Meet Our Doctors

  • Robert P. Cotthaus , DVM

    Dr. Robert Cotthaus is a graduate of the University of Illinois College of Veterinary Medicine. A Long Island native, Rob came to veterinary medicine as a second career. Following graduation from SUNY Stony Brook, he lived and worked in Boston and Brooklyn, NY for a number of years. Rob has a professional interest in the responsible and compassionate care in the use of laboratory animals in research and consults within the Biotechnology Industry. When not working, he can be found with his wife, four children and his 2 dogs, Benny and Stella, on the beach in the summer and the ski mountain in the winter.

  • Ruairi White, DVM

    Originally from Ireland, Dr. White grew up in Newton, Massachusetts. He received his bachelor’s degree in Marine and Environmental Science from the U.S. Coast Guard Academy in 2008 and served 6 years in the Coast Guard before pursuing his childhood dream of becoming a veterinarian. He graduated from Tufts University with his DVM and MPH in 2018, after which he completed a one-year large animal ambulatory medicine and surgery internship with Tufts Field Service.

    Dr. White loves the variety of mixed animal practice and enjoys seeing all species. When not working, Dr. White enjoys hiking, running, fishing, and playing guitar. He lives in East Haddam with his wife, Kelsey, and their dog, Kodi.


  • Griffin B. O'Connor, DVM

    Griffin O'Connor, DVM is a native of Suffield, CT. She graduated from Ross University in 2007 after completing her clinical training at Virginia-Maryland regional college of Veterinary Medicine. She joined Suffield Veterinary Hospital in 2007, where she worked for nearly 10 years. Dr. O'Connor has been with us here at Glastonbury Animal Hospital since February, 2018.  We are glad to have her here with us; she brings with her a lot of knowledge, and laughter! She shares her home with her husband Jason (also a veterinarian), her two small children, a cat Sushi and two Rhodesian Ridgebacks: Bodhi and Sparkle. In her time off she can be found hiking with her dogs or spending time on the water.


  • Marcy L. Nedder, DVM

    Dr. Marcy Nedder was born and raised in Central Connecticut. She received her Bachelor of Science degree in Nursing from the University of Rhode Island in 1985. She worked as a registered nurse in a Boston hospital prior to her veterinary career. Dr. Nedder received her Doctoral of Veterinary Medicine from Tufts University in 1996. She has practiced veterinary medicine in Boston and in various places in Connecticut. At home Dr. Nedder manages her own farm which includes horses, chickens, sheep, and her rescued dogs. Her twin daughters and husband, who is also a veterinarian, keep her busy as well. 


Business Hours


8:00 am-6:00 pm


8:00 am-6:00 pm


8:00 am-6:00 pm


8:00 am-6:00 pm


8:00 am-6:00 pm


8:00 am-12:00 pm