Obstetrics & Gynecology in Union City, California
Data updated monthly · Last refresh September 2026
14 Obstetrics & Gynecology providers practice in Union City. Listings are drawn from federal public records and are not endorsements.
Obstetrics & Gynecology providers in Union City
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. Abigail Justiss, MDUnion City, CA · No drug or device payments recorded (2025) ·
(510) 675-4010 Dr. Audrey Toda, M.D.Union City, CA · No drug or device payments recorded (2025) ·
(510) 454-1000 Dr. Bennie Brown, MDUnion City, CA · No drug or device payments recorded (2025) ·
(510) 471-5880 Dr. Charlotte Burke, M.D.Union City, CA · No drug or device payments recorded (2025) ·
(510) 454-1000 Dr. Harita DevireddyUnion City, CA · No drug or device payments recorded (2025) ·
(510) 675-4010 Dr. James Massengill, M.D.Union City, CA · No drug or device payments recorded (2025) ·
(510) 454-1000 Dr. Jennifer Isaacs, M.D.Union City, CA · No drug or device payments recorded (2025) ·
(510) 454-1000 Dr. John Kim, M.D.Union City, CA · No drug or device payments recorded (2025) ·
(510) 471-5880 Dr. Joseph Bachicha, M.D.Union City, CA · No drug or device payments recorded (2025) ·
(510) 454-1000 Dr. Patricia Lee, M.D.Union City, CA · No drug or device payments recorded (2025) ·
(510) 454-1000 Dr. Silvia Hamilton, MDUnion City, CA · No drug or device payments recorded (2025) ·
(510) 675-4010 Dr. Stephen Young, M.D.Union City, CA · No drug or device payments recorded (2025) ·
(510) 454-1000 Dr. Wan Kim, M.D.Union City, CA · No drug or device payments recorded (2025) ·
(510) 454-1000 Dr. Winnie Cheung, M.D.Union City, CA · No drug or device payments recorded (2025) ·
(510) 454-1000 Conditions Obstetrics & Gynecology providers in Union City, California 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.
- Pregnancy care
- Endometriosis
- Fibroids
- PCOS
- Menopause
- Contraception
Common questions
How many Obstetrics & Gynecology providers are in Union City, California?There are 14 Obstetrics & Gynecology providers with active NPI records practicing in Union City, according to federal NPPES data refreshed monthly.
What conditions do Obstetrics & Gynecology providers in Union City treat?Obstetrics & Gynecology providers in Union City 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 Union City Obstetrics & Gynecology across California