HealthcareDiscovery.AI / Doctors / Illinois / Crystal Lake

Doctors in Crystal Lake, Illinois

Data updated monthly · Last refresh September 2026

210 licensed providers practice in Crystal Lake across 45 specialties, and 31% received drug or device company payments in 2025. Listings are drawn from federal public records and are not endorsements.

210providers
45specialties
31%with industry payments

Specialties in Crystal Lake

Common questions

How many doctors practice in Crystal Lake, Illinois?

210 licensed providers with active NPI records list a practice address in Crystal Lake, according to federal NPPES data refreshed monthly.

How many doctors in Crystal Lake received drug or device company payments?

66 of 210 providers in Crystal Lake (31%) 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

All Illinois specialties Ask Zach for help choosing

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.