Dr. Sherman Wong

Dr. Wong was born (1947) and raised in San Francisco.  He grew up in the Chinatown-North Beach neighborhood and attended the local public schools.  His first job was a kennel attendant at a local veterinary hospital.  

In 1970, he was accepted to the U.C. Davis School of Veterinary Medicine.  Upon graduation from U.C. Davis in 1974, Dr. Wong practiced one year before starting at Blue Cross Pet Hospital in 1975.  He eventually became a partner with Dr. David M Strohauer and worked as a team for more than 30 years before Dr. Strohauer retired.  

In 2013, after owning the practice for 38 years, Dr. Wong sold Blue Cross Pet Hospital to Dr. Wonjae Lee.  He is currently working part-time at Blue Cross Pet Hospital and says he still enjoys being a veterinarian and seeing clients and their pets.  In his spare time, he enjoys reading, golf, tennis, trying to stay in shape at the gym, following the Warriors, Giants, 49'ers and going on walks with his pug named Buddy.

Dr. Lee


Dr. Wonjae Lee

He earned his veterinary degree from Seoul National University in South Korea and continued his studies and completed senior clinical year at Oklahoma State University School of Veterinary Medicine in 2005.

He joined Blue Cross Pet Hospital in 2009 after practicing in several general and emergency hospitals in Michigan,Oregon and South Bay.  He is an active member of the California Veterinary Medical Association and the American Veterinary Medical Association.




Dr. Siobhan O'Connor

Dr. Siobhan O'Connor has known since a very early age that she wanted to become a veterinarian.  She graduated from Tufts University School of  Veterinary Medicine after attending undergraduate school at Cornell University.  In 1996, she was board certified in canine and feline practice by the American Board of Veterinary Practitioners.  She successfully recertified in 2005 and 2015 and has a particular interest in geriatrics, cardiology and endocrinology.

Immediately after graduating from vet school, Dr. O'Connor moved to San Francisco, fell in love with the Bay Area, and has lived and practiced here ever since.  Now that her son Leo has gone off to college, she shares her home with her husband Jared and their two cats: Finn the red tabby and Aengus the Korat.  In her spare time she enjoys singing with a small local band and volunteering with the wonderful folks at Muttville dog rescue.  


Blue Cross Pet Hospital
1386 Golden Gate Ave
San Francisco, CA 94115
Get Directions
  • Phone: 415-931-5550
  •             415- 931-9302
  • Fax:      415-931-9556
  • Email Us

Clinic Hours

Monday9:00am 6:00pm
Tuesday9:00am 6:00pm
Wednesday9:00am 6:00pm
Thursday9:00am 6:00pm
Friday9:00am 6:00pm
Saturday9:00am 3:00pm



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