Meet Our Veterinarians

Brought together by their mutual love of pets and people, our friendly, knowledgeable vets understand the importance of animal companionship and are completely devoted to providing exceptional care to pet families in the Clifton Park area. Looking for a new vet? Take a few minutes to learn more about ours!

Alan Knott DVM

Dr. Alan Knott

Dr. Alan Knott is the Director of Operations at Cornerstone Veterinary Hospital Of Clifton Park. He enjoys all aspects of veterinary medicine and surgery, and has experience working with a wide variety of animals including dogs, cats, cows, horses, sheep, goats, pigs, alpacas and even an elephant! Dr. Knott truly loves spending time with people, fostering the human-animal bond with exceptional customer service and high-quality animal care. Dr. Alan Knott was born and raised in Ohio and spent his entire collegiate career at The Ohio State University, where he earned his Bachelor of Science degree in Agriculture in 2002 and his Doctorate Degree in Veterinary Medicine in 2006.  Dr. Knott is a Buckeye through and through, and is passionate about Ohio State Football. Dr. Knott enjoys spending time with his wife and two small children, and enjoys distance running, having completed several marathons.

Dr. Lisa Knott

Dr. Lisa Knott is the Medical Director at Cornerstone Veterinary Hospital Of Clifton Park. She enjoys all aspects of companion animal veterinary medicine and surgery, with a special interest in dentistry and dermatology. She grew up in nearby Burnt Hills, and went on to receive her Bachelor of Science degree in Animal Science from Cornell University in 2002, and her Doctorate in Veterinary Medicine from Iowa State University in 2006. Dr. Lisa Knott, along with her husband, Dr. Alan Knott, lived and worked in Northeast Ohio for nine years before returning home to the capital district to bring their passion for caring for animals and their owners to Clifton Park. Dr. Lisa enjoys spending time with her husband and their two children, as well as running and gardening in her spare time.

Lisa Knott DVM
Brian Curtin DVM

Dr. Brian Curtin

Dr. Brian Curtin is an associate veterinarian at Cornerstone Veterinary Hospital Of Clifton Park. He enjoys all aspects of companion animal practice, with particular interest in small animal internal medicine. A native of Delaware, Dr. Curtin completed his Bachelor of Science degree in Animal Science at the University of Delaware before earning his Doctorate of Veterinary Medicine from Oklahoma State University in 2004. A 10-year resident of the Capital District, Dr. Curtin enjoys classic films, traveling, and attending live music and sporting events.

Dr. Patricia Monast

Dr. Patricia (Mackey) Monast, as an associate veterinarian at Cornerstone Veterinary Hospital Of Clifton Park, enjoys preventative care medicine and dentistry.  She especially enjoys educating owners to be able to make the best decisions regarding their pets.  Dr. Monast has been a Capital District resident her entire life, other than the time she spent at Cornell University where she earned her Bachelor of Science in Animal Science in 2000 and her Doctorate of Veterinary Medicine in 2004.  Along with her husband, Dr. Monast enjoys attending the sporting events for her two young children and spending time outdoors.

Patricia Monast DVM
Melanie Brennan

Dr. Melanie Brennan

Dr. Melanie Brennan is originally from Stratford, Connecticut. At the age of eight, she decided she wanted to become a veterinarian and became very focused on that goal. She started working at a veterinary clinic in her hometown when she was 15, and has worked in the field ever since. She graduated with honors from the University of Connecticut in 2002, then continued on to Tufts Veterinary School in Massachusetts, earning her DVM in May 2006. After graduation, Dr. Brennan moved to the Capital Region, where she spent 3 years working at Colonie Animal Hospital in Albany. She then spent 10 wonderful years at Ballston Spa Veterinary Clinic, and is now thrilled to be starting an exciting new chapter with the Cornerstone Veterinary Hospital family beginning in October. Dr. Brennan’s favorite thing about being a general small-animal veterinarian is that she gets to see a wide variety of animals and treat many different types of illnesses. She loves the challenge of figuring out why an animal isn’t feeling well, and working closely with owners to get their pets better. She especially enjoys surgery, dentistry, ultrasound and internal medicine. She constantly strives to stay current on the latest research and new treatments available to her patients. Her lifelong passion for helping animals has been passed on to her two young daughters, and she and her partner Ashley are thrilled to also be expecting a baby boy in December 2019.

Dr. Diana

Bio coming soon.

dr. diana