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, 151 to 200
#	Medical group	Parent organization	Physicians	HCPs	Decision makers
151	Heartland Health ServicesPeoria · 11 sites	Parent on file	45	75	Decision makers
152	EM StrategiesNew Lenox · 8 sites	Parent on file	45	65	Decision makers
153	Windy City AnesthesiaFrankfort · 17 sites	Parent on file	44	137	Decision makers
154	UChicago Medicine AdventHealth Medical Group Heart & Vascular at HinsdaleHinsdale · 14 sites	Parent on file	44	69	Decision makers
155	Ingalls Urgent AidCalumet City · 5 sites	Parent on file	43	81	Decision makers
156	Carlinville Area Hospital & ClinicsCarlinville · 5 sites	Parent on file	41	80	Decision makers
157	Mason District HospitalHavana · 3 sites	Parent on file	41	60	Decision makers
158	Critical Care Physicians of IllinoisArlington Heights · 12 sites	-	41	48	Decision makers
159	Sound PhysiciansQuincy · 10 sites	Parent on file	41	45	Decision makers
160	UChicago Medicine AdventHealth HinsdaleHinsdale · 5 sites	Parent on file	41	44	Decision makers
161	Memorial Hospital, Carthage, IllinoisCarthage · 13 sites	Parent on file	40	74	Decision makers
162	Midwest Emergency Department Services (MEDS)Sparta · 9 sites	Parent on file	40	47	Decision makers
163	Radiology Subspecialists of Northern Illinois, LLCGeneva · 12 sites	-	40	44	Decision makers
164	Encore Anesthesia GroupOak Park · 12 sites	Parent on file	39	69	Decision makers
165	Affiliated OncologistsOak Lawn · 13 sites	-	39	59	Decision makers
166	KSB HospitalDixon · 3 sites	Parent on file	39	58	Decision makers
167	HSHS Medical GroupSpringfield · 7 sites	Parent on file	39	48	Decision makers
168	Anesthesia AssociatesAurora · 14 sites	Parent on file	38	89	Decision makers
169	Emergency Services Midwest SCBelleville · 16 sites	Parent on file	38	70	Decision makers
170	St. Bernard HospitalChicago · 5 sites	Parent on file	38	57	Decision makers
171	Schwab RehabilitationChicago · 20 sites	Parent on file	38	55	Decision makers
172	Vohra Wound PhysiciansArlington Heights · 37 sites	Parent on file	38	48	Decision makers
173	Rush Oak Park Physicians GroupOak Park · 7 sites	Parent on file	38	40	Decision makers
174	The Friedell ClinicChicago · 2 sites	Parent on file	38	38	Decision makers
175	Community PhysiciansOakbrook Terrace · 8 sites	Parent on file	37	87	Decision makers
176	PrimeCare Community HealthChicago · 10 sites	Parent on file	37	86	Decision makers
177	Integritas ProvidersCarbondale · 8 sites	Parent on file	37	64	Decision makers
178	Carle BroMenn Medical CenterNormal · 6 sites	Parent on file	37	57	Decision makers
179	Wheaton Eye ClinicWheaton · 4 sites	-	37	44	Decision makers
180	Wabash General HospitalMount Carmel · 12 sites	Parent on file	36	92	Decision makers
181	OSF Saint Anthony Medical CenterPeoria · 14 sites	Parent on file	36	72	Decision makers
182	Integrated Rehab ConsultantsChicago · 234 sites	Parent on file	36	60	Decision makers
183	Touchette Regional HospitalCahokia Heights · 6 sites	Parent on file	36	59	Decision makers
184	Hillsboro HealthHillsboro · 4 sites	Parent on file	36	48	Decision makers
185	DuPage Emergency PhysiciansDowners Grove · 4 sites	-	36	47	Decision makers
186	Illinois Dermatology InstituteSkokie · 19 sites	-	35	56	Decision makers
187	Heart Care Centers of IllinoisPalos Park · 14 sites	-	35	49	Decision makers
188	Rush Oak Park Physicians Group Adult MedicineOak Park · 5 sites	Parent on file	35	44	Decision makers
189	HSHS Medical GroupSpringfield · 3 sites	Parent on file	34	50	Decision makers
190	Town Square AnesthesiaWoodstock · 11 sites	-	33	70	Decision makers
191	Taylorville Memorial HospitalTaylorville · 2 sites	Parent on file	33	69	Decision makers
192	Midwest Cardiovascular InstituteNaperville · 6 sites	-	33	59	Decision makers
193	Emergency Medical Associates of Palos, Ltd.Palos Heights · 11 sites	-	33	52	Decision makers
194	Midwest Pulmonary, Critical Care, & Sleep ConsultantsPalos Heights · 8 sites	Parent on file	33	49	Decision makers
195	St. Bernard HospitalChicago · 6 sites	Parent on file	33	38	Decision makers
196	Advanced RadiologyRock Island · 58 sites	Parent on file	33	33	Decision makers
197	Clay County Hospital and ClinicsFlora · 5 sites	Parent on file	32	78	Decision makers
198	Gateway Regional Medical CenterGranite City · 15 sites	Parent on file	32	73	Decision makers
199	Midwest Cardiovascular InstituteNaperville · 4 sites	-	32	65	Decision makers
200	CIMPAR, S.C.Oak Park · 5 sites	-	32	61	Decision makers

Showing 151 to 200 of 4,250 medical groups in Illinois

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

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