portrait of a little girl with a healthy chocolate labrador puppy, cared for by the veterinarians at Jefferson Veterinary Hospital, an animal hospital located in beautiful Frederick county MD.

Since 1973, our veterinarians have been diligently working to improve the health and quality of lives of pets in Frederick county MD, making us one of the longest continuing operating veterinary hospitals in this area, due to our wonderful clients, who we consider our family.  

frederick md veterinarian frederick md

While we are one of the longest operating veterinary hospitals in the area, we operate out of one of the newest veterinary hospitals. We stay on top of developments in both veterinary medicine and alternate practices.  Your pets will be seen in a brand new, state-of-the art 6,300 square foot animal hospital and can take advantage of a wide variety of services that we offer, including diagnostics, surgery, oncology, dental treatment, laser therapy, stem cell therapy, platelet rich plasma injection therapy and comprehensive pain management to ensure that your best friend is healthy and comfortable!  


Our practice focuses on cats and dogs and helping the people who care for them.  We offer state of the art in house diagnostic services and compassionate care.  Beyond our equipment and veterinary expertise, we believe one of the best services we offer is client communication.  Our staff takes to heart your questions and concerns, and will work with you to determine the best course of treatment for your pet.  Our overriding belief is that your pets are not just pets, they are family!

portrait of a little girl with a healthy chocolate labrador puppy, cared for by the veterinarians at Jefferson Veterinary Hospital, an animal hospital located in beautiful Frederick county MD.


Our Mission

Best Veterinarian Frederick MD

Jefferson Veterinary Hospital believes in offering the highest quality medicine and surgery available in a timely, friendly and compassionate manner.  We focus on client communication and education as an important aspect of the doctor-client relationship that directly influences your pet's health and medical care.  

What We've Achieved

We are a pretty modest group here, and we strive to achieve the best in veterinary medicine each and everyday.  We could tell you about how our decades of experience has helped our knowledge of veterinary medicine and taught us that communication is key.  We could tell you how we stay on top of cutting edge treatments in the medical field and how this benefits your pets.  However; instead of us telling you what we have achieved, we feel that our clients are the best ones to do so:  

Dr. Ahalt is the most caring and compassionate vet that I have had the pleasure to use in a very long time! He truly loves the animals that he sees and cares for each of them as if they were his own. I highly recommend him and his clinic for any and all veterinary needs!! I’ve been seeing him for about 9 years now and have taken each and every one of my pets to him over the years.
— Norma
Absolutely awesome vet and staff. Dr. Ahalt has helped us with a very difficult time with our beloved rotti, who we drove from Florida just so Dr. A could be the vet to see him. I wouldn’t have trusted that case to anyone else.
— Hannah
Dr Ahalt & his entire staff are amazing! We switched veterinary practices and decided on trying Jefferson Vet Hospital after hearing a lot of raves about it. Very glad we made the switch!
— Kimberly
Best vet ever. Caring and loving of every animal that comes in. I drive an hour just to see them.
— Megan
Dr. Ahalt has been or vet for the past 6 years and has saved the lives of two of our animals. Awesome staff and stellar care. I’ve never experienced such a caring and incredible vet staff. Thank you for everything you have done for us.
— Sharon
My family and I have brought our pets here for years and every time I am impressed with the staff. Most visits have been routine check ups but this morning we had an emergency with my three year old dog who would not get out when I woke up today. Not only did the office get her in first thing to be seen but the staff was awesome as usual! Always so caring and genuine! Thanks so much for all you do to keep my fur babies healthy and happy!
— Elizabeth
Dr. Ahalt and staff, A note of deep gratitude for your compassion and assistance during one of our family’s darkest days ... thank you for all you and your staff have done over the last 16 years!
— Barb and Don
I’ve been bringing my dog, Bandit, here for years. I would never consider taking him anywhere else. You would never find a more caring vet than Dr. Ahalt and his staff, and I trust him completely.
— Ainsley
Dear Dr. Ahalt and staff, My husband and I cannot thank you enough for the care you gave our beloved golden retriever for almost 12 years. Dr. Ahalt, it was so very kind of you to come to our home. Our dog was in no shape to be moved and somehow you knew it would be best. We appreciate it so very much. Our dog is already missed like you wouldn’t believe but thanks to you and your assistant she left this world peacefully and with dignity. I am sure there will be a new puppy in our future and you all will surely be the ones we bring her to for the best vet care anywhere!
— Karen and Ed