Veterinary Team
Meet Our Veterinary Team
Meet the Veterinarians & Team of Mill Brook Animal Clinic! We’re pleased to provide exceptional vet care for your pets!
Get to know our veterinary team!
We are solely dedicated to your pet’s care! We look forward to getting to know you, and we hope you’ll take the time to scroll down and get to know us.
Dr. Jan Jeffers
Veterinarian
Dr. Jeffers was born and raised in the central coast area of California. She attended UCLA before moving to Massachusetts. At UMASS Amherst, Dr. Jeffers received an M.S. degree in nutrition, then went on to Tufts Veterinary School, graduating in 1989. Dr. Jeffers has worked in general medicine as well as in behavior medicine. She joined Mill Brook in 2013, continuing her interest in behavior medicine, especially in starting puppies off right, helping owners problem-solve, and improving the pet-family relationship. Dr. Jeffers and her family have lived in Arlington for 25 years. In addition to veterinary medicine, Dr. Jeffers enjoys being outdoors (walking, biking, gardening) and volunteers in food rescue and at a homeless shelter.
Dr. Pfannenstiel
Medical Director
Dr. Pfannenstiel is a graduate of Wellesley College (BA) and the University of Georgia College of Veterinary Medicine (DVM). She has worked as a veterinarian in a great variety of jobs. First as a US Army Officer, where she did food inspection, military working dog medicine and oversaw the US Military Mascot Mule Program. She then spent years as a relief doctor and entrepreneur before coming back into clinical medicine and clinical leadership. She loves to work with pets and their families to make sure that the human animal bond lasts as long as possible. She lives in Newton with her 3 kids, 1 husband and elderly rescue Shih Tzu and 2 kitties with extreme tort-i-tude. When not at work she loves to travel and see her friends around the world!
Dr. Kevin Fallon (Retired)
Veterinarian
Born and raised in Arlington, Dr. Fallon earned his bachelor’s degree from St. Michael’s College in Vermont and completed graduate work at UMASS School of Agriculture. He then earned his Doctor of Veterinary Medicine from the University of Pisa in Italy. Upon graduation, Dr. Fallon returned to the US to practice both equine and companion animal medicine. This took him as far south as Florida and Georgia and as far abroad as Thailand Royal Bangkok Sports Club-Polo Club. In 1994, Dr. Fallon returned to Arlington to start Mill Brook Animal Clinic. Since founding the clinic, Dr. Fallon has continued to keep up to date with the latest advances in veterinary medicine and has expanded his focus to include more holistic practices, completing the International Veterinary Acupuncture Society’s Program in 1999 and a course in veterinary orthopedic manipulation in 2000. Dr. Fallon’s interests include dentistry, general surgery, and Italian cuisine.