Our caring and compassionate veterinary care team!

Meet the veterinarians and medical staff at North Shore Animal League America’s Pet Health Centers! We’re pleased to provide exceptional vet care for your dogs, cats, puppies, and kittens! Please call us at 516-883-2000 to speak to one of our caring veterinary staff members!

Dr. Mark Verdino

Senior Vice President and Chief of Veterinary Staff

Dr. Verdino joined our medical team as Senior Staff Veterinarian and his passion, and commitment to improving animal health and welfare has been evident from the start. In 2011, Dr. Verdino assumed the role of Chief of Veterinary Staff. In this role he has focused on expanding the capabilities and scope of medical care at the Alex and Elisabeth Lewyt Veterinary Medical Center.

Dr. Verdino holds a Bachelor of Science degree from Fairfield University, a Master of Business Administration (MBA) degree from New York University, and earned his VMD from the University of Pennsylvania’s School of Veterinary Medicine. Prior to joining NSALA, he worked in private practice at both Caring Hands Animal Hospital and Old Dominion Animal Health Center in Virginia. During that time, he worked closely with the Animal Welfare League of Arlington on medical cases.

Prior to achieving his veterinary degree, Dr. Verdino worked in investment management for the Goldman Sachs Group. Ultimately, his love of animals drove him to pursue a career in veterinary medicine and animal welfare.

His professional interests include soft-tissue and orthopedic surgery, pain management, rehabilitation, and alternative medicine. Dr. Verdino attended the Chi Institute of Traditional Chinese Medicine and is certified in veterinary acupuncture. In his spare time, he enjoys biking, skiing/snowboarding and spending time with his wife and two children. He also has two lovable yet not-so-smart pugs.

Dr. Marina Tejada

Supervising Veterinarian – Medical Center

Dr. Tejada graduated from the Cornell University College of Veterinary Medicine in 2010. A Queens native her family adopted their first dog from North Shore Animal League America when she was 7, she told her mother she was going to work her one day. She has been at North Shore Animal League America since 2012, serving as a Supervising Veterinarian since 2014. Her special interests include shelter medicine, surgery, emergency response, mentoring veterinary students. She is currently on the Alumni Association Executive Board at the Cornell veterinary college.  She became a Maddie’s Fund Shelter Medicine Fellow at Cornell University in 2017. In her free time, Dr. Tejada enjoys traveling, yoga, and spending quality time with her adopted rescues- three cats and one dog.

Dr. Juliana Dunlop

Supervising Veterinarian – Pet Health Center

Dr. Juliana Dunlop grew up on Long Island and received her undergraduate degree from CUNY Queens College and veterinary degree from the St. Matthew’s University in Grand Cayman. She completed her veterinary clinical training at the University of Pennsylvania.  She joined the North Shore Animal League America team in July 2015, and is currently a Supervising Veterinarian in the Pet Health Centers.  Dr. Dunlop’s special interests include surgery, preventive care and dentistry. When not at work, Dr. Dunlop enjoys the beach and spending time with her family. Her family consists of a wonderful husband and daughter, a Pitbull mix, Bruno, a Shih Tzu Forest, a Chihuahua mix, Scooter and three cats, Casper, Baci and Tony.​ 

Dr. Gerard Laheney

Senior Veterinarian – Shelter Medicine

Like many others, Gerard wanted to be a vet since the young age of 9. Having grown up in Port Washington, he learned from an early age of the North Shore Animal League as his family adopted their first of many animals in 1978. At the age of 15, and just recently having spoken with a friend of the need for a job, Gerard received a letter from North Shore recruiting local high school students. Gerard spent all of his high school years working as a kennel associate and later on the rescue team, and developed a passion for fostering neonate puppies. He went on to the University of Massachusetts at Amherst and received his BS in Animal Science (Pre Vet) and attended veterinary school at the University of Liverpool, UK graduating with a BVSC/MRCVS in 2001. He spent a year in private practice and found the most fulfilling aspect of this job was his contracted work with a local municipal shelter. In 2003, Gerard decided to ‘return to his roots’ and pursue a career at North Shore in Shelter Medicine. In 2007, Gerard was named a Senior Veterinarian and is primarily responsible for the intake of hundreds of animals weekly and managing the health of the 300-400 adoptable animals at North Shore.

Gerard currently shares his home with a rescued Catahoula, “Finn”, and a one-eyed cat, “Frisbee”.

Dr. Erin Carney

Dr. Carney graduated from the Royal Veterinary College of the University of London in 2012. Upon her return to the states, she began her career at North Shore Animal League America as part of the internship program for new graduates. She is currently a staff veterinarian with special interests in surgery and shelter medicine.

In her free time, Dr Carney enjoys traveling and spending quality time with friends, family and her fur babies, Toby and Misha.

Dr. Illoneete Cohen

Dr. Cohen graduated from St. George’s University School of Veterinary Medicine, and completed her clinical training at UPENN. She then completed a 1 year rotating small animal internship at the ASPCA in New York City. She has since been working at North Shore Animal League as a staff veterinarian. Her special interests include surgery and internal medicine. In her spare time she enjoys playing video games and board games. Her and her husband share their home with their two rescue pets Tiger Lilly and Jack Sparrow.

Dr. Juliette de Venoge

Dr. Juliette de Venoge, a Manhasset, NY native, is proud to work at North Shore Animal League America (NSALA), a place she had always enjoyed visiting with her family as a young girl. Her passion for animals from an early age ultimately inspired her to pursue a career in veterinary medicine.

Dr. de Venoge graduated from Binghamton University in 2015, and quickly hopped on a plane to St. Kitts, West Indies to attend Ross University. There she earned her Doctorate of Veterinary Medicine with Highest Honors and then completed her clinical studies at Cornell University in 2019.  

Shortly after graduating, Dr. de Venoge was eager to join the medical team at NSALA. She enjoys being part of the endless success stories of our rescued and client-owned pets. She looks forward to meeting you and your furry friends!

Dr. Atlee Douglas

Dr. Douglas grew up on a farm in the Caribbean. The primary crops were bananas and coconuts. They also produced chickens, as well as honey bees and sheep. His bachelor’s degree is in tropical agriculture. He came to the United States in 1981 after working as an agriculture officer on the Caribbean island of Dominica and then attended veterinary school at Tuskegee University in Alabama. Dr. Douglas worked as a small animal practitioner in Brooklyn for two years before joining the staff at North Shore Animal League in 1990. His primary focus at the League is high volume Spay/Neuter.

Dr. Marcia Perkins

Marcia always had a love for both science and animals. So, naturally, she was excited to combine both passions with a career in veterinary technology. After receiving her degree as a LVT, it wasn’t until she worked at Animal Medical Center in NYC as a surgical anesthesia technician that she began to think about continuing her studies to become a veterinarian. After working at the AMC for over 10 years, she applied and was accepted to St. Matthew’s University in Grand Cayman Islands, WI, and performed her clinical rotation at the University of Georgia. After graduating in 2016, Dr. Perkins returned to her hometown in the Bronx, NY, and worked as an associate veterinarian in a small animal practice (VCA, Banfield). When she’s not working, Dr. Perkins enjoys reading, vegan cooking, traveling and dancing. She also loves spending time with family, friends and her cat Katy.

Dr. Deirdre Seifried

Dr. Seifried, a Long Island native, spent many weekends during her childhood visiting North Shore Animal League America. She earned her undergraduate degree in mechanical engineering from Lafayette College. She later graduated from St. George’s University School of Veterinary Medicine in Grenada and completed her clinical year training at the University of Minnesota. Dr. Seifried completed a one-year internship program in small animal medicine and surgery at the ASPCA Animal Hospital in NYC. Following that training she joined the North Shore Animal League America team as a staff veterinarian. In her free time, Dr. Seifried enjoys spending time with her family, friends and her rescue dog, Keller.

Dr. Paul Thiergardt

A native Long Islander, Paul Thiergardt, DVM, studied biology at the University of Southern California, and Hofstra University, at the undergraduate and graduate level. After working for many years in human medicine at North Shore University Hospital in Manhasset, Dr. Thiergardt was admitted to Ross University School of Veterinary Medicine and earned his Doctorate of Veterinary Medicine in 1988.

In 1988, Dr. Thiergardt began his career at North Shore Animal League America, and private practice at the Shirley Veterinary Hospital. in 1989. In 2007, he left private practice and was instrumental in the infancy and development of the Wellness/Pet Health Center at North Shore Animal League America.

In his leisure time, Dr. Thiergardt enjoys gardening, motorcycling, and spending time with family and friends.

Dr. Katarina Valen

Dr. Valen received her DVM degree from The Ohio State University School of Veterinary Medicine in 2008. Upon graduation she completed two year long specialized internship training programs, one in small animal medicine and surgery at the ASPCA Animal Hospital in NYC and one in shelter medicine as the recipient of the Petring Grant at the North Shore Animal League America. Following the completion of these programs, she entered into nearly a decade of private practice focusing on small animal medicine and surgery. While she enjoyed being part of the beauty that is the human-animal bond, she ultimately missed the global impact shelter like North Shore Animal League America offer and is glad to have returned.

Dr. Gamal A. Yousry

Dr. Gamal A. Yousry, DVM, is a graduate of Cairo University in Egypt and holds a Master Degree in Microbiology from Long Island University Brooklyn. Dr. Yousry attended Tufts University for a duration of a year to obtain the A.C.F.V.G degree to finalize the ability for Veterinary practice in the United States. He then went on to serve an externship at the University of Tennessee training in internal medicine and surgery of small animals.

Dr. Yousry has been practicing Veterinary Medicine since 1978, the last 8 years at the renowned North Shore Animal League America located in Port Washington, after serving 20 years of practice and ownership at Lawrence Animal Hospital, the oldest acclaimed veterinary hospital in Queens. Dr. Yousry’s practice centralizes around Vaccination against diseases, medication against suffering from infections or illnesses, performance of minor to complex surgery and conduction of diagnostic tests such as X-ray, EKG, ultrasound, and laboratory work. Yousry is also a worker at the City of New York in Veterinary public health services.

Yousry recently received the Veterinary Merit Award at the Veterinary Medical Association of New York City, presented to members in recognition of their significant contributions to the Veterinary Medical Association of New York City and the advancement of the veterinary profession.

Dr. Kaitlyn Zaino

Dr. Zaino was born and raised on Long Island. She attended Stony Brook University for her undergraduate degree in developmental biology. She received her veterinary medicine degree from Ross University in St. Kitts and completed her clinical training at Tufts University. Shortly after graduation, she joined North Shore Animal League team as a staff veterinarian. Although Dr. Zaino loves all aspects of veterinary medicine, she really enjoys neurology as well as educating clients about their beloved companions. In her free time, Dr. Zaino enjoys kickboxing, cooking and baking. She also loves spending time outside hiking and kayaking. She currently has two rescued cats, Milton and Grace who have their own special needs.