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

Meet Our Team

Primary Care Doctors

Team

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. 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.

Alexandra Pietrzyk, DVM

USDA Accredited

Dr. Pietrzyk grew up in California and completed her bachelor’s degree with a major in Animal Biology and a minor in Communication at the University of California. She pursued her dream to help animals and graduated from the prestigious Davis School of Veterinary Medicine. After completing her DVM, Dr. Pietrzyk moved to New York and completed an internship in emergency and internal medicine at BluePearl in Manhattan. Since completing her internship, Alex has been practicing small animal medicine here in the city for the past six years.

Outside of UAH, Dr. Pietrzyk loves strolls in her Brooklyn neighborhood and hiking or exploring in other cities. She also enjoys working with flowers through volunteering for BloomAgain and studying ikebana with the school of Ohara.

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

Ultrasonographer

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