Internists in Illinois
- Internists
- 7,433
- Linked to a hospital or group
- 5,109
- Hospitals with an internist
- 188
- Medical groups with an internist
- 704
- Cities
- 297
There are 7,433 internists in Illinois. Dreyer Medical Clinic (Advocate Medical Group) has the most, 425, and Northwestern Medicine Central DuPage Hospital has the most affiliated internists, 539. Chicago is home to 2,817, and 40% finished medical school 30 or more years ago.
Find work emails and mobile numbers for all 7,433 Illinois internists
Validated work emails and mobile numbers for Illinois internists, found through healthcare waterfall enrichment, with a free Dmand AI account.
Illinois internists, listed A to Z by last name
Each internist on the list has internal medicine as their primary specialty and an Illinois practice address. The list shows the NPI and city, and how many hospitals and medical groups each one practices with. A free account names every hospital and group, with validated contacts.
Filter this list with a free account
Sort and filter all 7,433 Illinois internists by city, hospital, medical group, the EHR they use and Medicare volume in Dmand AI.
Showing 1 to 10 of 5,652 Illinois internists
The list shows the 5,652 internists with a public profile. The other 1,781 are counted in the total and searchable with a free account.
Sources: NPPES NPI Registry (CMS) and Dmand AI Affiliation Data
For health IT teams
Dmand AI has the EHR for 6,753 of 7,433 Illinois internists, at their hospital and their practice. Filter by Epic, Oracle Health, MEDITECH, athenahealth and more, then reach them with validated work emails and mobile numbers.
Dreyer Medical Clinic (Advocate Medical Group) has the most internists in Illinois, with 425
Endeavor Health Medical Group is second with 359, and Northwestern Medical Faculty Foundation third with 359. Counts are internists with an Illinois address linked to each group.
Sources: Dmand AI Affiliation Data and Dmand AI Org Hierarchy Data
Northwestern Medicine Central DuPage Hospital has the most affiliated internists in Illinois, with 539
Northwestern Memorial Hospital in Chicago is second with 463, and Evanston Hospital third with 452. Illinois internists are affiliated with 188 hospitals in all.
See every hospital and group for each Illinois internist
Each public profile names one place an internist practices. A free account shows all of them, with the employer, the EHR and validated contacts.
Source: Dmand AI Affiliation Data
Chicago has the most internists in Illinois, with 2,817
More Illinois cities with internists
Internists practice in 297 Illinois cities. Every city with 10 or more has its own page.
Source: NPPES NPI Registry (CMS)
Most Illinois internists practice at a hospital: 4,183 of the 4,988 with a mapped site
2,734 also practice at a medical group site, and 1,281 at home health agencies. An internist can practice at several kinds of site, so the shares overlap.
Illinois internists by site of care
- Hospitals4,183
- Medical group practices2,734
- Home health agencies1,281
- Physician offices568
- Hospices445
Sources: Dmand AI Affiliation Data and Dmand AI Practice Data
40% of Illinois internists finished medical school 30 or more years ago
1,622 of the 4,072 Illinois internists with a graduation year on file. 767 graduated in the last 10 years.
Physicians by years since medical school
- Under 10 years ago767
- 10 to 19 years ago912
- 20 to 29 years ago771
- 30 to 39 years ago878
- 40 or more years ago744
Source: Dmand AI Professional Profile Data
Every Illinois internist profile shows current hospitals and groups, Medicare activity and NPI details
- Primary practiceThe main place they practice, with its type and cityOn every profile
- Every site of careEach hospital, clinic and group where they practice nowWith a free account
- EmployerThe organization they work for, when one is on fileWith a free account
- Medicare servicesServices and procedure codes billed to Medicare, from CMSOn every profile
- Medicare Part D prescribingClaims and drug costs from Part D, from CMSOn every profile
- Industry paymentsPayments from drug and device makers, from CMS Open PaymentsOn every profile
- Publications and clinical trialsResearch papers and trials linked to the NPI, when on fileOn every profile
- Licenses and graduation yearState license numbers and medical school graduation yearOn every profile
- NPI detailsNPI, enumeration date, primary taxonomy and practice addressOn every profile
- Work email and mobile numberFound on request through healthcare waterfall enrichment, then validatedWith a free account
- EHR in useThe EHR at each site where they practiceWith a free account
- Colleagues at each siteThe clinicians they work with at each hospital and groupWith a free account
Free account: 30 days free, self-serve, no credit card.
Sources: NPPES NPI Registry (CMS), Medicare Physician & Other Practitioners (CMS), Open Payments (CMS) and Dmand AI Affiliation Data
Sources for the Illinois internist directory
| Data on this page | Source |
|---|---|
| HCPs, types and specialties | NPPES NPI Registry (CMS) and Dmand AI Professional Profile Data |
| Sites of care, hospitals and medical groups | Dmand AI Affiliation Data |
| Medical school graduation year | Dmand AI Professional Profile Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
Internists are HCPs whose primary specialty is internal medicine (taxonomy code 207R00000X), with an active NPI and an Illinois practice address.
FAQ
Frequently asked questions about internists in Illinois
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
How many internists are in Illinois?
7,433 internists have an active NPI, an Illinois practice address and internal medicine (taxonomy code 207R00000X) as their primary specialty. 5,109 of them are linked to a hospital or medical group.
Which Illinois medical groups have the most internists?
Dreyer Medical Clinic (Advocate Medical Group), with 425, followed by Endeavor Health Medical Group with 359 and Northwestern Medical Faculty Foundation with 359.
Which Illinois hospitals have the most internists?
Northwestern Medicine Central DuPage Hospital, with 539 affiliated internists, followed by Northwestern Memorial Hospital with 463 and Evanston Hospital with 452.
Which Illinois cities have the most internists?
Chicago, with 2,817, followed by Evanston (281) and Maywood (221). Internists practice in 297 Illinois cities in all.
How many Illinois internists finished medical school 30 or more years ago?
1,622 of the 4,072 with a graduation year on file, or 40%. 767 graduated in the last 10 years.
What is the taxonomy code for internal medicine?
207R00000X is the NPPES taxonomy code for internal medicine. Sub-specialties with their own code are counted on their own lists.
How can I contact internists in Illinois?
Dmand AI finds validated work emails, mobile numbers and practice phone numbers for internists in Illinois through healthcare waterfall enrichment, matched to the site where each one practices now. They are available with a free Dmand AI account: 30 days free, self-serve, no credit card.
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Search 7,433 Illinois internists by hospital, medical group and the EHR they use, with validated work emails and mobile numbers.
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