Gynecologic Oncology in Grand Rapids, Michigan
Data updated monthly · Last refresh September 2026
8 Gynecologic Oncology providers practice in Grand Rapids. Listings are drawn from federal public records and are not endorsements.
Gynecologic Oncology providers in Grand Rapids
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. Charles Harrison, MDGrand Rapids, MI · No drug or device payments recorded (2025) ·
(616) 486-6000 Dr. Christopher Hummel, D.O.Grand Rapids, MI · No drug or device payments recorded (2025) · Telehealth ·
(616) 486-6000 Dr. Connie CaoGrand Rapids, MI · No drug or device payments recorded (2025) ·
(616) 486-6000 Dr. David ShalowitzGrand Rapids, MI · $742 in drug and device payments (2025) ·
(616) 486-6000 Dr. Gordon Downey, M.D.Grand Rapids, MI · No drug or device payments recorded (2025) ·
(616) 486-6000 Dr. Leigh Seamon, D.O.Grand Rapids, MI · $127 in drug and device payments (2025) · Telehealth ·
(616) 486-6000 Dr. Mae ZakhourGrand Rapids, MI · $2,585 in drug and device payments (2025) · Telehealth ·
(616) 486-6000 Dr. Margaret Whicker, M.D.Grand Rapids, MI · $54 in drug and device payments (2025) ·
(616) 685-5600 Common questions
How many Gynecologic Oncology providers are in Grand Rapids, Michigan?There are 8 Gynecologic Oncology providers with active NPI records practicing in Grand Rapids, according to federal NPPES data refreshed monthly.
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 Grand Rapids Gynecologic Oncology across Michigan
