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Angela O'Donnell, DVM with Cat PennyDr. Angela O’Donnell, our Chief of Staff, joined the Middlebranch Veterinary team in August of 2012. Originally from the Albany, New York area, her love of horses and all animals lead her to a dream of becoming a veterinarian at the age of eight. Dr. O’Donnell received a Bachelor of Science in Biology from Manhattan College in 2007. She then went on to earn a Doctorate of Veterinary Medicine from the University of Minnesota in 2011.

Dr. O’Donnell completed a one-year rotating internship in emergency medicine, surgery, and others specialties at Veterinary Emergency and Referral Group in Brooklyn, New York. In addition to general medicine, she has a strong interest in nutrition, behavior and business management.

Dori Hoell, DVM with Dogs Fergie, Lizzie & JoceeDr. Dori Hoell joined Middlebranch Veterinary in 2002. She grew up in Long Island and graduated from Long Island University - C.W. Post in 1994. After realizing her real passion was veterinary medicine, Dr. Hoell earned a Doctorate of Veterinary Medicine from Cornell University's College of Veterinary Medicine in 2000. She is currently working on her canine rehabilitation certificate and we hope to expand our orthopedic and rehabilitation services with her expertise.

Although she loves all her patients, Dr. Hoell particularly adores her favorite breeds, which are German Shepherds and Vizslas (a.k.a. "red dogs"). Outside of the hospital, her hobbies include gardening, fitness, and scuba diving. She lives with her husband, stepson, two red dogs of her own (Fergie and Jocee), a mutt (Lizzie), and a beautiful tank of saltwater fish.

Annette Gonzalez, DVM with a canine patientDr. Gonzalez earned her DVM from Ross University in 2008, and attended Purdue University for her senior clinics. She also earned a Veterinary Associate of Applied Science degree from Suny Farmingdale in 1992 and was a Licensed Veterinary Technician for many years before going to vet school.

Prior to joining the Middlebranch Veterinary team, Dr. Gonzalez worked at the Bronx Zoo as a Veterinary Technician; as a Director for the Center for Animal Care and Control, Brooklyn Shelter; and as an Animal Health Technician for NYS Department of Animal Industry for five years.

Dr. Gonzalez has a special interest in soft tissue surgery, along with exotics and pocket pets. She also enjoys working with local farms, caring for llamas, sheep, goats and alpacas. Dr. Gonzalez is an active member of the AVMA, NYSVMS, HVVMS and The Association of Small Ruminant Practitioners. She enjoys time spent with family and friends.

LouAnn Pfeifer, DVM with Dog KeeperDr. LouAnn Pfeifer, now retired, practiced veterinary medicine for over 35 years. She founded Middlebranch Veterinary in 1993 and, in 1999, she moved the practice from its original location in Brewster to its current location in the "big yellow house" in Carmel. Originally from Wisconsin, Dr. Pfeifer graduated from the University of Minnesota College of Veterinary Medicine in 1980, but she has been a New Yorker ever since.

Dr. Pfeifer's hobbies include reading, crafts, gardening, and dog training. She has a large family of five dogs and one cat.