Meet Our Veterinary Staff

Mike Sozanski, D.V.M.

East Bay SPCA Chief Veterinarian

Dr. Mike Sozanski graduated from the College of Veterinary Medicine at Cornell University in 1979. He moved to the Bay Area in 1980 and does not miss the winters in upstate New York at all! Although he enjoys all aspects of being a veterinarian, he is especially interested in surgery. He has been a Diplomate of the American Board of Veterinary Practitioners since 1988. At one point he had 4 cats, a dog, 3 birds, a rat, a rabbit and 3 teenage girls at home— but now has just one dog, Ivy.  During his spare time he enjoys trail running, swimming, travel, photography, and developing web applications.



East Bay SPCA Staff Veterinarian

Dr. Gwen Gadd, Oakland, veterinary, vetDr. Gwen Gadd is a card carrying, non-skiing Colorado native who decided to experience life in the Bay area. She graduated with her degree in veterinary medicine from Colorado State University in 1996. She enjoys all aspects of veterinary medicine and has treated everything from stray chickens and hedgehogs to the more conventional dogs and cats. On a personal level, Gwen loves getting lost with her dog Roo, photography, short story writing and pretty much anything that allows her to learn new things.




East Bay SPCA Staff Veterinarian

veterinary clinic, vet, Dr. WatanabeDr. Watanabe is a Bay Area native, and graduated from veterinary school at University of California, Davis in 2006. She enjoys performing surgeries as well as meeting and playing with her dog and cat patients! She has two cats (Snowshoe and Milkyway) and one dog (Tofu). Dr. Watanabe spends her free time scrapbooking, rock climbing, hiking, and going on new adventures with her family.





East Bay SPCA Staff Veterinarian

Dr. Christine Tang is originally from New York, and transplanted to California in 2010. She received her veterinary science degree from Michigan State University, and completed a year-long small animal rotating internship at Bay Area Vet Specialist (BAVS).  Dr. Tang is glad she is part of the East Bay SPCA team! Outside of work, Dr. Tang enjoys being outdoors, and traveling.      




Rochelle morrissey, D.V.M.

East Bay SPCA Staff Veterinarian

Dr. Rochelle Morrissey grew up in Berkeley, and attended the University of California, Davis for both undergrad and veterinary school. Following graduation, Dr. Morrissey spent several years practicing in the Bay Area, before relocating to Pennsylvania for the past 5 years. She is excited to have relocated back to the warmer California climate with her husband, daughter, and cat Domino. She enjoys small animal medicine and its varied challenges, particularly dermatology and ultrasound. When she’s not practicing she is an avid Oakland A’s fan, and also enjoys playing softball, skiing, and travelling.  




Jeannie Grijalva, D.V.M.

East Bay SPCA Staff Veterinarian

Dr. Jeannie Grijalva hails from San Jose, California and attended Cal Poly, SLO for her undergraduate degree where she received a BS in Chemistry. She has always had an affinity for animals and she knew in her heart she wanted to be a veterinarian so she pursued her higher education at St. George's University. Dr. Grijalva did her clinical year in Scotland at the Royal Dick Vet in Edinburgh where she had many interesting adventures including trying haggis. After graduating, she moved to Arizona and worked at a busy private practice for several years and came to three conclusions: 1. It was hot! 2. She missed her family and friends 3. Her heart belongs to California! She tmade her way back to northern California working in several other private practices, gaining more experience and knowledge while keeping things lively along the way. She feels lucky to work with the supportive crews of the East Bay SPCA and looks forward to having many new adventures while helping more pets than she dreamed possible.  On her off time she likes to travel, hike, read and watch her cats wrestle though not necessarily in that order. 


jennifer Kwan, D.V.M.

East Bay SPCA Staff Veterinarian

Dr. Kwan graduated from UC Davis, School of Veterinary Medicine and is excited to work at the East Bay SPCA. Her veterinary passions include shelter medicine, animal behavior and small exotic mammal medicine. Her myriad of animal companions include dogs, cats and rabbits. In her spare time, she enjoys training animals, watching Broadway musicals, hanging out with friends and spending time with her nieces.