Donald Factor, DVM

Doctor Don Factor is a 1983 graduate of the New York State College of Veterinary Medicicine at Cornell University. He is an active member of the American Veterinary Medical Association, the New York State Veterinary Medical Society, the Hudson Valley Veterinary Medical Society, the Association of Avian Veterinarians, the Association of Exotic Mammal Veterinarians, the Association of Reptile and Amphibian Veterinarians and routinely participates in the online discussion forum of exotic veterinarians from around the world. Dr. Factor is also a member of the Board of Directors of the Orange County Animal Emergency Service in Middletown, NY. In his capacity on the board, he is responsible for maintaining the quality of medical care provided to emergencies from all Veterinary practices in Orange County and beyond.
Dr. Factor created and taught the course in Exotic Animal Medicine and Care at the accredited program for Licensed Veterinary Technicians at SUNY Ulster for three years before handing the course over to another professor.

With few exceptions, Dr. Factor has owned pets of every species he treats and has first hand experience in their husbandry and care. He has been a member of the Association of Avian Veterinarians since its inception, and maintains his expertise in all species, including dogs and cats by constant learning and continuing education. His only desire is to provide your pet with the best medical and surgical care possible.

Krysten Santiago, DVM

Dr. Santiago grew up in Long Island, NY where her own pets and volunteer time at local rescues, fostered her love of animals. She received her Bachelor of Science at Newburgh’s own, Mount Saint Mary College. She pursued her degree at Ross University School of Veterinary Medicine, housed on the Caribbean island of St. Kitts. She returned to the United States for her clinical year at Cummings School of Veterinary Medicine, Tufts University and has since, settled back into the Hudson Valley. While she loves to care for all animals, she has a special interest in birds and exotic pets. She is a member of the American Veterinary Medical Association, the New York State Veterinary Medical Society, the Hudson Valley Veterinary Medical Society, the Association of Avian Veterinarians, the Association of Exotic Mammal Veterinarians, the Association of Reptile and Amphibian Veterinarians

She shares her home with Lulu the pineapple conure, Midna the chinchilla, and Aristotle the crested gecko. In her spare time, she can be found hiking local trails, painting, or enjoying a good book. 

Susan, LVT



Susan (Sue) oversees all daily veterinary office operations to help ensure that all the pets we see are treated as if they are one of our own. A routine exam and preventative testing can be very scary and stressful for your pet if they are not treated appropriately. She makes sure our team of professionals is trained to be caring, loving and calming to help ensure that your pet will feel as stress-free as possible. She is the friendly face who will come give your pet some love as she passes through the lobby. Susan is always available to speak to our clientele about any questions or concerns they may have regarding their pet or visit.

As a licensed veterinary technician as well, she not only oversees every patient's care but is directly involved in the daily care and monitoring of our hospitalized and surgical patients. Animals are her passion in life. She received her Bachelor's degree in Veterinary Technology from Mercy College and has been working in the veterinary field for 18 years and couldn't think of a better career choice. 

Susan has had first hand experience how scary it can be to have a sick pet and will do her best to help ease anyone through such a difficult time.

Over the years, she has rescued many pets of different species and understands the amazing human-animal bond. She enjoys helping create this bond for others through the adoption of animals in need.

Kate, LVT


Jon, LVT




Deirdre has been working as a Veterinary assistant for many years. Her love for animals started at a young age and she found this is the only type of work to make her happy. She has worked with many types of animals from hamsters to horses. While not at work, she enjoys spending time with her family which includes, 2 dogs, 3 cats, a turtle, 2 Bearded dragons and an Emerald Swift.


Client Care Coordinator

Erica is from California, but has come to make her home in NY. She graduated from California Polytechnic State University with a B.S. in Animal Science. Since then, she has been working as a veterinary assistant and client care representative. Erica is looking to continue her education and become a Licensed Veterinary Technician. She is a proud mom to her two fur babies Brutus and Luna.


Client Care Coordinator

Evelyn earned her Bachelor's Degree in English from Northeastern University and has an extensive background in captioning and print purchasing. Her greatest achievement is being mom to her 12 year old triplets Audriana, Domenica, and Darius. She also is the proud momma of her lovable pitbull, Rhaji. Now that all of her babies are a little older, Evelyn decided the time was right to finally follow her dream of working with animals. She is excited and thankful each day she gets to meet and help owners and the myriad of different species we see.


Animal Care Supervisor

Anne managed a local pet resort and daycare for many years before joining our team. She brings her love of all animals to work with her each day and will always ensure they are cared for like they are her own. Anne is definitely our "crazy cat lady", but we would not have her any other way. She is often wearing cat apparel, carrying a cat purse and wearing cat sunglasses! Anne shares her home with 6 crazy kitties.

Max (& Charlie)

Animal Care

Max started volunteering in our office when he first entered high school. We quickly realized his hard work and dedication and made him a team member. Max was accepted to Cornell University and has been attending college there and working with us whenever he is home on break. In the future, we hope to have Max join our staff as one of our Doctors.


Animal Care

Jamie graduated from Ithaca College with a degree in Writing, but has always had a special spot for animals, from the tiniest kitten to the biggest reptile. As part of our animal care team, Jamie makes sure your animal is well taken care of. She aspires to learn more about the animals that come through our doors and hopes to pursue her veterinary technician license. When she is not working, she likes to spend time with her menagerie of animals which includes ball pythons, a Bearded dragon, an Amazon parrot, a rabbit, and 2 cats.

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(845) 565-0804

41 Fullerton Ave, Newburgh, NY 12550, USA

©2017 by West End Veterinary Office