Jeffrey Stupine, VMD
Medical Director & Veterinarian
- South Philadelphia
About Dr. Stupine
Dr. Jeffrey Stupine graduated from George Washington University in 1999, earning a degree in Economics. After a successful career as an equity trader, he returned to school to pursue his true passion of Veterinary Medicine. He received his V.M.D in 2010 from the University of Pennsylvania School of Veterinary Medicine and has worked in both private practice and shelter medicine since. His veterinary interests include radiology, heart disease, and parvovirus. Dr. Stupine is currently the Medical Director for 3 World of Animals locations. When he’s not at work he enjoys spending time with his wife, daughter Lilly, and 1 year old Cavapoo Rosie.
Tamara Borland, VMD
Veterinarian
- Bethayres
About Dr. Borland
Dr. Tamara Borland joined the World of Animals team in 2017. Her passion for veterinary medicine began at the early age of 12 volunteering for a local veterinary hospital. She earned her undergraduate degree at Boston College then went on to attend the University of Pennsylvania School of Veterinary Medicine where she earned her V.M.D. in 2007. After graduation, she headed west to the San Francisco bay area enhancing her knowledge and skills set. She feels honored to be a part of caring for pets and the humans they love, and focuses on delivering excellent patient care with understanding and compassion. Her special interests are dentistry, dermatology, and surgery. In her off time, she enjoys indulging her amateur foodie title exploring new restaurants, going on hikes with her dog Picxie, and feeding her love for music, art, and literature.
Steven Radbill, VMD
Veterinarian
- Bethayres
About Dr. Radbill
Steven Radbill VMD is a graduate of the University of Pennsylvania School of Veterinary Medicine. Dr. Radbill is newly associated with World of Animals after successfully owning and operating Radbill Animal Hospital in Center City Philadelphia and in Northeast Philadelphia for over 40 years. Additionally, Dr. Radbill served on the Pennsylvania Board of Veterinary Medicine for 8 years. He is the author of the book Questions and Answers Dog Owners Ask Their Vet and was the Veterinary Contributor to Evening Magazine on ABC.
Dr. Radbill feels privileged to be part of the World of Animals team of Veterinarians and Staff who are dedicated to caring for our four-legged friends. His special interests are Laser Surgery, Dermatology, and Geriatric Medicine. In his spare time, Dr. Radbill enjoys biking, reading, gardening, and spending time with his family.
Casey McMahon, VMD
Medical Director & Veterinarian
- Rittenhouse
About Dr. McMahon
Dr. Casey McMahon earned a degree in Pathobiology at the University of Connecticut. She then attended the University of Pennsylvania where she received her Veterinary Medical Degree. After graduating she moved to Boston where she worked with dogs, cats, rabbits, guinea pigs and chickens. Dr. McMahon and her cat Bill are excited to be back in Philadelphia and be a part of the World of Animals family.
Marissa Burns, DVM
Veterinarian
- Bensalem
About Dr. Burns
Dr. Marissa Burns’ devotion to veterinary medicine began at the early age of 5 years. She took her passion of caring for her grandmother’s boxers and later started working in the field as an animal care attendant. She earned her undergraduate degree at Mansfield University in biology then went on to attend school at Iowa State University College of Veterinary Medicine where she earned her D.V.M. in 2014. She has since spent her time devoted to small animal wellness and emergency medicine. Her veterinary interests are surgery, dentistry, urgent care, and pocket pets. In her free time, she can be found with her husband, daughter, and two dogs Jaxon and Etta.
Laura Tancredi, DVM
Veterinarian
- Mayfair
About Dr. Tancredi
Dr. Laura Tancredi attended veterinary school at Ross University School of Veterinary Medicine, on the Caribbean island of St. Kitts, and completed her clinical year at Purdue University. Her professional interests include diagnostic imaging, zoonotic disease and public health, and low stress handling. Dr. Tancredi holds a Low Stress Handling® Silver Certification and is a Cat Friendly Certified Veterinary Professional®.
Margot Weissman, DVM
Veterinarian
- Mayfair
About Dr. Weissman
Dr. Margot Weissman was born and raised in Westchester County, New York. Growing up with a dog and an immense love for animals, it was clear that she would find a way to pursue her passion for caring for animals. Dr. Weissman graduated from the University of Michigan with a degree in International Relations and a focus in Public Health. After graduating with honors from University, she went on to enlist in the Israeli Defense Forces, serving in Oketz, the elite K9 unit of the Israeli army. She served as a dog trainer and caretaker for search and rescue dogs, attack dogs, and weapon-detecting dogs.
Following her service, Dr. Weissman received her degree in veterinary medicine at Cornell University with a focus in small animal medicine and surgery. During her degree, she spent a summer in Bolivia volunteering for a clinic responsible for the wellness of the local community’s dogs and cats. Throughout her time in undergraduate and graduate school, she participated in clinical and data research for cancer and endocrine diseases. After graduating from her degree in veterinary medicine, she completed a one-year internship in surgery and medicine with a unique focus in animal cruelty and shelter medicine at the ASPCA hospital in Manhattan and has since been practicing general practice medicine and surgery for household cats and dogs. Dr. Weissman believes in prioritizing patient and client care and comfort. When she is not at the hospital, she enjoys traveling, hiking, painting, and exploring fun areas in the city.
Marissa Snyder, VMD
Veterinarian
- Bethayres
About Dr. Snyder
Dr. Marissa Snyder is originally from Connecticut and found her passion and love for animals early in life, always very involved with her family’s pets’ care. She earned a bachelor’s degree in Biology from the Georgia Institute of Technology, at the same time volunteering at local animal shelters and working at a local veterinary hospital as support staff. She then pursued her dream of becoming a veterinarian, graduating from the University of Pennsylvania and earning her VMD degree. After graduation, she was back in Atlanta for a year-long internship, continuing to hone her skills and knowledge at a specialty hospital with a focus in internal medicine, surgery, and emergency medicine.
Dr. Snyder is thrilled to be back in the Philadelphia area and to be a part of the incredible World of Animals team. She is dedicated to providing excellent and compassionate care to her patients and their families. In her free time she enjoys spending time with her boyfriend and their dog, Louie, being active whether it’s a bike ride or walk along a trail, and fueling her love for coffee and great food with all of the great spots Philly has to offer.
Deborah Comings, VMD, CVA
Veterinarian
- Bensalem
About Dr. Comings
Dr. Deborah Comings knew she wanted to be a veterinarian from the age of eight—and she’s been dedicated to that goal ever since. She earned her B.A. in Biology from Goucher College, followed by an M.S. in Animal Science from the University of Delaware. She completed her veterinary degree at the University of Pennsylvania in 2006 and has been proudly serving the Bucks County community ever since.
In 2023, Dr. Comings expanded her skill set with advanced training at Chi University, becoming a Certified Veterinary Acupuncturist (C.V.A.). She thoughtfully integrates both Western and Eastern medical approaches to create individualized treatment plans tailored to each pet’s unique needs.
Dr. Comings enjoys the intellectual challenge of complex medical cases and has a special interest in caring for exotic and small companion animals. She is especially known for her calming presence with nervous rodents—and she’s even been known to hypnotize a chicken or two!
Outside of veterinary medicine, Dr. Comings shares a love of Kenpo martial arts with her husband and son, and they enjoy training together as a family. When she’s not at the clinic or on the mat, she’s happiest near the water—snorkeling, SCUBA diving, or simply enjoying the outdoors. Her two cats, however, prefer a quieter lifestyle and are not fans of martial arts practice.
