HealthcareDiscovery.AI / Doctors / Illinois / Chicago

Doctors in Chicago, Illinois

Data updated monthly · Last refresh September 2026

20,778 licensed providers practice in Chicago across 231 specialties, and 32% received drug or device company payments in 2025. Listings are drawn from federal public records and are not endorsements.

20,778providers
231specialties
32%with industry payments

Specialties in Chicago

Common questions

How many doctors practice in Chicago, Illinois?

20,778 licensed providers with active NPI records list a practice address in Chicago, according to federal NPPES data refreshed monthly.

How many doctors in Chicago received drug or device company payments?

6,588 of 20,778 providers in Chicago (32%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.

Where does this data come from?

Provider records come from the federal NPPES registry and CMS Doctors and Clinicians files. Payment figures come from the CMS Open Payments program for calendar year 2025. The directory refreshes monthly.

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Sources: NPPES (CMS), Doctors and Clinicians national files, CMS Open Payments 2025. Updated monthly. Records are public federal data and are not verified credentials, licensure checks, or endorsements. This directory is informational and not medical advice. How we build this directory.