Westridge Animal Hospital

4801 N 75th Ave.
Phoenix, AZ 85033



Westridge Animal Hospital - Meet Our Doctors


Westridge Animal Hospital - Phoenix, AZ - Dr. Bill Petersen

Dr. Bill Petersen

Dr. Petersen was born in Detroit and raised in Phoenix.  He knew from an early age that he wanted to make a career of working with animals and has always been fascinated by medicine and science.  He recieved his doctorate of veterinary medicine from Colorado State University in 1983.   That same year he joined the Westridge Animal Hospital team.  In 1998 Dr. Petersen became the sole owner of Westridge Animal Hospital.  Over the past 30 years he has been providing compassionate care and educating pet owners. 

In 1999 he became certified in veterinary acupuncture.  He believes in combining the tradition of western medicine with the technologies of eastern medicine.  Other areas of special interest include internal medicine and veterinary dentistry.  

When not at the office, Dr. Petersen can be found relieving stress on the golf course.  He also enjoys cycling and spending time with his family. 

Dr. Kathryn Allen

Dr. Allen has been a small animal veterinarian since 1988.  Most of that time has been spent owning her own practices until her recent return to the US from Australia.  Dr. Allen joined the team at Westridge Animal Hospital in October 2018.

Dr. Allen prides herself on her love of all animals.  Although primarily a dog and cat veterinarian, Dr. Allen worked in wildlife rescue in Australia and is an avid wombat and flying fox fan.

Dr. Allen's dedication to animals extends to not eating them, and she's a lover of vegan pastries! (hint, hint)

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