Obstetrics & Gynecology in Petaluma, California
Data updated monthly · Last refresh September 2026
12 Obstetrics & Gynecology providers practice in Petaluma. Listings are drawn from federal public records and are not endorsements.
Obstetrics & Gynecology providers in Petaluma
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. Anthony Kosinski, M.D.Petaluma, CA · $178 in drug and device payments (2025) · Telehealth ·
(707) 763-2900 Dr. Bonni Massa, M.D.Petaluma, CA · $71 in drug and device payments (2025) · Telehealth ·
(628) 336-5260 Dr. Caroline Barnhart, MDPetaluma, CA · $32 in drug and device payments (2025) · Telehealth ·
(707) 765-3900 Dr. Elmira Manoucheri, M.D.Petaluma, CA · No drug or device payments recorded (2025) ·
(707) 765-3900 Dr. Fiona Redwood, M.D.Petaluma, CA · $38 in drug and device payments (2025) ·
(707) 559-7500 Dr. Gamin Thomason, MDPetaluma, CA · No drug or device payments recorded (2025) ·
(707) 765-3900 Dr. Judith Mccarthy, MDPetaluma, CA · No drug or device payments recorded (2025) ·
(707) 765-3900 Dr. Julie Clark, MDPetaluma, CA · $216 in drug and device payments (2025) · Telehealth ·
(707) 763-2900 Dr. Kellie Corcoran, MDPetaluma, CA · No drug or device payments recorded (2025) ·
(707) 765-3900 Dr. Laurie Dibble, MDPetaluma, CA · $357 in drug and device payments (2025) · Telehealth ·
(707) 765-3900 Dr. Susan Taylor Peters, MDPetaluma, CA · No drug or device payments recorded (2025) ·
(707) 765-3900 Dr. Tamar Segev, D.O.Petaluma, CA · $51 in drug and device payments (2025) · Telehealth ·
(415) 461-7800 Conditions Obstetrics & Gynecology providers in Petaluma, 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 Petaluma, California?There are 12 Obstetrics & Gynecology providers with active NPI records practicing in Petaluma, according to federal NPPES data refreshed monthly.
What conditions do Obstetrics & Gynecology providers in Petaluma treat?Obstetrics & Gynecology providers in Petaluma 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 Petaluma Obstetrics & Gynecology across California