Visiting Veterinarians

Dr. Seth A. Koch, VMD, Diplomate ACVO, Ophthalmology

Dr. Seth A. Koch

Born and raised in Brooklyn, New York, Dr. Seth Koch graduated from Erasmus Hall High School, the oldest public high school in the United States. After high school, he attended the State University of New York in Binghamton where he was awarded a B.A. Degree. Following his undergraduate studies, he was admitted to the University of Pennsylvania School of Veterinary Medicine and graduated with his Doctorate in Veterinary Medicine in 1965.

After practicing veterinary medicine for a few years in Kingston, MA, Dr. Koch returned to the University of Pennsylvania Veterinary Hospital as an intern and then as a recipient of the Seeing Eye Fellowship in the Department of Small Animal Medicine. It was during this time that his interest in ophthalmology began.

Dr. Koch received a grant for a post doctoral fellowship at the National Institutes of Health and completed a residency at the human and veterinary hospitals of the University of Pennsylvania. His mentor at the veterinary hospital was Dr. Lionel Rubin and at the human hospital, Dr. Harold Scheie. As a result of his hard work, Dr. Koch was awarded a Master’s Degree in Comparative Ophthalmology from the Graduate School of Medicine at the University of Pennsylvania.

In 1970, the American Veterinary Medical Association recognized the American College of Veterinary Ophthalmology as a specialty college. As an integral part of the ACVO development, Dr. Koch distinguished himself as one of the college’s 24 charter members. In 1975, he was elected president and has since served on many ACVO committees.

In 1970, Doctor Koch established one of the first specialty practices in the United States. He opened The Animal Eye Clinic in Alexandria, VA, a suburb of Washington, DC. The office has moved several times since its inception and is currently located in Silver Spring, Maryland. A leader in veterinary specialty practices, Dr. Koch was also instrumental in organizing other specialty and emergency hospitals in the Washington area.

Dr. Koch 2

Over the years, Dr. Koch has helped train numerous veterinary ophthalmologists and has been responsible for teaching veterinary students the basic techniques of ophthalmology. He currently teaches clinical ophthalmology at the University of Pennsylvania two days a week and has written more than 50 professional articles and chapters that appear in veterinary texts. He has lectured throughout the United States and foreign countries and has received the prestigious Research Practitioner Award from the AVMA in 1976. Dr. Koch has also appeared in several instructional films and videos.

Tracy Kroll, DVM, Behaviorist

Tracy Knoll

Veterinary behaviorist Dr. Tracy Kroll has offered behavioral consultations for pets at Shaker Veterinary Hospital since 2000.

A native of Latham, NY, Dr. Kroll attended the State University of New York and the University of Albany, where she received her Bachelor’s Degree in Biology with a minor in Chemistry in 1993. She completed her veterinary education at Cornell University and was awarded her Doctorate of Veterinary Medicine in 1997. In 2002, she completed a residency in behavioral medicine.

Dr. Kroll is the head of the behavior department at Red Bank Veterinary Hospital and serves as a behavior consultant at Oradell Animal Hospital, in addition to her duties at Shaker Veterinary Hospital. She is the secretary of the Northern New Jersey Veterinary Medical Association and is a member of the American Veterinary Society of Animal Behavior.

Dr. Kroll and her husband, David, are the proud parents of two children, four-year-old Ethan and two-year-old Hannah. The family also includes Spike, a Rat Terrier/Italian Greyhound mix and a number of Oriental Exotic Goldfish. When she’s not busy with her duties at the hospital, Dr. Kroll enjoys spending time with her family, belly dancing and cheering on the Baltimore Ravens.

Board Certified Veterinary Surgeons – Veterinary Specialties Referral Center of Pattersonville

Joseph C. Glennon, VMD, Diplomate, American College of Veterinary Surgeons


Joseph C Glennon

Dr. Joseph Glennon established Veterinary Specialties Referral Center of Pattersonville in 1990. Dr. Glennon entered private practice in 1988 after completing his surgical residency at Cornell University. While at Cornell, he conducted surgical research, published several papers, qualified for board certification, and received the American Animal Hospital Association’s Outstanding Resident Award. He was elected a diplomate of the American College of Veterinary Surgeons in 1994.

Dr. Glennon interned at the Animal Medical Center in Manhattan from 1984-85. He is a 1984 graduate with honors from the University of Pennsylvania, and recipient of the Upjohn Award for proficiency in small animal medicine and surgery. He is also a research associate at Albany Medical Center, Rennselaer Polytechnic Institute (RPI) and a National Institute of Health (NIH) Grant Co-Investigator.


  • Diplomate, American College of Veterinary Surgeons
  • Member, New York State Veterinary Medical Society
  • Member, PennHIP
  • Consultant for DePuy Spine, DePuy Biologics
  • Consultant for American Animal Hospital Association Surgical Specialty
  • Accreditation Committee
  • Division Director – Schenectady Youth Hockey Association

Courtney L. Fitzpatrick, DVM, Diplomate American College of Veterinary Surgeons

Courtney L. Fitzpatrick

Courtney Fitzpatrick, DVM received her veterinary degree from the University of Florida College of Veterinary Medicine in 2006, where she was valedictorian of her class. She was immediately accepted into a rotating Internship in Small Animal Medicine and Surgery at Colorado State University which she completed in June 2007. Dr. Fitzpatrick was then accepted into a highly competitive Small Animal Surgery Residency at Cornell University Hospital for Animals . During the third year of her residency, she served as chief resident for both orthopedic and soft tissue services. While on staff at Cornell, she taught veterinary students, interns and residents, published numerous scientific papers , and completed her surgical credentials to sit for the American College of Veterinary Surgeons examination.

Upon completion of the surgical residency in July 2010, she joined the staff at VSRC bringing cutting edge approaches to treating surgical conditions that are currently utilized at Cornell University. In addition to her broad experience in orthopedic, soft tissue and neurologic procedures, Dr. Fitzpatrick’s areas of special interest include angular limb deformities, corrective osteotomies, surgical oncology, and minimally invasive procedures such as arthroscopy, thoracoscopy & laparoscopy. Her areas of research include canine tibial deformities, post-operative analgesia protocols, and canine osteosarcoma. Dr. Fitzpatrick will sit for the American College of Veterinary