Dr. Patricia A. Marquis was named the Horseracing Integrity & Welfare Unit’s (HIWU) director of equine medical resources in December 2022.

As director of equine medical resources, Dr. Marquis will develop, implement, and direct HIWU’s industry-focused scientific, anti-doping, and Controlled Medication education initiatives regarding the Horseracing Integrity and Safety Authority’s Anti-Doping and Medication Control (ADMC) Program. She will lead the dissemination of accurate and current information relative to the ADMC Program’s Prohibited List to address questions concerning Covered Horses and Covered Persons. Dr. Marquis will also assist in the development and launch of an equine drug reference database.

Before joining HIWU, Dr. Marquis was a veterinary medical officer at the United States Department of Agriculture as part of that organization’s Veterinary Services unit within the Marketing and Regulatory Programs’ Animal and Plant Health Inspection Service. She previously served many years as senior association veterinarian at Gulfstream Park and Calder Race Course. Dr. Marquis has also worked as a regulatory veterinarian for the Kentucky Horse Racing Commission and as a member of the Breeders’ Cup’s international veterinary panel. She has assisted with endeavors for the California Horse Racing Board, the British Horse Racing Authority, and the International Racing Bureau.

Hailing from Canada, Dr. Marquis received her veterinary degree from Atlantic Veterinary College at the University of Prince Edward Island.

Patricia A. Marquis, DVM

Director of Equine Medical Resources