Accepting New Patients

Diana Tran-Kim, DO

  • Obstetrics and Gynecology
    (Board Certified)
Primary Address | Office Details
Diana Tran-Kim, M.D
12791 Newport Beach Ave
Suite 106

Tustin, CA 92780

Phone: (714) 210-5665

Fax: (714) 210-0231

Medical Groups & Affiliations
  • Providence Affiliated Physicians, St. Joseph
Get Connected
to Your Provider
(714) 210-5665
  • Meet The Provider
    Dr. Diana Tran-Kim is an obstetrician gynecologist in Orange County. She grew up near Montreal, Canada and moved to Texas where she attended high school and college. She graduated Magna Cum Laude with a double major in Biology and French from Houston Baptist University. Apart from English, she is fluent in French and Vietnamese. She attended medical school in West Virginia at WVSOM and did her Obstetric/Gynecology residency training in Brooklyn, NY. She continued to work in Manhattan, NY as staff faculty at New York University and Lenox Hill hospitals.

    Her medical background is founded on the principles of osteopathic medicine in which the belief of helping the whole body to be in good health in order to maximize the body’s own healing is key. She opened her private office, Oh Bloom Gyn, in Fountain Valley in the fall of 2020. This has been a goal of Dr. Diana Tran-Kim to provide preventive, compassionate medical care for women in all stages of their lives from teens to reproductive years to the transition to menopause. More information can be found on

    Dr. Diana Tran-Kim enjoys spending time with her wonderful husband and three kids, doing outdoor activities such as running, hiking, snowboarding, and swimming. Fun fact, she participated in a documentary in 2013 about pregnancy along with thirteen mothers called 40 Weeks, which premiered at the Angelika Theater in New York City.
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    Primary Specialties
    Primary Specialties
    • Obstetrics and Gynecology
      (Board Certified)
    Other Specialties Associations
    Board Certifications

    American Board of Obstetrics and Gynecology, Obstetrics and Gynecology

    Education & Training
    • Medical School
      West Virginia School of Osteopathic Medicine - 2009
    • Residency
      Wyckoff Heights Medical Center - 2014
  • Insurance Accepted

    Insurance Accepted

    • Insurance Plan

    • Aetna HMO
    • Anthem Blue Cross HMO
    • Anthem Blue Cross Medicare Advantage
    • Blue Shield of CA HMO
    • Blue Shield of CA Medicare Advantage
    • Cigna HMO
    • Cigna HMO - Select
    • Health Net HMO
    • Health Net Medicare Advantage
    • Oscar EPO
    • Providence Medicare Advantage
    • SCAN Medicare Advantage
    • United Healthcare HMO
    • United Healthcare Medicare Advantage
    • Vivity by Anthem Blue Cross
  • Primary Location

Diana Tran-Kim, M.D