Our Doctors


Our incredible team of doctors is leading the way in animal cancer research. They also generously teach other veterinarians about pet cancer treatment protocols to make treatments available to more cats and dogs.

Dr. Edmund Sullivan

Dr. Sullivan is the driving force behind Copan’s Place, pioneering the treatment of cancer for pets. Several years ago, Dr. Sullivan was caring for a dog with canine

lymphoma and gave Dr. Rainer Storb (a people doctor) of the Fred Hutchinson Cancer Research Center a call, who gave him the opportunity to learn treatment protocols including bone marrowtransplants, total body irradiation and stem cell transplant, as well as anti-cancer vaccines. Since then, Dr. Sullivan has treated many dogs and cats with cancer and has shared his knowledge with other veterinarians in North Carolina, New York, Los Angeles and San Diego. He also co-founded western Washington’s only volunteer animal blood bank, the Northwest Veterinary Blood Bank in 2001. Dr. Sullivan earned his Bachelors of Science in Zoology at Montana State and earned his Doctor of Veterinary Medicine at Oregon State University.

Dr. Patrick Gavin, DVM, PhD
Diplomat ACVR

Now that he’s retired, Dr. Gavin is spending his time doing what he’s made a career of – making the lives of animals more comfortable. Dr. Gavin graduated from Washington State University with a DVM in 1971. After discharge from the US Army Veterinary Corps, he worked veterinary emergency rooms, including the Alameda East Veterinary Hospital seen on the TV network Animal Planet, taught at the Bel Rea Veterinary Tech School and started a private practice in the Denver, Colorado area. He returned to Colorado State University in 1976 for graduate school and radiology residency training, receiving his PhD in Radiology and Radiation Biology in 1980. He became a board certified veterinary radiologist in 1981 and was a founding member of veterinary radiation oncology in 1994. Dr. Gavin joined the faculty of Washington State University, College of Veterinary Medicine in 1979 and remains a Professor Emeritus of Veterinary Radiology, retiring in 2008.