Dr. Tamar Segev, DO

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

• Marinhealth Medical Center Hospital · Greenbrae, CA
• Novato Community Hospital Hospital · Novato, CA

Colleagues at Regents Univ of California UCSF

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 272 clinicians in the practice; 12 are shown here.

• Dr. Edward John Alfrey, MD Transplant Surgery Physician · Larkspur, CA
• Elizabeth Debra Cedars, MD Otolaryngology Physician · Santa Rosa, CA
• Dr. Allan Marc Conway, MD Surgery Physician · San Francisco, CA
• Dr. Sujoya Dey, MD Internal Medicine Physician · Larkspur, CA
• Maria Raquel Garcia-Ball, RN Family Nurse Practitioner · Larkspur, CA
• Dr. Leah Morton Kelley, MD Obstetrics & Gynecology Physician · Greenbrae, CA
• Dr. Justin David Krogue, MD Orthopaedic Surgery Physician · San Francisco, CA
• Dr. Stephanie Jacquelyn Maroney, MD Surgery Physician · Larkspur, CA
• Miranda Minh-Han Nguyen Physician Assistant · San Rafael, CA
• Anoosheh Nikkar, PA-C Physician Assistant · Los Angeles, CA
• Leeanne Obilor Physician Assistant · Corte Madera, CA
• Dr. Donna Wiggins, MD Obstetrics & Gynecology Physician · San Francisco, CA

Other providers in Petaluma

• Elmira Manoucheri, MD

  Individual Obstetrics & Gynecology Physician · NPI 1942475710

  3900 Lakeville Hwy, Petaluma, CA 94954-5698 · (707) 765-3900

• Bonni S. Massa, MD

  Individual Obstetrics & Gynecology Physician · NPI 1508933607

  1496 Professional Dr Ste 603, Petaluma, CA 94954-6698 · (628) 336-5260

• Judith McCarthy, MD

  Individual Obstetrics & Gynecology Physician · NPI 1770667750

  3900 Lakeville Hwy, Petaluma, CA 94954-5698 · (707) 765-3900

• Fiona Redwood, MD

  Individual Obstetrics & Gynecology Physician · NPI 1255323945

  1179 N McDowell Blvd, Petaluma, CA 94954-6559 · (707) 559-7500

• Dr. Susan Michelle Taylor Peters, MD

  Individual Obstetrics & Gynecology Physician · NPI 1427086370

  3900 Lakeville Highway Obstetrics And Gynecology, Petaluma, CA 94954-5698 · (707) 765-3900

• Gamin Mary Thomason, MD

  Individual Obstetrics & Gynecology Physician · NPI 1720162704

  3900 Lakeville Hwy, Petaluma, CA 94954-5698 · (707) 765-3900