In case of an after-hours emergency please contact the following emergency hospital:

Veterinary Speciality Center of Delaware
290 Churchmans Road
New Castle, DE 19720
Phone: 302.322.6933

Harford Emergency & Referral Veterinary Services
526 Underwood Lane
Bel Air, MD 21014
Phone: 410.420.8000

Pets Emergency Treatment Services, INC.
930 North Queen Street
Lancaster, PA 17603
Phone: 717.295.7387

HOPE Veterinary Specialists
40 Three Tun Rd
40 Three Tun Rd
Phone: 610.296.2099
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CALL US! 610.932.2093
Keystone Animal Hospital Veterinarians

Meet Our Veterinarians

Keystone Animal Hospital is staffed by a dedicated and professional group of people who love animals and respect the needs of clients.  All our veterinarians are USDA Certified to do Interstate & International Health Certificates.


Tonya Nowell-Neville, DVM

Dr. Nowell graduated from North Carolina State College of Veterinarian Medicine in 1992. She is married to Dr. Christopher Neville and has two children. She makes their home with four dogs, four cats, one fish, one bird, and a rabbit. She opened Keystone Animal Hospital in 2002 and works as the primary veterinarian. She and her family serve as volunteers to support Oxford area businesses, their church, schools, community, and animal & veterinary organizations. She enjoys gardening, hiking, reading and watching her kids play sports.


Christopher J. Neville, DVM

Dr. Neville graduated from North Carolina State College of Veterinarian Medicine in 1992. He is married to Dr. Tonya Nowell-Neville and has a son and a daughter. He enjoys working with both large and small animals. He enjoys NCSU sports, church, family, and his numerous animals at home. He is currently on the Lighthouse Youth Center’s board of directors and makes an effort to support Oxford by shopping and volunteering in his home town.