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St. Jude Affiliated Physicians
P.O. Box 4138
Fullerton, CA 92834

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John M.  Gilbert MD
Practice accepting new patients.

John M. Gilbert MD

(714) 446-5640
Primary Specialties
  • Endocrinology, Diabetes & Metabolism
    (Board Certified)
Secondary Specialties
  • Internal Medicine
    (Board Certified)
Medical Groups & Affiliations
  • St. Jude Affiliated Physician
  • St. Jude Heritage Medical Group

Primary Office

100 E. Valencia Mesa Dr.
Suite 105
Fullerton, CA 92835
(714) 446-5640
(714) 446-5468
Recommend this Physician Request an Update for this Physician
4.6 out of 5 (233 Ratings | 29 Comments)


*Dr. Gilbert is always in a good mood, happy go lucky, asks questions and gives answers to my questions to my satisfaction.
Very smart man (doctor).
I feel *Dr. Gilbert is friendly, kind, he's concerned about me - he is knowledgeable about my condition, but more importantly, he knows who I am. Also, he's cute, well maybe handsome!!
I am very happy with Doctor Gilbert and NP Emalee Phillips. Some of the MAs are very good and were very good in this last visit. It's the intake people and front desk people who are mechanical and not as friendly.
I give this dr my highest praise and confidence. I have recommended to family and friends and will continue to do so. I moved away from this area but still drive 30 miles to see him because I value his expertise and his care and attention in treating me.
29 Total Comments Page 1 2 3 4 5 6   Next

Physician Bio

A love of teaching and a desire to help people live happier and healthier lives inspired me to become a physician. I care for the person as well as the disease, and my work in clinical research trials ensures patients have access to the newest treatment options. Over the years I have found that successful treatment is a result of working in partnership with my patients. Together, we can prevent a variety of conditions and related complications, as well as achieve a healthier lifestyle.

To further advance the treatment of endocrine disorders, I serve as Medical Director of Clinical Trials at St. Jude Heritage Healthcare, speak nationally on the latest innovations, and participate on St. Jude Medical Center’s committee to improve diabetes care.


  • Medical School:
    Downstate Medical School - New York , NY
  • Internship:
    St. Mary's Hospital - Rochester , NY
  • Residency:
    St. Mary's Hospital - Rochester , NY
  • Fellowship:
    State University of New York at Stonybrook - New York , NY
  • Board Certified in Endocrinology, Diabetes & Metabolism
  • Board Certified in Internal Medicine

Areas of Interest

  • Adrenal Disorders
  • Diabetes
  • Hyperlipidemia
  • Hypertension (High Blood Pressure)
  • lipid management
  • Menopause
  • Metabolism
  • Obesity
  • Osteoporosis
  • Weight Management
  • Thyroid
  • Adrenal and Pituitary Disorders
  • Sex Hormone Disorders
  • Hypogonadism
  • Hypoglycemia
  • Hypercalcemia
  • Hypocalcemia
  • Hyperparathyroidism
  • Acromegly
  • Cushing's Syndrome