Meet the Doctors
Dr. Fischer, Providing Thoughtful Pet Care in Washington, DC
Meet Kristen Fischer, VMD
Dr. Kristen Fischer has always been driven by a captivation with biology and a deep love for animals. Since beginning her career in 2002, she has found that her favorite part of veterinary medicine is the relationships she builds with pets and the people who love them. She also enjoys the puzzle-solving aspect of her work, piecing together information from an animal’s history, physical exam, and diagnostics to uncover the best path forward. Dr. Fischer thrives on the diversity of general practice and the teaching aspect of her role, ensuring every client feels empowered and informed.
“I relish being witness to the bond between an owner and their pet.” -Dr. Fischer
Education and Experience
Dr. Fischer brings over two decades of high-level medical experience to Georgetown, rooted in a prestigious academic background and a commitment to lifelong learning. She graduated Summa Cum Laude from the University of Pennsylvania in 2002 with her VMD. Following graduation, she completed a Small Animal Rotating Internship in Medicine and Surgery at Texas A&M. After practicing in Houston until 2006, she moved to the DC area where she has served the community ever since. She has been a proud member of the American Veterinary Medical Association since 2002.
Outside the Office
When she is not at the hospital, Dr. Fischer stays busy tending to her family and her two teenage boys. She and her husband also just celebrated twenty years of marriage in April 2026! Her love for animals follows her home, where she enjoys tending to her chickens, snuggling on the couch with her dogs, and bonding with her parrot over trick training. To help satisfy what she jokingly calls a "Vitamin C deficiency" (for cats), she fosters kittens whenever time permits. She also finds balance through simple pleasures like gardening, reading, and lounging at the beach.
Meet Abigail Littleton, VMD
For as long as she can remember, Dr. Abigail Littleton always dreamed of becoming a veterinarian. That lifelong passion has guided every step of her journey, from studying global health to pursuing veterinary medicine and caring for a wide variety of species. She is passionate about providing exceptional care for dogs, cats, birds, small mammals, and reptiles, and is thrilled to have found her professional home at Collins Hospital for Animals.
Education and Experience
Born and raised in Ohio, Dr. Littleton attended college in our very own backyard, graduating from Georgetown University with a Bachelor of Science in Global Health. She went on to obtain her veterinary degree from the University of Pennsylvania. While there, she pursued her passion for healthcare for all species as a member and president of the One Health Club.
After working in private practice on the Eastern Shore and in Ohio, the call of our nation's capital was too strong to ignore. She moved back to Washington, DC in 2025 with her husband, their Great Dane, and two cats. In due time, she found her way to Collins, where she feels she has finally found her professional home.
Outside the Office
When she's not caring for patients, Dr. Littleton stays busy enjoying her many hobbies. A true renaissance woman, she can be found painting animal portraits, perfecting her chocolate chip cookie recipe, singing to maintain her a cappella chops, marathon training, and exploring all of the wonderful restaurants and cafés our city has to offer.