Meet the Professional Services Veterinary Team
Merck Animal Health has professional services veterinarians that cover the US from coast to coast with wide range of expertise. Get to know them, both professionally and personally.
Find and connect with the team member that supports your needs.
COMPANION ANIMAL
Rob Armstrong
DVM, DVSc, Sr. Professional Services Veterinarian
Pacific Northwest Region (AK, WA, ID, OR, HI)
“Merck Animal Health has a vision of the science of healthier animals and the PSV team plays a critical role in interpreting and communicating the latest information for our colleagues in veterinary practices.”
Debera A. Butler
DVM, Sr. Professional Services Veterinarian
Mountain States Region (AZ, CO, ID, MT, NM, NV, UT, WY)
“One of my favorite parts of being a veterinarian for Merck Animal Health is visiting my alma mater, CSU. I get the honor of lecturing to students and collaborating with faculty, some of which taught me.”
Robert Duquette
(he/him)
PhD, BVSc, MRCVS, Associate Director
Veterinary Professional Services West Area
“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.”
David C. Duvall
DVM, Sr. Professional Services Veterinarian
Ohio Valley Region (NY, OH, PA)
“It was my life-long dream to become a veterinarian and improve the lives of animals. Becoming a veterinarian was the only occupation I ever considered.”
Sheryl Gamble
MS, DVM, Sr. Professional Services Veterinarian
Southeast Region (FL, GA)
“Animals love unconditionally. We should be more like them.”
Matthew Goetz
DVM, MBA, Sr. Professional Services Veterinarian
“I love the fact that all my customers do their best every day with the resources they have available in order to make a positive impact on the animals in their community.”
Jeanne Goodfellow
DVM, RN, Sr. Professional Services Veterinarian
South Florida Region (FL)
“I enjoy getting to know other veterinarians and staff at the hospitals that I visit. After many years of working together to help them achieve their goals, a bond of trust forms.”
Laura Greene
DVM, DACVIM, Sr. Professional Services Veterinarian
Internal Medicine, National
“Veterinary medicine is such an exciting and innovative field, and I am at my happiest when able to share my enthusiasm for all the new ways we are able to help our pets live longer and healthier lives.”
Erin Hatcher
DVM, Sr. Professional Services Veterinarian
Low Country Region (FL, GA, SC)
“Merck Animal Health’s commitment to animals and science continues to pave the way for new and innovative products.”
Joseph Hahn
DVM, MA, BBA, Executive Director,
US Companion Animal and Equine Professional Services
“In my role at Merck Animal Health, I am able to help veterinarians, and that equates to helping animals in a different and exciting way. My ability to reach and impact a larger audience means I can help more pets live healthier lives.”
Camille Heersche
DMV, Sr. Professional Services Veterinarian
Texoma Region (TX, OK)
“As a veterinarian, you’re not working with animals so much as you are working with people. I love that part of the job, and at Merck Animal Health, I get to do that all the time.”
Sharon Hubby
VMD, Sr. Professional Services Veterinarian
Tri-State Region (CT, NJ, NY)
“I grew up with 14 dogs, 50 rats, 3 mice, 2 gerbils and a bunny. My desire to become a veterinarian began at a very early age and I never considered any other career.”
Nikhil Joshi
VMD, Sr. Professional Services Veterinarian
Mid-Atlantic Region (DC, DE, MD, PA)
“I am proud to be working with such accomplished, passionate, hard-working, and friendly people.”
Blythe Jurewicz
DVM, Senior Professional Services Veterinarian
Northern California Region (CA)
“Caring for and bonding with my patients and the people who care for them is one of the most rewarding parts of being a veterinarian.”
James R. Kallman
DVM, Sr. Professional Services Veterinarian
South Central Region (AR, KS, MO, OK)
“The best parts of my day have animals in them; the worst is when I have to say goodbye to a beloved family member.”
Christopher A. Lee
DVM, MPH, DACVPM, Sr. Professional Services Veterinarian
Southern California Region (CA)
“The deeper we dive into veterinary medicine, the more interweaved with other species, and fascinating we find one animal to be, the human. This profession helps animals and people to enrich each other’s lives further.”
Diane McDonald
VMD, Professional Services Veterinarian
Bayou Country Region (TX, LA)
“I’ve been so impressed with Merck Animal Health as a company, and my teammates as individuals. Everyone cares about doing the right thing in support of customers, patients, and communities at large.”
Debra Olbrich
DVM, MS, Sr. Professional Services Veterinarian
Great Lakes Region (IA, IL)
“I can’t imagine my life without animals. They provide unconditional love to us and I get such a great feeling inside knowing that I can help that animal live a long and comfortable life.”
Mark Pelham
DVM, Sr. Professional Services Veterinarian
Gulf Coast Region (AL, FL, LA, MS, TN)
“What I enjoy most about being a veterinarian is being part of that human-animal bond and helping those that can’t help themselves.”
John Rehak
MBA, DVM, Associate Director,
Veterinary Professional Services
South Area
“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.”
Keith Rohrer
DVM, Professional Services Veterinarian
Michiana Region (IN, MI, OH)
“Bonding with pets and their families through all life stages is the most rewarding aspect of this noble profession.”
Joel Sailor
DVM, Sr. Professional Services Veterinarian
Corporate and Strategic Accounts, National
“Merck Animal Health maintains a culture of science, collaboration, and integrity.”
Jennifer Scata
DVM, CCRT, Sr. Professional Services Veterinarian
Central Texas Region (TX)
“I have always admired Merck Animal Health as a company because their values about animal well-being are closely aligned to my own.”
Staci Scolavino
VMD, Associate Director,
Veterinary Professional Services
Central Zone
“At Merck Animal Health, I get to work with an incredible team that is passionate about dogs and cats living long, healthy lives. The health and wellbeing of not only companion animals but those who take care of them are what drives us each and every day.”
Keri Shaver
DVM, Sr. Professional Services Veterinarian
Carolinas Region (NC)
“I love being able to partner with our colleagues to help them achieve their visions within their practices.”
Nicole Sinclair-Torre
VMD, MBA, Associate Director,
Veterinary Professional Services East Area
“As a Professional Services Veterinarian, you can positively impact so many animals through education and conversations with numerous veterinary healthcare team members.”
Matthew Stevens
DVM, Sr. Professional Services Veterinarian
Shenandoah Valley Region (KY, VA)
“Growing up, we had every type of critter there was. Dogs and cats to birds and iguanas. I always enjoyed not only our pets, but also the interactions with our veterinarian and the staff.”
Margaret Warner
DVM, MS, Sr. Professional Services Veterinarian
North Central Region (WI, MN, ND, SD, NE)
“Merck Animal Health is as passionate about veterinarians and veterinary medicine as I am.”
Christina Wheeler
DVM, Professional Services Veterinarian
Shenandoah Region (VA, WV)
“As a veterinarian, I feel fortunate to be part of a profession that affords me the opportunity to constantly learn. What I love most about being part of the Merck Animal Health Team is the commitment to the veterinary community through science and education.”
EQUINE
Fairfield T. Bain
DVM, MBA, Dipl. ACVIM, ACVP, ACVECC,
Associate Director of Strategic Development
and Innovation – Equine
Dr. Bain’s areas of interest include diagnostic ultrasound in critical care, perinatology and neonatal intensive care, cardiovascular disorders, cytopathology and surgical pathology, dermatology and dermatopathology, and hyperbaric oxygen therapy.
Duane Chappell
DVM,
Associate Director
Equine Pharmacovigilance and Professional Services
Dr. Chappell’s areas of interest include reproduction, dentistry, infectious disease, preventative care, vaccinology and biosecurity.
Bryant Craig
DVM,
Associate Director, Scientific Sales Affairs
Lead for Equine Professional Services and Pharmacovigilance
Dr. Craig’s areas of interest include reproduction, sports medicine and lameness, herd health, infectious disease, preventative care and vaccinology.
Chrissie Schneider
DVM, MS, DABVP (Equine Practice), cVMA,
Senior Equine Professional Services Veterinarian
Dr. Schneider’s areas of interest include infectious disease and preventive care, ophthalmology, emergency care in the field and acupuncture.
Cara Wright
DVM, MS, IVCA,
Senior Equine Professional
Services Veterinarian
Dr. Wright’s areas of interest include sports medicine and adjunct therapies, geriatric horses, and emergency care.
Phil van Harreveld
DVM, MS, DACVS-LA,
Senior Equine Professional
Services Veterinarian
Dr. van Harreveld’s areas of interest include lameness examination, soft tissue surgery, reproductive surgery, management of medical and surgical equine colic.
LIVESTOCK
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