetha Reddy MD FACCLibertyville · 1 site	-	1	2	Decision makers
1981	Geriatric Professional ServicesNaperville · 1 site	-	1	2	Decision makers
1982	Global Health Care, SCPark Ridge · 1 site	Parent on file	1	2	Decision makers
1983	GO GastroenterologyChicago · 1 site	-	1	2	Decision makers
1984	Greenbrook Mental Wellness Center Fairview HeightsFairview Heights · 2 sites	Parent on file	1	2	Decision makers
1985	Greenleaf Medical AssociatesPark City · 1 site	-	1	2	Decision makers
1986	Guardian Headache and Pain Management InstituteBloomington · 1 site	-	1	2	Decision makers
1987	Heal At HomeTeutopolis · 1 site	-	1	2	Decision makers
1988	Heal At Home LLCSouth Elgin · 1 site	Parent on file	1	2	Decision makers
1989	Healing Hands Resource Center (HHRC)Chicago · 1 site	Parent on file	1	2	Decision makers
1990	Healing Touch Medical CareBloomingdale · 1 site	-	1	2	Decision makers
1991	HealthONE Medical CenterBloomingdale · 1 site	-	1	2	Decision makers
1992	Heartland Behavioral HealthPeoria · 1 site	-	1	2	Decision makers
1993	Heyer Devarapalli, MD, SCArlington Heights · 1 site	-	1	2	Decision makers
1994	Highland Park OB-GYN AssociatesNorthbrook · 1 site	-	1	2	Decision makers
1995	Hobson Meadows Family MedicineNaperville · 1 site	-	1	2	Decision makers
1996	Home Health MedicalOak Lawn · 1 site	Parent on file	1	2	Decision makers
1997	Hospitalist Consultants Group S.C.Lisle · 1 site	-	1	2	Decision makers
1998	Iatreia Mental HealthJoliet · 1 site	-	1	2	Decision makers
1999	Icon PsychologiesNaperville · 1 site	-	1	2	Decision makers
2000	Illinois Adult HealthcareElk Grove Village · 1 site	Parent on file	1	2	Decision makers

Showing 1,951 to 2,000 of 4,250 medical groups in Illinois

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

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