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Obstetrics & Gynecology in Oak Brook, Illinois

Data updated monthly · Last refresh September 2026

5 Obstetrics & Gynecology providers practice in Oak Brook. Listings are drawn from federal public records and are not endorsements.

Obstetrics & Gynecology providers in Oak Brook

Listed alphabetically. Payment figures come from the federal Open Payments program, which requires drug and device companies to report what they pay physicians for consulting, speaking, meals, travel and royalties. A disclosed payment is a financial relationship, not evidence of wrongdoing, and many totals reflect a single meal. Figures cover calendar year 2025.

Dr. Daniel Rostein, M.D.
Oak Brook, IL · $65 in drug and device payments (2025) · (630) 472-9100
Dr. Karoly Kismartoni, MD
Oak Brook, IL · No drug or device payments recorded (2025) · (773) 844-1054
Dr. Kee Kim, M.D.
Oak Brook, IL · No drug or device payments recorded (2025) · (708) 299-4932
Dr. Liloan Cheng, M.D.
Oak Brook, IL · No drug or device payments recorded (2025) · (630) 655-3931
Dr. Mario Yu, MD
Oak Brook, IL · No drug or device payments recorded (2025) · (630) 629-8282

Conditions Obstetrics & Gynecology providers in Oak Brook, Illinois commonly treat

Patients often search by condition rather than specialty. These are conditions typically managed by Obstetrics & Gynecology providers. Individual practices vary, so confirm with the provider before booking.

Common questions

How many Obstetrics & Gynecology providers are in Oak Brook, Illinois?

There are 5 Obstetrics & Gynecology providers with active NPI records practicing in Oak Brook, according to federal NPPES data refreshed monthly.

What conditions do Obstetrics & Gynecology providers in Oak Brook treat?

Obstetrics & Gynecology providers in Oak Brook commonly treat pregnancy care, endometriosis, fibroids, PCOS, menopause and related conditions. Individual practices vary, so confirm with the provider before booking.

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.

All specialties in Oak Brook Obstetrics & Gynecology across Illinois

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.