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March 20, 2020 COVID-19

As an essential business in the state of PA, our clinic will be following suggested protocols for the pandemic as dictated by the American Veterinary Medical Assoc., the Pennsylvania Veterinary Medical Assoc. and Gov. Tom Wolf. Until further notice we are available for essential services only. Our hours will remain the same except for Saturdays which will be by appointment ONLY. Please see EMERGENCY section on bottom of home page for steps to contact Dr. Horst in the event of an emergency. Any questions or concerns in regard to our COVID-19 status, please feel free to email us at mvcinfo@mercersburgvetclinic.com or call the clinic during regular clinic hours.

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  • Monday, Thursday:  8am - 5:30pm
  • Tuesday, Wednesday:  8am - 7pm
  • Friday:  8am - 3pm
  • 1st Saturday:  8am - 12pm
  • 3rd Saturday:  8am - 12 noon
COVID-19 Saturdays by appt ONLY!

Online Pharmacy

We have partnered with VETSOURCE to offer you the convenience of online ordering and home delivery. Never worry about counterfeit or expired product, strict quality control standards, competitive pricing with other online sources, Support a local business, not a big box national chain, CLICK ON ONLINE STORE button below.

Why Choose Us?

At Mercersburg Veterinary Clinic, we are pet owners who have dedicated our lives to the care of animals, as well as the support and continued education of pet owners. We uniquely understand that your pet is a special and irreplaceable member of your family. We pride ourselves on our ability to work as a team to prevent and relieve pain and sickness, to restore health, and to foster the bond between a family and their pets. We maintain a clinic facility that has the most modern diagnostic equipment so that we can offer the best medical, dental, surgical, diagnostic and preventative care. The basis of this promise to you and the foundation of your pet’s good health and vitality are found in the comprehensive preventive veterinary medical services we provide. We look forward to serving both you and your furry friends!

Our Services

What Our Clients Say

Our Location


We feel it is important to be available to our clients after hours should a pet emergency arise. For emergencies please call our regular clinic phone number 717.328.5171, and follow the phone prompts to leave a message. PLEASE speak clearly and be sure to leave your full name, phone number, pet's name and nature of the emergency. The doctor on call will receive notification and return the call as soon as possible.