Our Staff

Bethany Centennial Animal Hospital is a full-service veterinary medical facility, located in Ellicott City, MD. The professional and courteous staff at Bethany Centennial Animal Hospital seeks to provide the best possible medical care, surgical care and dental care for their highly-valued patients.

We are committed to promoting responsible pet ownership, preventative health care and health-related educational opportunities for our clients. Bethany Centennial Animal Hospital strives to offer excellence in veterinary care to Ellicott City and surrounding areas.

Please take a moment to contact us today, to learn more about our veterinary practice and to find out more information about how Bethany Centennial Animal Hospital can serve the needs of you and your cherished pet.

Dr. Edward Heir


Born in Massachusetts in 1961, Dr. Heir moved to the Baltimore area in 1966 and has been here since. He graduated in 1982 with a B.A. in biology from the University of Pennsylvania. Subsequently, Dr. Heir received his Doctor of Veterinary Medicine degree from Tuskegee University, graduating with honors in 1987.

After working as an associate in several Maryland small animal hospitals, Dr. Heir started as the first veterinarian at Bethany Centennial Animal Hospital in April of 1990, purchasing the hospital in its entirety in 1996.

When not caring for animals, Dr. Heir spends time with his wife of 31 years, Susan, and his children Samuel and Sara, and grandchild Joshua. His hobbies include philately and attending Ravens football games. He currently serves on the board of directors of Beth Israel Synagogue, and the United Postal Stationery Society.

Dr. Charlotte Dunigan


Dr. Dunigan graduated cum laude with a bachelor degree in Natural Science from St. Mary’s College of Maryland. She graduated in 1994 from the Ohio State College of Veterinary Medicine, magnum cum laude. Dr. Dunigan completed an internship at Washington State University in 1995. She has a special interest in surgery, dentistry, pain management, and physical rehabilitation. Dr. Dunigan completed training through the Canine Rehabilitation Institute and is a Certified Canine Rehabilitation Therapist (CCRT). She enjoys spending time with her son Parker. Her hobbies include sailing, hiking, and gardening.

Dr. Leigh Pusateri


Dr. Pusateri graduated from Ohio state college of Veterinary Medicine in 1994. She enjoys spending time with her 2 dogs Josie and Bruiser. She has three children. She works for Defenders of Animal rights, which is a no kill shelter for cats and dogs. Her hobbies include Ravens football, taking her children to sports such as lacrosse and cheering them on, and helping animals at the shelter.