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  • Mon-Fri : 8am-7pm
  • Sat & Sun Closed
  • Mon-Fri : 8am-7pm
  • Sat & Sun Closed
Call or text us (212) 288-8884

Meet Our Team

Primary Care Doctors


Lawrence Zola, DVM

Medical Director

USDA Accredited

Dr. Zola has been the medical director of University Animal Hospital since 1989. He earned his Bachelor’s Degree in 1978 from the University of Pennsylvania. Dr. Zola attended Cornell University College of Veterinary Medicine where he received his D.V.M. in 1982. Following veterinary school, he completed an internship in medicine and surgery at the prestigious Animal Medical Center in New York City.

Dennis Chan, DVM

USDA Accredited

Dr. Dennis Chan joined the University Animal Hospital team in 2020. Although he grew up in Queens he pursued his dream of becoming a veterinarian at Western University of Health Sciences in California. After getting his DVM in California, Dennis moved back to Manhattan and completed a small animal rotating internship at The BluePearl Specialty and Emergency Pet Hospital. Dr. Chan then moved outside of the city where he spent a year pursuing specialty training in Internal Medicine at The University of Pennsylvania: Matthew J. Ryan Veterinary Hospital. Ultimately, his love for New York brought him back to NYC!

Outside of veterinary medicine, Dr. Chan loves all things outdoors (camping, hiking, backpacking). He also enjoys music, Muay Thai, and spending time with his friends and family.

Callie Migden, DVM

Dr. Callie Migden is a native New Yorker and grew up on Long Island. Dr. Migden received her Bachelor of Science Degree from the University of Delaware. She then earned her DVM degree from Ross University School of Veterinary Medicine. Her special interests include general surgery and internal medicine.

Callie’s interest in the veterinary field started very early and prompted her to start her career as a veterinary assistant and as a specialist working with primates when she lived in Florida. Her work experience and love for animals paved the path for applying to Veterinary School.

Dr. Migden is excited to join the UAH family and make a difference in the veterinary field. Outside of work she loves to go to the movies, read, and try all the new restaurants around the city.

Specialty Care

Dr. Richard Greene

DVM, Diplomate ACVS
(Board Certified – Veterinary Surgeon)

Richard Greene, DVM, Diplomate ACVS graduated from Colorado State University and is a board-certified surgeon. He has over 40 years of experience and has traveled extensively lecturing at veterinary conferences all over the world and is published in several prestigious veterinary texts. He was a resident and staff member at the Animal Medical Center in NYC. Dr. Greene has performed many thousands of surgeries over his career.

Dr. Karen Cherrone

DVM, Diplomate ACVS
(Board Certified – Veterinary Surgeon)

Dr. Cherrone received her Bachelor of Science degree in Animal Science from Cornell University in 1995 and her Doctor of Veterinary Medicine Degree from The Ohio State University in 1999. She then completed a small animal internship in medicine and surgery at The Animal Medical Center in New York City in 2000. Following the internship, she completed a one-year small animal surgery internship and a comprehensive three- year residency program in soft tissue, orthopedics and neurosurgery at Long Island Veterinary Specialists in 2004.

Following her residency, Dr. Cherrone has served as a staff surgeon at specialty, referral, and emergency hospitals on Long Island and in New York City, as well as a Director of Surgery at The Bergh Memorial Animal Hospital of the ASPCA. She has received board certification and is a Diplomate of the American College of Veterinary Surgeons. With 20 years of experience, she has performed thousands of surgeries over the years.

Sandra Tapia


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