VIN Consultants and Editors

Specialty: Equine

Associate Editor

Ellen Wiedner

Ellen Wiedner

Board Certification

  • European College of Zoological Medicine (ECZM), 2017
  • American College of Zoological Medicine (ACZM) Zoo Medicine, 2015
  • American College of Veterinary Internal Medicine (ACVIM) Large Animal Internal Medicine


  • Residency in Internal Medicine, Purdue University
  • Internship, Cornell University
  • Veterinariae Medicinae Doctoris, University of Pennsylvania
  • Artium Baccalaureatus, Princeton University

Current Professional Activities

  • Owner of Hyrax Consulting, LLC: Zoo veterinary relief and consulting.


  • Calvin my young black lab who has three moods: happy, superhappy, and despair — like when dinner is late, but it never lasts long.
  • Baxter my older yellow lab, a former Guiding Eyes for the Blind service dog who is embracing retirement (and general naughtiness) with enthusiasm.
  • Betty, my fuzzy dilute tortie kitten, adopted in a moment of covid lockdown madness, who retrieves better than either of her big brothers.


  • Hiking with the dogs in the beautiful place I live (Four corners area)
  • Quilting.
  • Using a laser cutter.

Favorite Quote

“You can't go back and change the beginning, but you can start where you are and change the ending.” —C.S. Lewis.

What I Like Most About VIN

Brilliant, compassionate people.

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 .