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Meet the Professional Services Veterinary Team

Meet the Professional Services Veterinary Team

MEET THE PROFESSIONAL SERVICE VETERINARY (PSV) TEAM at Merck Animal Health. Learn their educational backgrounds, areas of specialization, experience, and contributions to the field of animal health. The team makes themselves available as a resource for veterinary professionals seeking guidance and support regarding Merck Animal Health’s products and services. Connect with our experts in various fields of veterinary medicine with specialized knowledge in specific animal species, diseases, and product information. Veterinarians, veterinary professionals and vet students throughout the industry can reach out to our team when seeking guidance on various animal health topics or consultations for complex cases.

Companion Animal Veterinarians

At Merck Animal Health the primary goals of the Professional Service Veterinarians are improving the health and well-being of animals, education within the veterinary industry, and educating pet owners in the care for their pets’ continued health.

Companion Animal

Ashley Akins, DVM

Professional Services Veterinarian
Upstate NY Region
(NY, PA)

COMPANION ANIMAL

Patricia Burbano, DVM

Sr. Professional Services Veterinarian,
Central Texas Region (TX)

COMPANION ANIMAL

Jessica Burns, DVM

Professional Services Veterinarian,
Mountain States Region
(CO, UT, ID, MT, NE, SD, ND)

COMPANION ANIMAL

Debra A. Butler, DVM

Mountain States Region (AZ, CO, ID, MT, NM, NV, UT, WY)

COMPANION ANIMAL

Meg Conlon, DVM

Executive Director,
US CABU Professional Services
Veterinary Professional Services

COMPANION ANIMAL

David C. Duvall, DVM

Sr. Professional Services Veterinarian,
Ohio Valley Region (OH, PA)

COMPANION ANIMAL

Sheryl Gamble, MS, DVM

Sr. Professional Services Veterinarian
Southeast Region
(FL, GA)

COMPANION ANIMAL

Laura Garlow, DVM

Professional Services Veterinarian
North Carolina Region
(NC, SC, VA)

COMPANION ANIMAL

Jeanne Goodfellow, DVM

Sr. Professional Services Veterinarian
South Florida Region
(FL)

COMPANION ANIMAL

Sumeet Gupta, DVM

Professional Services Veterinarian
Southern California Region
(CA)

COMPANION ANIMAL

Camille Heersche, DVM

Sr. Professional Services Veterinarian
Texoma Region
(OK, TX)

COMPANION ANIMAL

Sharon Hubby, VMD

Sr. Professional Services Veterinarian
Tri-State Region
(CT, NJ, NY, RI)

COMPANION ANIMAL

Nikhil Joshi, VMD

Sr. Professional Services Veterinarian
Mid-Atlantic Region
(DC, DE, MD, NJ, PA)

COMPANION ANIMAL

Blythe Jurewicz, D

Sr. Professional Services Veterinarian
Northern California Region
(CA, NV)

COMPANION ANIMAL

Todd Knappenberger, DVM

Professional Services Veterinarian
South Central Region
(AR, KS, MO)

COMPANION ANIMAL

Kristy Knowles, DVM

Sr. Professional Services Veterinarian,
South Texas Region (TX)

COMPANION ANIMAL

Diane McDonald, VMD

Professional Services Veterinarian,
Pacific Northwest Region (WA, OR, HI, AK)

COMPANION ANIMAL

Maggie Nolin, DVM, MAB

Sr. Professional Services Veterinarian,
Low Country Region (SC, FL, GA)

COMPANION ANIMAL

Debra Olbrich, DVM, MS

Associate Director,
Veterinary Professional Services,
North Area

COMPANION ANIMAL

Mark Pelham, DVM


Sr. Professional Services Veterinarian,
Gulf Coast Region (AL, MS)

COMPANION ANIMAL

Kerry Peterson, DVM,

Sr. Professional Services Veterinarian
Heartland Region
(IN, IL, KY)

COMPANION ANIMAL

John Rehak, MBA, DVM

Associate Director,
Veterinary Professional Services
South Area

COMPANION ANIMAL

Keith Rohrer, DMV



Professional Services Veterinarian,
Michigan-Ohio Region (MI, OH)

COMPANION ANIMAL

Jennifer Scata, DVM, CCRT

Associate Director,
Veterinary Professional Services,
West Area

COMPANION ANIMAL

Keri Shaver, DVM

Associate Director,
Veterinary Professional Services,
East Area

COMPANION ANIMAL

Lori Schega Fernandez, DVM

Professional Services Veterinarian,
Bayou Country Region (AR, LA, MS)

COMPANION ANIMAL

Matthew Stevens, DVM


Sr. Professional Services Veterinarian,
Midwest Region (KY, TN)

“Being a member of the Merck Professional Services Veterinary team is a wonderful opportunity to support the veterinary profession by providing education and solutions to advance companion animal healthcare.”

– Dr. John Rehak, Associate Director,
Veterinary Professional Services South Area

Veterinary Insights and Medical Affairs

veterinary insightS

Staci Scolavino, VMD


Director Scientific Affairs,
Veterinary Insights and Medical Affairs

veterinary insightS

Dorothy Normile, VMD

Associate Director Scientific Affairs,
Veterinary Professional Services

veterinary insightS

Madeleine Stahl, DVM



Associate Director Scientific Affairs,
Veterinary Insights and Medical Affairs

veterinary insightS

Dominique Sims, DVM



Associate Director Scientific Affairs,
Veterinary Insights and Medical Affairs

veterinary insightS

Diedra Denise Clark, DVM, CCRP

Associate Director Scientific Affairs,
Veterinary Insights and Medical Affairs

veterinary insightS

Laura Greene, DVM, DACVIM




Sr. Professional Services Veterinarian, Internal Medicine, National

veterinary insightS

Christine McKinney, DVM, DACVD



Sr. Professional Services Veterinarian Dermatology

veterinary insightS

Warda El Akkari, MPH


Senior Specialist,
Veterinary Insights and Medical Affairs,
CVT (in progress)

“It’s an honor to be part of such a diverse and talented Team. Not a day has gone by that I haven’t learned new and exciting innovations across the veterinary field – not only in companion animals, but for all animals.”

– Dr. Robert Duquette, Director,
Strategic Account Veterinarians

Strategic Account Veterinarians

Account Veterinarians

Robert Duquette,
PhD, BVSc, MRCVS

Director,
Strategic Account Veterinarians, National

Account Veterinarians

Michele Travers, DVM



Associate Director,
Strategic Account Veterinarians, National

Account Veterinarians

Erin Hatcher, DVM

Professional Services Veterinarian,
Strategic Account Veterinarians, Inside Sales, National

Account Veterinarians

Sandra Strong, DVM

Professional Services Veterinarian,
Strategic Accounts Veterinarians,
Animal Welfare Organizations, National

“I love training in the clinic and sharing new information with veterinarians and our sales force. The opportunity to work with veterinarians and veterinary staff, training new hires, and technically supporting different products for marketing when needed makes my career extremely rewarding.”

– Dr. D. D. Clark,
Senior Professional Services Veterinarian

Equine Team

Accomplished practitioners, surgeons and transformative leaders, our equine doctors are specialized veterinarians who focus on the medical care and treatment of horses. They are passionate professionals who possess unique expertise, experience, and a strong commitment to the well-being of horses. Their primary goal is to provide top-quality care, utilizing a solutions-oriented approach that prioritizes the best interests and doing what’s right for the horse.

Equine Team

Bryant Craig, DVM

Associate Director,
Scientific Sales Affairs Lead for Equine Pharmacovigilance & Professional Services

Equine Team

Duane E. Chappell, DVM

Associate Director,
Equine Pharmacovigilance & Professional Services

Equine Team

Chrissie Pariseau,

DVM, MS, DABVP (Equine Practice), cVMA

Sr. Equine Professional Services Veterinarian

Equine Team

Cara Wright, DVM, MS, IVCA

Sr. Equine Professional Services Veterinarian

Equine Team

Philip van Harreveld, DVM, MS, DACVS-LA

Sr. Equine Professional Services Veterinarian

Equine Team

Christina S. Taylor, BS, RVT

Drug Safety (Pharmacovigilance – Equine)

“For the equine veterinary profession to prosper, we must support and educate the upcoming generation to create a life-work balance to ensure the future of the profession and ongoing care of the horse.”

– Dr. Phil van Harreveld,
Senior Equine Professional Services Veterinarian