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, 451 to 500
#	Medical group	Parent organization	Physicians	HCPs	Decision makers
451	Rockford Urological Associates, Ltd.Rockford · 2 sites	-	10	15	Decision makers
452	Northwestern Women's Health AssociatesChicago · 1 site	-	10	13	Decision makers
453	RML Specialty HospitalHinsdale · 1 site	Parent on file	10	13	Decision makers
454	Aspirus Divine Savior HospitalChicago · 5 sites	Parent on file	10	11	Decision makers
455	Family Care AssociatesChicago · 2 sites	-	10	11	Decision makers
456	Howard Young Medical CenterChicago · 1 site	Parent on file	10	11	Decision makers
457	North Shore Center for Medical AestheticsNorthbrook · 3 sites	-	10	11	Decision makers
458	Aspirus Pulmonary & Critical CareChicago · 48 sites	Parent on file	10	10	Decision makers
459	Associated Laboratory PhysiciansHarvey · 2 sites	Parent on file	10	10	Decision makers
460	Covenant Medical GroupGlenview · 1 site	-	10	10	Decision makers
461	Northwest Hospitalist PhysiciansChicago · 13 sites	-	10	10	Decision makers
462	RML Specialty HospitalChicago · 2 sites	Parent on file	10	10	Decision makers
463	JosselynNorthbrook · 8 sites	Parent on file	9	144	Decision makers
464	Illinois Eye InstituteChicago · 4 sites	Parent on file	9	118	Decision makers
465	Midwest Orthopaedic ConsultantsOrland Park · 6 sites	-	9	43	Decision makers
466	Top Medical Consultants PCGlenview · 5 sites	-	9	43	Decision makers
467	Rural Health, Inc.Anna · 5 sites	Parent on file	9	40	Decision makers
468	ThresholdsChicago · 64 sites	Parent on file	9	39	Decision makers
469	Anesthesia Associates Of Southern Illinois Surgery CenterMount Vernon · 3 sites	-	9	37	Decision makers
470	Beloved Community Family Wellness CenterChicago · 4 sites	Parent on file	9	34	Decision makers
471	Primary Care JolietJoliet · 3 sites	-	9	34	Decision makers
472	SIH Logan Primary Care HerrinHerrin · 4 sites	Parent on file	9	32	Decision makers
473	Orthopaedic Center of Southern Illinois (OCOSI)Mount Vernon · 5 sites	-	9	28	Decision makers
474	Suburban OrthopaedicsBartlett · 4 sites	-	9	26	Decision makers
475	Central Counties Health CentersSpringfield · 3 sites	Parent on file	9	25	Decision makers
476	Midland & Riverside OrthopedicsChicago · 10 sites	Parent on file	9	23	Decision makers
477	HSHS Medical GroupSpringfield · 2 sites	Parent on file	9	21	Decision makers
478	Beyond Wound CareSchaumburg · 2 sites	-	9	20	Decision makers
479	ENT Surgical ConsultantsJoliet · 3 sites	-	9	20	Decision makers
480	Joint Relief InstituteOrland Park · 3 sites	-	9	20	Decision makers
481	Chicago Wound CarePark Ridge · 2 sites	Parent on file	9	18	Decision makers
482	Human Service Center of PeoriaPeoria · 10 sites	Parent on file	9	18	Decision makers
483	Southwest Urgent CareEvergreen Park · 3 sites	Parent on file	9	18	Decision makers
484	IMAN Health CenterChicago · 3 sites	Parent on file	9	17	Decision makers
485	Massac Memorial HospitalMetropolis · 4 sites	Parent on file	9	17	Decision makers
486	Grand Prairie ServicesTinley Park · 17 sites	Parent on file	9	15	Decision makers
487	Hinsdale Behavioral Health ClinicHinsdale · 3 sites	Parent on file	9	15	Decision makers
488	Rush Oak Park Physicians GroupOak Park · 2 sites	Parent on file	9	15	Decision makers
489	Specialty Care ENTElgin · 6 sites	Parent on file	9	15	Decision makers
490	Deerfield Dermatology AssociatesDeerfield · 3 sites	-	9	14	Decision makers
491	Comprehensive Urologic CareLake Barrington · 7 sites	-	9	13	Decision makers
492	Family First Medical GroupMokena · 2 sites	-	9	12	Decision makers
493	Fullerton Surgery CenterChicago · 1 site	Parent on file	9	12	Decision makers
494	Neuropsychiatric ServicesChicago · 4 sites	-	9	12	Decision makers
495	Catalyst Anesthesia GroupChicago · 2 sites	Parent on file	9	11	Decision makers
496	CSC Steil DermatologyHinsdale · 2 sites	-	9	11	Decision makers
497	Faith Medical & Gastroenterology CenterAddison · 4 sites	-	9	11	Decision makers
498	Ignite Hospitalists, LLCAurora · 1 site	-	9	11	Decision makers
499	Advanced Heart GroupHarvey · 2 sites	-	9	10	Decision makers
500	DuPage Eye Surgery CenterWheaton · 2 sites	-	9	10	Decision makers

Showing 451 to 500 of 4,250 medical groups in Illinois

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

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