Our clinic will remain open during the COVID-19 pandemic. Learn More or Call us: 603-882-2571. Get Directions. After Hour Emergencies: 603-669-2002

Our Veterinarians

Dr. Sarah Sullivan

Medical Director, DVM

Dr. Sarah Sullivan is a life long New England resident - she grew up in Metrowest Boston, and graduated with a Bachelor of Science degree in Materials Science and Engineering from MIT in 2002. She graduated with a Doctor in Veterinary Medicine degree from Tufts University School of Veterinary Medicine in 2008.
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Dr. Yvonne Lemieux


Dr. Lemieux, a Massachusetts native, graduated with honors from the Tufts Cummings School of Veterinary Medicine in 2013 and was inducted into Phi Zeta, the veterinary honor society, prior to graduation.
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Contact Us

Clark Veterinary Hospital


40 Webster Street Nashua, NH 03064

Clinic Hours

Mon: 10:00 am – 8:00 pm
Tues, Thurs & Fri: 8:00 am – 6:00 pm
Weds: 11:00 am - 8:00 pm
Open every other Saturday from 8:00 am -1:00 pm
Sunday: Closed