VIN Consultants and Editors

Specialty: Endocrinology

Associate Editor

Mark Peterson

Mark Peterson

Board Certification

  • American College of Veterinary Internal Medicine (ACVIM) Small Animal Internal Medicine, 1981


  • Doctor of Veterinary Medicine, University of Minnesota, 1976

Current Professional Activities

  • Owner and Director of the Animal Endocrine Clinic, with practices located both in New York City and Bedford Hills, New York. The Animal Endocrine Clinic includes the following entities:
    • Hypurrcat, A Treatment Center for Hyperthyroid Cats
    • Endocrine Clinic
    • Nuclear Imaging for Animals
  • Endocrinology Consultant for VIN
  • Associate Professor of Radiology, Weill Medical College of Cornell University, New York City
  • Executive Board Member and Chairman of the Continuing Education Committee, Veterinary Medical Association of New York City
  • President of the Veterinary Medical Association of New York City

Past Professional Activities

  • Head of the Division of Endocrinology, Department of Medicine, The Animal Medical Center
  • Co-director of Education, Institute for Postgraduate Education, The Animal Medical Center
  • Radiation Safety Officer, The Animal Medical Center
  • Associate Director, Caspary Research Institute, The Animal Medical Center
  • Research Associate, Department of Medicine, The New York Hospital-Cornell Medical Center, New York City
  • Adjunct Professor of Medicine, Department of Clinical Sciences, University of Pennsylvania, School of Veterinary Medicine
  • Adjunct Assistant Professor of Medicine, Department of Clinical Sciences, New York State College of Veterinary Medicine, Cornell University

Marital Status

  • Married to Courtney Barden Peterson


  • Two male American Shorthair cats - Matthew Earl (MattE) and Thomas Earl (TomE)
  • One male DSH cat, who's the trouble maker! - Richard Earl (RickE)


  • Bike riding
  • Gardening
  • Reading and learning about new topics

Favorite Quotes

  • "Doubt everything. Find your own light." - The Buddha
  • "To know that you know, and to know what you don't know, that is real wisdom." - Confucius
  • "Nothing in life is to be feared, it is only to be understood." - Madam Curie

What I Like Most About VIN

The daily stimulation and knowledge acquired from fellow veterinarians.

Are you a specialist who loves helping (and learning from) colleagues?

Join the proud team of VIN Consultants and Associate Editors!
Call Paul D. Pion, DVM, DACVIM (Cardiology) at 530-757-6881 or email .