Dr. Maria Di Gregorio

Dr. Di Gregorio is a native of Upstate New York, where (contrary to popular belief) every pick up truck has a cowboy in the cab and an Aussie in the bed. A graduate of Cornell University’s Animal Science program and Oklahoma State University’s Veterinary School, Dr. Maria obtained a Master of Arts in Teaching, also from Cornell University. After purchasing Cleveland Veterinary Clinic in Cleveland, OK in 1995, she bought Baker Animal Clinic in Stillwater, OK in 1999. Dr. Di Gregorio continues to own and operate both clinics. She is married to Dr Joseph McCann, PhD., who is an endocrinology consultant and professor at the OSU veterinary school. Dr. Di Gregorio believes in preventive care for her patients and keeping the owners involved and proactive in their pet’s health. When she’s not busy working she enjoys spending time with her two teenage daughters and husband, her horses and dogs.


Dr. Teri Stacy-Tennell

Dr. Tennell was raised in Bixby, OK and graduated from OSU Veterinary School in 1999. She has spent the last 21 years practicing veterinary medicine with an equine emphasis. She has a teenage daughter, Jaycee, and with Matt, her husband, they enjoy raising, training and competing barrel horses.


Daisy Brisbin

I was born and raised in West Virginia and moved to Pawhuska, OK in the mid-80’s. I have been living in Cleveland since 1998 when I married my husband, Mark. We have 2 grown children, a daughter and son. In September 2013 we were blessed with a sweet grandson named Bentley. We also have a German Shepherd, Bridget, a golden retiever, Darcy, and 9 cats! I started wroking at Cleveland Veterinary Clinic in October 2009. I really enjoy the day-to-day happenings at the clinic and being able to experience something new every day.