Updated October 2026

Medical groups in Chicago, IL

Medical group directory
Chicago, Illinois

Medical groups: 691
Multi-specialty: 167
Single-specialty: 524
More than one site: 333
100+ physicians: 14

There are 691 medical groups in Chicago with a Medicare PAC ID. Northwestern Medical Faculty Foundation is the largest, with 3,118 Illinois physicians, followed by University of Illinois Physicians Group (UIPG) with 1,463. 66% of Chicago groups are independent.

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Northwestern Medical Faculty Foundation is the largest medical group in Chicago, with 3,118 physicians

Ranked by physicians with an Illinois address linked to each group based in Chicago. University of Illinois Physicians Group (UIPG) is second with 1,463, and Rush University Internists third with 1,347. 14 Chicago groups have 100 or more physicians.

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Medical groups in Chicago, ranked by physicians
#	Medical group	Parent organization	Physicians	HCPs	Decision makers
1	Northwestern Medical Faculty FoundationChicago · 265 sites	Parent on file	3,118	5,140	Decision makers
2	University of Illinois Physicians Group (UIPG)Chicago · 150 sites	Parent on file	1,463	2,083	Decision makers
3	Rush University InternistsChicago · 133 sites	Parent on file	1,347	2,186	Decision makers
4	John H. Stroger, Jr. Hospital of Cook CountyChicago · 78 sites	Parent on file	1,149	1,572	Decision makers
5	Lurie Children's Medical GroupChicago · 61 sites	Parent on file	956	1,487	Decision makers
6	Sinai Medical GroupChicago · 54 sites	Parent on file	421	609	Decision makers
7	ACCESS Community Health NetworkChicago · 83 sites	Parent on file	219	472	Decision makers
8	Sound PhysiciansChicago · 78 sites	Parent on file	213	270	Decision makers
9	Rush Medical GroupChicago · 35 sites	Parent on file	210	312	Decision makers
10	Erie Family Health CentersChicago · 33 sites	Parent on file	207	364	Decision makers
11	Insight Hospital & Medical Center ChicagoChicago · 16 sites	Parent on file	184	240	Decision makers
12	Saint Anthony HospitalChicago · 30 sites	Parent on file	125	172	Decision makers
13	Community First Medical CenterChicago · 17 sites	Parent on file	122	149	Decision makers
14	Oak Street HealthChicago · 41 sites	Parent on file	115	301	Decision makers
15	Shirley Ryan AbilityLabChicago · 14 sites	Parent on file	95	123	Decision makers
16	Prime Illinois Medical GroupChicago · 107 sites	Parent on file	92	94	Decision makers
17	Lawndale Christian Health CenterChicago · 8 sites	Parent on file	85	182	Decision makers
18	Humboldt Park HealthChicago · 45 sites	Parent on file	83	103	Decision makers
19	Esperanza Health CentersChicago · 14 sites	Parent on file	66	129	Decision makers
20	Friend HealthChicago · 12 sites	Parent on file	66	121	Decision makers
21	University Anesthesiologists, S.C.Chicago · 11 sites	Parent on file	59	156	Decision makers
22	Physicians Immediate CareChicago · 86 sites	Parent on file	57	491	Decision makers
23	Shirley Ryan AbilityLabChicago · 4 sites	Parent on file	54	62	Decision makers
24	Associates in NephrologyChicago · 92 sites	-	52	59	Decision makers
25	Howard Brown HealthChicago · 16 sites	Parent on file	51	153	Decision makers
26	Thorek Memorial HospitalChicago · 7 sites	Parent on file	50	64	Decision makers
27	St. Bernard Hospital Anesthesia DepartmentChicago · 10 sites	Parent on file	50	60	Decision makers
28	Chicago Health Medical GroupChicago · 6 sites	Parent on file	50	59	Decision makers
29	Loretto HospitalChicago · 4 sites	Parent on file	47	56	Decision makers
30	Eye Center PhysiciansChicago · 9 sites	Parent on file	46	46	Decision makers
31	St. Bernard HospitalChicago · 5 sites	Parent on file	38	57	Decision makers
32	Schwab RehabilitationChicago · 20 sites	Parent on file	38	55	Decision makers
33	The Friedell ClinicChicago · 2 sites	Parent on file	38	38	Decision makers
34	PrimeCare Community HealthChicago · 10 sites	Parent on file	37	86	Decision makers
35	Integrated Rehab ConsultantsChicago · 234 sites	Parent on file	36	60	Decision makers
36	St. Bernard HospitalChicago · 6 sites	Parent on file	33	38	Decision makers
37	Clarity ClinicChicago · 8 sites	-	31	233	Decision makers
38	Ambulatory Anesthesiologists of ChicagoChicago · 4 sites	Parent on file	27	34	Decision makers
39	Chicago Family Health CenterChicago · 7 sites	Parent on file	26	62	Decision makers
40	Near North HealthChicago · 15 sites	Parent on file	26	55	Decision makers
41	Illinois Cancer SpecialistsChicago · 6 sites	-	26	34	Decision makers
42	Emergency Physician Staffing Solutions (EPSS)Chicago · 2 sites	Parent on file	25	25	Decision makers
43	MD at HomeChicago · 5 sites	Parent on file	24	117	Decision makers
44	Aspirus Medical GroupChicago · 41 sites	Parent on file	24	27	Decision makers
45	Schwab Rehabilitation HospitalChicago · 3 sites	Parent on file	23	27	Decision makers
46	Addison-Central PathologyChicago · 4 sites	Parent on file	23	24	Decision makers
47	Roseland Community HospitalChicago · 3 sites	Parent on file	22	37	Decision makers
48	University Pathology DiagnosticsChicago · 1 site	Parent on file	21	21	Decision makers
49	The Northwestern Specialists for WomenChicago · 4 sites	Parent on file	20	37	Decision makers
50	Saint Anthony Hospital Emergency DepartmentChicago · 3 sites	Parent on file	20	33	Decision makers

Showing 1 to 10 of 691 medical groups in Chicago

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

Rush University System for Health has the most physicians in Chicago medical groups, with 1,487 across 9 groups

Dmand AI maps every Chicago medical group to its parent organization, up to the health system or platform at the top. 33 parent organizations have two or more Chicago medical groups. Each clinician counts once per parent organization.

Parent organizations with the most Chicago medical groups
#	Parent organization	Chicago groups	Physicians	HCPs
1	Rush University System for HealthAcademic health system	9	1,487	2,427
2	Cook County HealthLocal government	2	1,149	1,572
3	Ann & Robert H. Lurie Children's Hospital of ChicagoHealth system	2	958	1,491
4	Sinai Health SystemHealth system	5	484	698
5	Saint Anthony HospitalHealth system	3	161	227
6	Community First Medical CenterHospital	2	122	149
7	Catholic Health InternationalCatholic health ministry	3	111	142
8	Shirley Ryan AbilityLabHospital	2	97	133
9	Humboldt Park HealthHospital	2	96	130
10	Thorek Memorial HospitalHealth system	4	67	84

Top 10 of 33 parent organizations with two or more Chicago groups

Rush System for HealthAcademic health system · 9 Chicago medical groups
Rush University InternistsMulti-specialty group · 133 sites
Rush Medical GroupMulti-specialty group · 35 sites
7 more Chicago groups and their practice sites

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Source: Dmand AI Org Hierarchy Data

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66% of Chicago medical groups are independent, with no larger parent organization

A group counts as independent when no health system, platform or other organization sits above it in the org hierarchy. Every other group belongs to a larger organization.

Chicago medical groups by ownership

Independent45866%
Health system or hospital8913%
Platform or corporate owner619%
Community or government446%
Other organization396%

Source: Dmand AI Org Hierarchy Data

136 Chicago medical groups practice at a hospital site

Beyond their own offices, groups practice at the sites of care linked to them in the org hierarchy. A group can practice at several kinds of site, so the shares overlap.

Sources: Dmand AI Practice Data and Dmand AI Org Hierarchy Data

Primary care groups are the most common medical groups in Chicago, with 241

Each group is counted once, under its main specialty. Behavioral and mental health groups are second, with 138, and 167 Chicago groups are multi-specialty.

Source: Dmand AI Professional Profile Data

19,538 Illinois HCPs work in Chicago medical groups, 10,386 of them physicians

Each clinician is counted once, across every Chicago group they are linked to. Only clinicians with an Illinois address are counted.

HCPs in Chicago medical groups by type

Physicians (MD, DO)10,38653%
Nurses and nurse practitioners3,98720%
Behavioral health clinicians1,7549%
Physician assistants1,6248%
Therapists (PT and OT)6844%
Other HCPs1,1036%

Source: Dmand AI Affiliation Data

Each Chicago medical group profile shows the parent, sites, clinicians and identifiers

Clinicians and specialtiesA count by specialty and a sample of the group's cliniciansOn every profile
Practice locationsMain site and a sample of practice locations, with a count of the restOn every profile
Medicare Part B paymentsMedicare payments to the group, from CMSOn every profile
Group NPI and Medicare PAC IDIdentifiers for matching records across sourcesOn every profile
Parent organizationThe health system, platform or owner above the groupOn every profile
Every clinician and siteThe full roster and every practice locationWith a free account
Leader and clinician contactsWork emails and mobile numbers, found on request and then validatedWith a free account
EHR used by the group's cliniciansThe EHR in use at the group's sitesWith a free account

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Sources: Doctors and Clinicians National Downloadable File (CMS), Medicare Physician & Other Practitioners (CMS) and Dmand AI Org Hierarchy Data

Sources for the Chicago medical group directory

Sources for the data on this page
Data on this page	Source
Medical groups, specialties and sites	Doctors and Clinicians National Downloadable File (CMS) and Dmand AI Professional Profile Data
Parent organizations and independence	Dmand AI Org Hierarchy Data
Physicians and HCPs	Dmand AI Affiliation Data
Group NPI and PAC ID	NPPES NPI Registry (CMS) and Doctors and Clinicians National Downloadable File (CMS)

Data last refreshed October 2026Report an inaccuracy Remove my information

The directory lists groups based in Chicago with a Medicare PAC ID.

FAQ

Frequently asked questions about medical groups in Chicago

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

How many medical groups are in Chicago?

There are 691 medical groups based in Chicago with a Medicare PAC ID: 167 multi-specialty and 524 single-specialty. 333 of them have more than one site.

What is the largest medical group in Chicago?

Northwestern Medical Faculty Foundation, with 3,118 physicians and 5,140 HCPs with an Illinois address. University of Illinois Physicians Group (UIPG) is second with 1,463, and Rush University Internists is third with 1,347.

Which health system has the most medical groups in Chicago?

By physicians, Rush University System for Health, with 1,487 across 9 groups, followed by Cook County Health with 1,149 and Ann & Robert H. Lurie Children's Hospital of Chicago with 958.

How many Chicago medical groups are independent?

458, or 66%, have no larger parent organization in the Dmand AI org hierarchy. 89 belong to a health system or hospital and 61 to a physician platform or corporate owner.

How many Chicago medical groups practice at a hospital?

136 Chicago groups practice at a hospital site linked to them in the Dmand AI org hierarchy.

How do I find a medical group's NPI or PAC ID?

Each medical group profile lists the group NPI and Medicare PAC ID at the top, with the main address and phone number. The NPI comes from the NPPES NPI Registry and the PAC ID from CMS Medicare enrollment.

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