Our Doctors

Patrick Hackett, D.V.M.

Dr. Hackett is a life long resident of East Tennessee and graduated from Oak Ridge High School in 1973. As a Junior at the University of Tennessee in undergraduate studies, he was accepted to the Veterinary College. He completed vet school in 3 years, graduating in 1979 at 23 years old. He practiced in Knox County for 2 years and opened Pellissippi Veterinary Hospital in 1981. He is a member of several local, state and country veterinary associations and in 1992 was named Outstanding Practitioner of the Year from the Tennessee Veterinary Medical Association. He is currently a board member of the Humane Society of the Tennessee Valley.
Dr. Hackett enjoys surgery and has always had a special interest in orthopedic surgery. He does orthopedic surgery for several local practices as well as at Pellissippi Veterinary Hospital. Their family of pets include many rescues from the Humane Society and strays. He has a Golden Retriever mix, 1 Italian Greyhound, a Chihuahua/terrier mix, and 5 cats. He also has a goat at his home and has incorporated Jan’s pets and farm animals into his menagerie. His son, Shawn, graduated from the Air Force Academy, is a Officer in the Air Force, and he and his wife live in the Washington, DC area. Dr. Hackett loves living and working in East Tennessee. In his opinion, it is the most beautiful part of the country and has special people and animals.
I have used Dr. Pat Hackett at Pellissippi Veterinary Hospital beginning in the early 198Os. With all the dogs and cats and horses I have had over the years we have shared many experiences. One of the times that I remember the most is when our terrier Harry took on a copperhead snake and while killing it had been bitten at least three times. He was on death’s doorstep when Dr. Hackett met us at the clinic and while Harry snapped at the doctor he did manage to save his life. Then there was the saga of the Moon Blindness that my horse had as well as several others on one short street in Oak Ridge. Dr. Hackett worked with passion and commitment with a group of us horse owners and UT Veterinary researchers to find answers and solutions. He researched the disease for himself and was willing to go out on a limb for us by administering a vaccine that was controversial at the time. At all times Dr. Hackett listened to our questions and concerns and helped us time and time again understand our animals needs in the best interest of their on-going health care. – Nancy Vanderlan





Rick Hall, D.V.M.

In addition to his love of dogs and cats, Dr. Hall has long had a special interest in exotic pets. Prior to attending Veterinary School, he was a manager of a local pet store for several years and then managed a retail pet bird store in Boca Raton, Florida. This provided invaluable experience in the husbandry and care of exotics. He is a long time member of the Association of Avian Veterinarians. Dr. Hall graduated from the University of Tennessee Veterinary College in 1989. He participated in an internship with Susan Clubb, D.V.M. in Miami, Florida providing veterinary care at Parrot Jungle and Pet Farm. Being a native of Tennessee, he returned to Knoxville where he has practiced for 23 years. He has been with Pellissippi Veterinary Hospital for several of those years and is an important part of the team.
When not taking care of pets, “Dr. Rick” plays the hammer dulcimer and bag pipes in an Irish music group, Four Leaf Peat who have released 3 CDs. Dr. Rick and his lovely wife, Pattie, have one son who lives in Nashville. They currently are servants for one cat, Sachi, and 2 dogs, Lenny and Betty Pearl,the lovingest puppies in the world. They also have a peaceful, productive Koi pond. All of his pets are rescues or adopted. After losing Sheila, a Lesser Sulphur-crested cockatoo, bonded to him for nearly 30 years, Dr. Rick is not emotionally ready for another bird yet.
Dr Hall's Animals



Ashley Mays, D.V.M.

Dr. Ashley Mays has lived in East Tennessee for the majority of her life and began working in local veterinary clinics at 16 years old. She attended Anderson County High School and graduated in 2001. Dr. Mays was accepted into veterinary school early, while attending the University of Tennessee for undergraduate studies. She graduated from the University of Tennessee College of Veterinary Medicine in 2014. After 2 years of practice, Dr. Mays found her permanent, professional home here at Pellissippi Veterinary Hospital. Her professional interests include soft tissue surgery, ophthalmology, and neurology. Dr. Mays also has a very special place in her heart for geriatric medicine. Dr. Mays has been married to her husband Bryan since 2009. They have 2 young sons, Ryder and Ramsey. She currently has 2 dogs, Rogue-a mastiff mix and Hype-a pit bull. In her spare time, Dr. Mays like to spend time with her family and friends, travel and cheer on the Tennessee Vols.