James Wentzel, DVM, Medical Director

DVM, University of Wisconsin-Madison


Dr. Wentzel is the Medical Director at California Oaks Animal Hospital. He has been with Cal Oaks since 2005. His areas of interest are internal medicine, surgery, dermatology, and preventative medicine. He has extended interest in abdominal ultrasound and in surgical correction of stifle (knee) injuries, including cruciate injury and luxating patella.

Prior to joining COVH in 2005, Dr. Wentzel served for 10 years as a staff veterinarian in a small animal practice in Wisconsin.

Dr. Wentzel earned his Doctorate of Veterinary Medicine from the University of Wisconsin-Madison in 1995.

Dr. Wentzel and his wife, Karen, have a son and a daughter. Their family is rounded out with a Boxer named Todd and a Boston Terrier, named Willie.