Jennifer S. Siani, MD, MBA
Accepting new patients

Jennifer S. Siani, MD, MBA

  • Diabetes
Average rating: 4.9
| 166 ratings
Westlake Village Primary & Specialty Care | 1250 La Venta Drive, Suite 112, Westlake Village, CA 91361


Dr. Jennifer Siani is a board-certified endocrinologist who practices at UCLA Health Westlake Village on La Venta Drive. She cares for all types of endocrine conditions including, but not limited to diabetes, obesity, thyroid, osteoporosis, adrenal, pituitary, menopause, as well as transgender health. She treats all of her patients with compassion and empathy. 

Dr. Siani graduated summa cum laude with a bachelor's in science from UCLA. She completed medical school at UC Irvine’s School of Medicine where she was inducted into the distinguished Alpha Omega Alpha Honor Medical Society. She concurrently earned her MBA at UC Irvine’s Paul Merage School of Business with an emphasis in healthcare. She completed her internal medicine internship and residency at UCLA.

Dr. Siani graduated from the UCLA Endocrinology, Diabetes and Metabolism Fellowship Program where she received diverse training at the Ronald Reagan UCLA Medical Center, the UCLA Santa Monica Medical Center and the West Los Angeles Veteran Affairs Medical Center. 

Prior to rejoining UCLA Health, Dr. Siani worked in a federally qualified healthcare center in Hawthorne, California for four years.  She played an integral role in creating an endocrinology clinic that continues to provide high-quality healthcare for underserved and unhoused patients in the community.

She is proficient in Spanish and welcomes Spanish-speaking patients.  

Outside of the office, Dr. Siani stays active with hiking, tennis, snowboarding, and Pilates. She also loves attending concerts, trying new restaurants, and playing with her snowshoe cat Oscar.


English, Spanish


Medical Board Certifications

Endocrinology, Diabetes and Metabolism, American Board of Internal Medicine, 2018
Internal Medicine, American Board of Internal Medicine, 2016


Endocrinology, Diabetes, and Metabolism, University of California, Los Angeles, 2018


Internal Medicine, University of California, Los Angeles, 2016


MD, UCI School of Medicine, 2013

Medical Services


  • Aetna
  • Anthem Blue Cross
  • Blue Shield of California
  • Centivo
  • Cigna
  • First Health
  • Health Net of California
  • Interplan (part of HealthSmart)
  • L.A. Care
  • MultiPlan
  • UFCM Health System
  • Prime Health Services
  • Private Healthcare Systems (PHCS)
  • UnitedHealthcare

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