Meet Our Vets
Dr. Joe Graff
Dr. Joe Graff has been with All Animals for 19 years and has been Chief of Staff for the last 12 years. He is a 1980 graduate of U.C. Davis and practiced at a Los Angeles area emergency hospital prior to returning to the Bay Area, where he was raised. Dr. Graff has served on the CVMA’s Human-Companion Animal Bond Committee and had an essay published under “A Most Unusual Case” in the November issue of Veterinary Forum. Joe, his wife, and their two daughters share their home with a cat (Snowflake) and pasture a small flock of Shetland sheep.
Dr. Sarah Grier
Dr. Grier has been with All Animals for six years. She is a 1998 graduate of Colorado State University and completed a small animal internship at the University of Guelph in 1999. Special interests include critical care medicine and pain management. Sarah lives in San Francisco with her husband and two kids.
Dr. Bonnie Yoffe-Sharp
Having practiced at All Animals for 22 years, Dr. Yoffe-Sharp is our most senior staff member. She has presented at national conferences sponsored by the American Animal Hospital Association, the American Humane Association, and the Humane Society of the United States, and has co-authored an article which was published in the Journal of the American Veterinary Medical Association. Bonnie shares her home with her spouse, her daughter, four dogs, two cats, and seven hens.
Dr. Brian VanHorn
Dr. VanHorn's interest in animal disease was sparked early in life when he would accompany his grandfather to work. His grandfather, Melvin "Doc" Seeliger, practiced large and small animal medicine in a close-knit Wisconsin community. His expertise was essential to clients, who were also friends and neighbors, in order to care for their family pets as well as animals that their livelihoods depended on. This importance of the veterinarian's role to society and animal health were the cornerstones of Dr. VanHorn's motivation to become a veterinarian.
Dr. VanHorn worked as a veterinary technician, humane investigator, and in veterinary public health for 15 years before graduating from Western University in 2007. His primary interests are emergency medicine, epidemiology, and veterinary public health. Away from work, Dr. VanHorn spends time with his daughter and enjoys being an amateur naturalist, motor sports enthusiast, and lifelong Packer fan.