Joseph E. Barrera, MD

4.9 out of 5 (176 Ratings)
  • Endocrinology, Diabetes & Metabolism
    (Board Certified)
26800 Crown Valley Pkwy.
Suite 230
Mission Viejo, CA 92691
Accepting New Patients

Primary Office

26800 Crown Valley Pkwy.
Suite 230
Mission Viejo, CA 92691
Get Directions
(949) 542-8004
(949) 364-3682
Mon - Fri: 8 a.m. - 4:30 p.m.

More Information

Medical Groups & Affiliations
  • Mission Heritage Medical Group
  • Mission Hospital Affiliated Physicians
  • Meet The Doctor

    Specialties & Education

    Primary Specialties
    • Endocrinology, Diabetes & Metabolism
      (Board Certified)
    Areas of Interest


  • Biography



    Dr. Barrera's interests include intensive management of diabetes, hypertension and lipid disorders.

    He is also involved in the management of prediabetic conditions including metabolic syndrome and polycystic ovarian syndrome.

    He has been the principal investigator for numerous clinical trials involving the development of new therapies for diabetes, blood pressure and thyroid cancer. He has lectured extensively to physician colleagues and patient groups in the area of cardiovascular risk management and preventive endocrinology.

    Prior to joining Mission Internal Medical Group, Dr. Barrera was the Medical Director of the Diabetes Program at Alta Bates Hospital in Berkeley, California and a team physician for the Oakland Athletics baseball team.

    He was also a physician consultant for the KRON and KTVU/Fox news stations in the San Francisco Bay Area.

    American Board of Internal Medicine
    Board Certified Endocrinology, 1999
    American Assosciation of Clinical Endocrinologists
    Endocrine Society
  • 14-Jan-2018
    I have recommended this provider to multiple people because of his knowledge, care, willingness to listen to all concerns, and follow through.
    I can't say enough how good Dr Barrera is. I'm very happy with his care. I use the FMH portal to communicate with him, I find it easier than trying to get thru via phone.
    I've been with this doctor for 12 years driving from Los Angeles to Mission Viejo. He is an excellent doctor
    The best physician I have ever had....we need more doctor's like Dr. Barrera.
    35 Total Comments Page 1 2 3 4 5 6 7   Next