HealthcareDiscovery.AI / Doctors / Illinois / Oak Brook

Doctors in Oak Brook, Illinois

Data updated monthly · Last refresh September 2026

185 licensed providers practice in Oak Brook across 44 specialties, and 21% received drug or device company payments in 2025. Listings are drawn from federal public records and are not endorsements.

185providers
44specialties
21%with industry payments

Specialties in Oak Brook

Common questions

How many doctors practice in Oak Brook, Illinois?

185 licensed providers with active NPI records list a practice address in Oak Brook, according to federal NPPES data refreshed monthly.

How many doctors in Oak Brook received drug or device company payments?

38 of 185 providers in Oak Brook (21%) 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.

Other cities in Illinois

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Try a city like Tucson, a zip like 85016, or a specialty like psychiatry. For a doctor by name, use the full search.
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.