RS Isaac Gardner, MD


  • Princeton University, Princeton, N.J., A.B. Degree
  • New York University (Predoctoral Fellowship) N.Y. 
  • New York University School of Medicine, M.D. Degree

Post Graduate Education

  • Palo Alto–Stanford University School of Medicine, Stanford, CA.  St. Medicine Intern   Dept. of Biochemistry, Stanford University. Postdoctoral Fellow (Dr. Arthur Kornberg – Supervisor)
  • N.I.A.M.D.D., National Institutes of Health, Bethesda, MD., Associate, (Dr. Gordon Tomkins – Supervisor)
  • Dept. of Medicine, Barnes Hospital, St. Louis, MO., Assistant Resident
  • Division of Metabolism, Washington University, St. Louis, MO, Fellow
  • Dept. of Psychiatry, University of California, San Diego, CA, Resident


  • Borden Award for Undergraduate Research

Academic Appointments

  • Attending in Endocrinology, Valley Medical Center, Fresno, CA.
  • Assistant Professor of Medicine, University of Iowa, Iowa City, IA
  • Clinical Instructor of Psychiatry, University of California, San Diego, CA
  • Attending in Endocrinology, Sutter Medical Center, Santa Rosa, CA

Research Appointments

  • Research Associate, Veterans Administration, Iowa City, IA


  • National Board of Medical Examiners
  • American Board of Internal Medicine
  • California Board of Medical Quality Assurance
  • American Board of Psychiatry and Neurology (qualified)
  • American Board of Internal Medicine, Endocrinology, Diabetes, and Metabolism (qualified)

Private Practice

  • Specializing in Psychiatry and Endocrinology
  • (Dr. Gardner has developed particular expertise in endocrine-psychiatric evaluations and use of medications to treat a variety of psychiatric and adjustment disorders).

Memberships in Societies

  • American Society of Clinical Hypnosis
  • American Association of Clinical Endocrinologists
  • Endocrine Society of the Redwoods (past)
  • The International Society of Psycho-neuro-endocrinology (past)
  • The International Menopause Society

Employment History

  • Present Private Practice of Psychiatry and Endocrinology Santa Rosa, California
  • Assistant Professor of Medicine  University of Iowa, Iowa City, Iowa
  • Visalia Medical Clinic – Visalia, California
  • Private Practice in Internal Medicine


R.S. Isaac Gardner, M.D. graduated from Princeton University with a Chemistry major. He graduated from New York University School of Medicine. He spent a year of research in the laboratory of Nobel Laureate Dr. Severo Ochoa. This lead to publication of four research papers in collaboration with others leading to the deciphering of the genetic code. After graduating from medical school, he participated in a St. Medicine internship at Stanford School of Medicine. This was followed by a postdoctoral fellowship in Biochemistry under Nobel Laureate, Dr. Arthur Kornberg, with studies of bacterial sporulation as a model of differentiation initiated. Following the postdoctoral fellowship, two years were spent at the National Institute of Health under Dr. Gordon Tompkins. Studies on steroid hormone receptors lead to the discovery of hormone blockers. Following this fellowship, Dr. Gardner completed a residency in internal medicine and postdoctoral fellowship in endocrinology and metabolism at Washington University in St. Louis, under Carl V. Moore, M.D. and David Kipnis, M. D. He then practiced clinical endocrinology in a group practice for two years. Thereafter, he joined the faculty of the University of Iowa in the Dept. of Endocrinology and pursued endocrine research in thyroid hormone receptors. He discovered that these receptors bind to specific segments of the DNA. Following four years at the University of Iowa, Dr. Gardner entered a psychiatric residency at the University of California, San Diego. After graduating, he moved to Santa Rosa, CA and established a private practice of psycho-neuro-endocrinology. He continued his involvement with teaching by instructing family practice residents in endocrinology at the Sutter Family Practice Clinic in Santa Rosa until the clinic closed.