Summary

Dr. Gamin Thomason is an obstetrician and gynecologist who earned her medical degree from the University of California San Francisco School of Medicine. She completed her residency training at Kaiser Permanente Medical Center, building a strong foundation in women's health care. With 38 years of experience in obstetrics and gynecology, Dr. Thomason brings extensive expertise to her practice. She is fluent in English, Spanish, and Tagalog.

Dr. Thomason is affiliated with Kaiser Permanente Santa Clara Medical Center and practices at multiple locations throughout Northern California, including San Rafael, Novato, and Petaluma. She specializes in treating conditions such as vaginitis, vaginal and vulvar cancers, and obesity management. Her practice includes virtual care consultations, autoinjector treatments, and bacterial vaginosis testing. Patients rate Dr. Thomason 5.0 out of 5 stars on average for her compassionate and comprehensive care.

Overview based on verified provider data

Quick Facts

  • 5
  • 38 years of experience
  • 10 insurance plans accepted
  • speaks English, Spanish, Tagalog
  • Kaiser Permanente Medical Center
  • 1 written review
  • 1 specialty
  • 11 areas of expertise
  • 1 hospital affiliation
  • 3 office locations
  • Female

Patients’ Perspective

  • Gave an accurate diagnosis
  • Had a good bedside manner
  • Spent time with me

Office Locations

Dr. Gamin Mary C Thomason has 3 locations

Kaiser Foundation Hospital

99 Montecillo RdSan Rafael, CA 94903

Novato Community Hospital

180 Rowland WayNovato, CA 94945

Petaluma Valley Hospital

400 N Mcdowell BlvdPetaluma, CA 94954

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Dr. Gamin Mary C Thomason, MD
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Dr. Gamin Mary C Thomason, MDRachel Villalon, MDDr. Monica Choo, MDDr. Kelly Banta, MD
Obstetrics & GynecologyObstetrics & GynecologyObstetrics & GynecologyObstetrics & Gynecology
Accepts New Patients Accepts New Patients Accepts New Patients
4.2 
38 Years of Experience 17 Years of Experience 5 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Speaks English, Spanish, Tagalog Speaks English, Spanish
San Rafael , CAFairfield , CAPleasanton , CAPleasanton , CA
Med School: University Of California San Francisco School Of Medicine Med School: Drexel University College Of Medicine Med School: University Of Michigan Medical School
Current Profile
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Insurance Plans Accepted by Dr. Gamin Mary C Thomason

  • Alameda Alliance for Health - Medicaid (Managed)
  • CHAMPVA
  • Contra Costa Health Plan
  • Health Plan of San Joaquin - Medicaid (Managed)
  • Kaiser Permanente
  • Kaiser Permanente - HMO
  • Kaiser Permanente - Medicaid (Managed)
  • Medicare - Medicare
  • Three Rivers Providers Network (TRPN) - Medicaid (Managed)
  • Western Health Advantage

Medical Specialties

Dr. Gamin Mary C Thomason has the following specialty

Specialty Expertise

Dr. Gamin Mary C Thomason has the following 11 areas of expertise

  • Birth Control
  • C-section
  • Child Birth
  • Hot Flashes
  • Infertility
  • Menopause
  • Menstrual Pain
  • Pap Smear
  • Pelvic Exam
  • Pregnancy
  • Women's Health

Certifications, License, & Education

38 Years Experience

Education & Training

Residency

Completed their residency at Kaiser Permanente Medical Center.

Medical School

Graduated from University Of California San Francisco School Of Medicine in 1988.

NPI Number

Dr. Thomason's NPI number is 1720162704.

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Frequently Asked Questions

Is Dr. Gamin Thomason accepting new patients?
Dr. Gamin Thomason has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.
How can I make an appointment with Dr. Gamin Thomason?
You can find contact information for Dr. Gamin Thomason here on Vitals.
Does Dr. Gamin Thomason accept my insurance?
You can see the insurance plans that Dr. Gamin Thomason accepts on their Vitals profile.
Where is Dr. Gamin Thomason's office located?
Dr. Gamin Thomason's office is located at 99 Montecillo Rd, San Rafael, CA, 94903.
Which hospitals is Dr. Gamin Thomason affiliated with?
Dr. Gamin Thomason is affiliated with Kaiser Permanente Santa Clara Medical Center.

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