Construction is Complete!

Lake Forest Animal Hospital is hosting an Open House to celebrate our brand new animal hospital! 

Please join us on Saturday, September 12th from 12-4pm for a fun afternoon of behind-the-scenes tours of the new facility, demonstrations, raffles, contests, and pet-themed goodies!

Humans of all ages are welcome, though children must be accompanied by an adult. We also do ask that your four-legged family members stay home as we are expecting a large crowd.

Welcome to Lake Forest Animal Hospital

Your Veterinarian in Gaithersburg, MD
Call us at 301-740-1083

Pet Emergency? Call us right away at 301-740-1083!


If you live in Gaithersburg or the surrounding area and need a trusted veterinarian to care for your pets – look no further. Dr. Mark Liberto and Dr. Polly Protos are licensed MD veterinarians, treating all types of pets. Your pets’ health and wellbeing are very important to us, and we take every possible measure to give your animals the care they deserve.

Lake Forest Animal Hospital is a full service animal hospital and welcomes both emergency treatment cases as well as pet patients in need of routine medical, surgical, and dental care. Our doctors have years of experience treating serious conditions and offering regular pet wellness care. 

If you have any questions, call 301-740-1083 or email us and we'll promptly get back to you.

At Lake Forest Animal Hospital, we treat your pets like the valued family members they are.

Dr. Mark Liberto | Dr. Polly Protos
Gaithersburg Veterinarian | Lake Forest Animal Hospital | 301-740-1083

18645 N. Frederick Ave.
Gaithersburg, MD 20879

Safe Hands

We know that our furry patients are a part of your family. We will ensure your experience with us will be convenient and efficient.

Our Mission

Online Pharmacy

Get everything you need for your pets to stay happy and healthy at our online pharmacy. Don't see what you need? Stop in and give us a call!

Shop Online

Experienced Help

Get the best veterinary care for your furry little friends. Our experienced veterinary doctors and techs will make your pet feel happy and comfortable.

Meet Our Staff

Go to top of page