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