Diana Tran-Kim

Physician · OB-GYN

15+ years of experience

About Oh Bloom Gyn

Oh Bloom Gyn is the Tustin gynecology office Dr. Diana Tran-Kim opened after five years in an Orange County multidisciplinary group. Perimenopause and menopause care sits at the front of the site, framed around sleep, concentration and comfort with intimacy rather than a symptom checklist. Hormone replacement therapy has its own service page, and the practice's one journal article is written in the first person about the signs that make hormone therapy worth a conversation. Alongside gynecology the office runs its own device suite, including an intravaginal Femilift laser used for dryness, laxity and leaking, and a pelvic floor chair for urinary leaking. A supervised weight programme prescribes semaglutide or tirzepatide with the medication included, and minimally invasive laparoscopy and hysteroscopy are named as work Tran-Kim and a second physician do. Visits are arranged by phone, text or a request form, and a nurse practitioner and a physician assistant also see patients.

Care

Treats

  • Perimenopause
  • Menopause
  • Hot flashes
  • Sleep problems
  • Mood & anxiety
  • Brain fog
  • Vaginal dryness
  • Low libido
  • Irregular periods

Prescribes

  • Hormone therapy
  • Weight medication
  • Gyn procedures
  • Vaginal laser & RF

Particular focus

  • Bladder & UTIs
  • Weight & metabolism

Cost and insurance

Insurance

Private insurance — plans not listed, ask about yours

Medicare

Medicaid (CA)

Self-pay

Oh Bloom Weight Loss Initiation, Three Month Program · includes medication
$2,000
Oh Bloom Weight Loss Maintenance, Monthly Program · includes medication
$700 per month
Emsella Maintenance
$400
Aesthetic membership, Tone & Rejuvenate
$199 per month
Aesthetic membership, Elite
$299 per month

The only insurance sentence on the site is that the office can review insurance eligibility and help arrange your visit, and no price is published for an office visit, hormone therapy or Femilift. An Inner Circle membership covering menopause, gynecology, wellness, nutritional care and weight loss is advertised at a founding-member figure struck through from a higher one, with no billing period printed and details given only by phone or a callback form, so it is not recorded as a plan row. The online store also prices facial-laser packages and a medical gym membership, and the homepage and store both say the practice provides flexible payment and financing options.

Verified October 2026. Coverage depends on your plan — confirm with your insurer before your visit.

Qualifications

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