Internal Medicine

Alysa Cook, DVM

Diplomate ACVIM

Alysa completed her internship and residency at Animal Medical Center after receiving a veterinary degree at the University of Georgia College of Veterinary Medicine. After completing her training in New York, she practiced at a large referral hospital in Atlanta. Her professional interests are endocrine disorders, infectious disease, immune-mediated disease and endoscopy. When she’s not working, Alysa enjoys live music, reading, and as a recent NYC transplant, exploring the city.

William Pullen, DVM

Diplomate ACVIM

Billy received a Bachelor of Science degree in Biology from the University of Georgia in 1996. He then attended the University of Georgia Veterinary College and received his DVM in 2000. After a rotating internship at Garden State Veterinary Specialists, he entered general practice. In 2002, he completed an internship at the University of Tennessee, before entering an internal medicine residence at the University of Pennsylvania. After residency completion, Billy was an education specialist at the University of Georgia Veterinary College training senior students, interns and residents. Entering into a private specialty practice in Tennessee kept him busy for several years but now he has been practicing in the New York area. His professional interests include gastrointestinal disease, immune-mediated disease, endoscopic and minimally invasive procedures, and critical care.

Nicole Shaw, DVM

Diplomate ACVIM

Nicole earned her Bachelor of Arts degree in History and Anthropology from the University of Pennsylvania in 1992 and her Doctor of Veterinary Medicine from Tufts University School of Veterinary Medicine in 1999. Upon graduation, Nicole pursued a rotating internship in Medicine and Surgery and a residency in Internal Medicine at the Animal Medical Center in New York City from 1999 to 2002. She is a Diplomate of the American College of Internal Medicine. Nicole had been a staff internist at Oradell Animal Hospital from 2002 to 2006 before joining VERG in the same capacity in April 2006. Her special interests include feline asthma, renal disease, gastrointestinal disease, and topics in endocrinology.

When not at work, Nicole enjoys spending time with her husband and daughters, or playing with her sweet rescue dog, Bernie (pictured).

Kelly A. Gavin, DVM

Kelly received her Bachelor of Science degree in Molecular and Cell biology at the University of Connecticut and her Doctor of Veterinary Medicine from Tufts University in 2001. After graduation she went on to a rotating internship at the Animal Medical Center in Manhattan. She then worked for several years at Park East Animal Hospital on the Upper East Side performing general medicine, emergency medicine, and surgery. Her interest in internal medicine brought her to the University of Pennsylvania in Philadelphia where she completed a three year residency in internal medicine. Kelly’s professional interests include: endocrinology, immunology, nephrology, infectious disease, and critical care.

When not at work Kelly enjoys running, ocean sports, yoga practice, and travelling. Kelly lives in Brooklyn with her cats Gromit, Spiderman, and Tabitha.

Carolyn Clarke, DVM

Diplomate ACVIM

Carolyn received her Bachelor of Arts degree in Spanish from Binghamton University in 1998, her Bachelor of Arts degree in Biology from Queens College in 2001 and her Doctor of Veterinary Medicine from St. George’s University in 2005. After graduation she completed a rotating internship at Fifth Avenue Veterinary Specialists in Manhattan and then a three year Internal Medicine residency at Gulf Coast Veterinary Specialists in Houston. Carolyn’s professional interests include endocrinology, gastroenterology, infectious disease and critical care.

When not at work, she enjoys reading, traveling and spending time with family and friends. Carolyn lives in Long Island with her dog Calla and her two cats, Parker and Dexter.


Sarah Winzelberg, VMD

sarahDr. Winzelberg completed her undergraduate training at Dartmouth College and went into the business world for a few years as a business management and strategy consultant before continuing to veterinary school. Her veterinary training was completed at the University of Pennsylvania School of Veterinary Medicine, after which she continued onward to do an internship and residency at the Animal Medical Center. Professionally, her main areas of interest include infectious disease, hematology and transfusion medicine, respiratory disease, gastroenterology and renal disease, with a special place in her heart for feline medicine.

Outside of work, she loves to travel. She is a wine aficionado, a talented chef in the kitchen, and an avid fan of spin classes.