Our Veterinarians

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Jeffrey Stupine, VMD

Medical Director & Veterinarian

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.

animal hospital

Tamara Borland, VMD


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.

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Steven Radbill, VMD


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.

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Sabrina Bailey, DVM


Dr. Sabrina Bailey joined the World of Animals team in 2023. At the young age of 8, her passion for veterinary medicine blossomed when her family adopted a dog from their local shelter. From there she volunteered and was involved in fundraisers to support the shelter. She never looked back on her passion and dream which lead her to earn her undergraduate degree in animal sciences with an emphasis in pre-veterinary medicine at the University of Findlay. She then went on to attend Ross University School of Veterinary Medicine on the beautiful island of St. Kitts, followed by her clinical year at Purdue University School of Veterinary Medicine where she earned her D.V.M. After graduation, she stayed in Indiana and worked at the city shelter where she gained a passion for surgery, radiology, and of course, caring for the shelter animals. In her off time, she enjoys reading, cross-stitching, going on hikes with her boyfriend Bruce, and spending time with their three cats, Skitty, DaBaby, and Hotel Hitch California aka Cali.
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Casey McMahon, VMD

Medical Director & Veterinarian

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.

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Marissa Burns, DVM


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


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®.

Dr. Cravens smiling and holding a small dog

Matthew Cravens, VMD


Bio coming soon.

Dr. Lee posing with a puppy in front of the practice

Amber Lee, VMD


Bio coming soon.

Miko Flasik, DVM


Dr. Flasik earned her DVM from Colorado State University in 2018. In her youth, she volunteered and worked for a local animal shelter. In college, she explored her passion for diversity and social justice. Now, as a veterinarian, Dr. Flasik connects with people and empowers them to make the best decisions for their furry friends. She loves helping people understand the complexities of their pets’ health concerns and providing them with the options and resources they need.

One of her most important pieces of advice for pet parents is to brush their pet’s teeth as often as possible. Dr. Flasik recommends finding a toothpaste flavor your pet likes and slowly helping them get used to having their mouth handled and their teeth and gums touched. It can take time, but the results are more than worth it! Good periodontal health is essential to good overall health. Another thing she wants pet parents to know is that pictures and videos of their pets are super helpful to their treatment. If your pet is limping, coughing, or just acting differently, a video can help Dr. Flasik get a better idea of what is going on.

At home, Dr. Flasik has a handsome black senior cat named Malcolm, who is in hospice care due to heart failure. Originally given a 6-month prognosis, Malcolm is still kicking after 3 years, and he regularly greets Dr. Flasik at the door when she returns home from work. Outside the practice, Dr. Flasik is a huge foodie who loves trying new restaurants, along with cooking and baking. She also enjoys singing karaoke and napping. But in addition to relaxing outside of work, Dr. Flasik also makes time to help others, having volunteered as a victim advocate at rape crisis centers in Colorado and Philadelphia for a combined 10 years.

Dr. Danielle Blair sitting on the porch with her dogs



Dr. Danielle Blair is a graduate of the University of Pennsylvania School of Veterinary Medicine. Dr. Blair is new to the area after working in private practice in the Washington DC area for the past 7 years.  She feels privileged to join the World of Animals family and have the opportunity to help pets and their owners.

Dr. Blair has special interests in soft tissue surgery and dermatology. Her philosophy is to treat every patient as if they were her own pet. She has a sweet rescued dog, Willow, and until recently had a beloved cat, Simba, who she adopted during vet school. In her spare time Dr. Blair enjoys painting, traveling, volunteering with local animal shelters, and knitting.

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