Our Veterinarians


Together, we have established a level of medical excellence and service that has made us one of the most respected, state-of-the-art animal hospitals on Staten Island.               

Our heartfelt manner is genuine and your trust in us is the foundation of our practice. We consider it our responsibility to be there for you for unscheduled emergency services and routine care with our extended office hours until midnight, six days a week and Sundays until 8:00pm        


Our doctors are on call after midnight and our veterinary assistants stay in the Intensive Care Unit throughout the night. If you have an emergency, just call the main phone number and we will take care of the rest. In addition, as back-up, some of our hospital staff live in housing attached to the animal hospital. 


Dr. Robert B. Cohen

A graduate of the prestigious University of Pennsylvania School of Veterinary Medicine and has been in practice for nearly 38 years. He was awarded the coveted American Animal Hospital Association Student Achievement award for his outstanding scholastic and clinical performance.  

Dr. Cohen continued his post-graduate veterinary medical and surgical training at the world’s largest animal hospital, the Animal Medical Center of New York (AMC). He eventually became Head, Section of Cardiology, and Director of Clinics at that world-class facility. After leaving the AMC, he created a high-tech innovative computer-based cardiac and internal medicine consulting service for veterinarians, which is world renowned.


Dr. Theresa Ann Cavallaro

a 1992 graduate of Mississippi State University. She was the recipient of the President Scholar Award for Excellence in Academic Achievement for two consecutive years. She was formerly the Medical Director of South Shore Veterinary Practice from 1995 until 2002, when she and Dr. Cohen established the larger, state-of-the-art facility at Bay Street Animal Hospital.  

Dr. Cavallaro is considered by her professional peers as an extraordinarily gifted veterinarian. Her genuinely heartfelt manner and caring nature set the tone for our animal hospital. Coupled with her track record of over 22 years of veterinary medical excellence, she is sought out by many Staten Islanders to provide expert health care for their beloved pets.


Dr. Justine Candrilli

Graduated from Ross University School of Veterinary Medicine in 2016. Her interest in integrative medicine began at the University of Florida, where she completed her clinical rotation.  

Dr. Candrilli is currently enrolled at the Chi Institute of traditional Chinese Veterinary medicine. Upon completion at the Chi Institute, Dr. Candrilli will be incorporating acupuncture into her traditional veterinary practice as a certified Veterinary Acupuncturist. 

Dr. Candrilli’s interests in herbal medicine, laser therapy, and rehabilitation has allowed her to integrate her knowledge of western medicine and skills into a holistic approach.


Dr. Peter Donchik

A Brooklyn native who received a BS degree at Brooklyn College before entering The University of Parma (Italy), where he received his Doctorate of Veterinary Medicine in 1984. He worked for 20 years as a Director of Bay Ridge Animal Hospital, which he left in late 2004 to join Bay Street Animal Hospital.  

Dr. Donchik is a first-rate veterinarian who brings his skills, compassion, and kindness to the Bay Street practice. 


Dr. Thomas Parker

Was born and raised in Brooklyn. He received a Bachelor of Science (Biology) from St. Francis College, Brooklyn. He completed his graduate work at Gregorio Araneta University, Manila, Philippines, where he received his Doctorate of Veterinary Medicine  

From 2001 – 2017, Dr. Parker was owner/partner of the Park Slope Veterinary Care facility. He is known for his calm, caring nature and his ability to communicate with pet owners and co-workers. His exceptional skills include radiology and ultra sound diagnostics, emergency medicine, nutritional medicine, and teaching. His extensive background in the US and abroad includes working with farm and marine animals. He is a certified SCUBA diver.