About Us

The finest in veterinary expertise.

Veterinary Doctors

Dr. Thomas Collins, DVM
Veterinarian and Practice Owner

Thomas Collins

Dr. Thomas Collins was born in Washington, DC, and raised in Northern Virginia. He graduated from Oregon State University College of Veterinary Medicine in 1999. He completed an internship in small animal internal medicine, surgery, and emergency medicine at South Paws Veterinary Referral Center in Fairfax, Virginia, in 2000. Dr. Collins has been practicing veterinary medicine in Northern Virginia since 1999 and at Ballston Animal Hospital since 2003. He purchased the hospital from the previous owner in 2006. Dr. Collins currently lives in Arlington with his wife, along with two dogs (Ben and Hook) and two cats (Pip and Alyeska)-all of them local rescues.

Dr. Gretchen Tripp, DVM

Gretchen Tripp

Dr. Tripp originally hails from Conklin, New York. She received a BS in Biology from Southampton College, Long Island University in 1987. Prior to attending veterinary school, she worked for Northeast Fisheries Service and tended bar in Cape Cod, Massachusetts. Dr. Tripp received her Doctor of Veterinary Medicine degree from Tufts School of Veterinary Medicine in 1992. Her thesis involved the study of orangutans at Tanjung Puting Reserve in Borneo. She has been happily practicing veterinary medicine in Northern Virginia since 1993 and joined Ballston Animal Hospital in February 2006. She lives in Fairfax with her husband, two sons, two dogs, two cats, one leopard gecko, one fire belly toad, and five fish.

Dr. Lynne Gallitz, DVM

Lynne Gallitz

Dr. Lynne Gallitz has lived in Northern Virginia since elementary school (for you natives, she attended Rockledge Elm, Springdale Elm, Fred Lynn Middle, Rippon Middle, and Woodbridge HS). She attended Randolph-Macon College in Ashland, Virginia, where she obtained her bachelor's degree in both, Biology and Environmental Studies.

Having a special place in her heart for Georgia-the rest of her family lives there-she was bound and determined to become a Georgia Bulldog herself. Moving to Athens, Georgia, after graduation, where she dabbled in GIS (Geographic Information Systems = mapping), she established residency to apply for veterinary school. She graduated from the University of Georgia College of Veterinary Medicine in 2003 and moved back to Northern Virginia. She has been practicing small animal medicine in this area since graduation, joining Ballston Animal Hospital in August 2006.

Her favorite activities outside work are playing Ultimate Frisbee, hanging out with friends, watching football-mostly college (it's her southern religion-Go Dawgs!), cooking/grilling, in general being outside in nice weather, and staying active with the DC Dawgs Alumni group. She lives in Arlington with her husband and son, three crazy Jack Russell Terriers, and one brave orange tabby cat that was rescued from the AWLA.

Dr. Ryan Jennings Snow, DVM

Ryan Jennings Snow

Dr. Ryan Jennings Snow grew up in Roanoke, Virginia, and received her undergrad degree from William and Mary and her DVM from Virginia Tech. She has practiced in the Fairfax area since graduating vet school in 2003, and joined Ballston in January 2008. She is glad to now have a short commute and to be living and working in the same community!

When not practicing veterinary medicine, Dr. Snow enjoys outdoor activities (hiking, biking, running), traveling, going out with friends, and football (Go Hokies and Redskins!). She lives in Arlington with her husband and her daughter, a big orange tabby cat named Oscar, and a mixed-breed dog named Norman.

Dr. Samantha Scher, DVM

Samantha Scher

Dr. Samantha Scher is a Florida girl, born and raised. She received her Bachelor's degree in Animal Science from the University of Florida in 2004 and went on to graduate from the University of Florida, College of Veterinary Medicine in 2010. Shortly after graduation, she attended the Chi Institute of Traditional Chinese Veterinary Medicine where she studied small animal acupuncture.

After practicing in Lake Worth, Florida for a year, Dr. Scher took a "leap of faith" and moved to Northern Virginia. She worked in Manassas for two years before joining Ballston Animal Hospital in August 2013.

In her free time, Dr. Scher enjoys going to the beach, hanging out with friends, playing softball, traveling to Florida to visit her family, and watching college football. GO GATORS!!! She lives in Alexandria with her husband and two dogs – a Welsh Corgi named Lily and a YorkiPoo named Barkley.

Dr. Katharine Holder, DVM

Katharine Holder

Dr. Katharine Holder is originally from the mountains of North Carolina. She attended NC State University for her undergraduate degree in animal science as well as her Doctor of Veterinary Medicine. After vet school, she completed a small animal internship at SouthPaws Veterinary Specialists and Emergency Center in Fairfax, Virginia. Her professional interests include dermatology, feline medicine, and preventative medicine. Dr. Holder also has a special interest in marine conservation. She enjoys SCUBA diving and learning about coral diseases. She also enjoys running, cooking, and traveling. She lives with her 2 furry Ragdoll cats, Willow and Zephyr.