Jenny Siess, DVM

Dr. Siess was born and raised in Southern California and moved to Flagstaff to attend NAU. She fell in love with the mountains, so she made Flagstaff her permanent home. Dr. Siess started working at Westside in 2008 as a veterinary technician where she quickly made the clients and patients her family. After finishing veterinary school at Western University of Health Sciences in Pomona, CA, it was only natural for Dr. Siess to come  “home” to Westside Veterinary Clinic to work as a veterinarian. Wanting to make a long-term commitment to Westside, Dr. Siess became the owner of the practice in March 2018. She loves surgery, orthopedics, preventative medicine and exotic animal medicine. When she can, she works with the Humane Society of the US to provide free veterinary care animals in extremely rural areas of the country. In her limited free time, Dr. Siess enjoys hiking, camping, traveling, and of course spending time with her husband, John, and their 3 dogs, 5 cats and ball python. Dr. Siess could not ask for a better practice to be a part of, nor could she ask for a better staff! 


Toni Barnes, DVM

Dr. Barnes earned her Doctorate in Veterinary Medicine at Colorado State University. She was the owner of Westside Veterinary Clinic for 12 years until March of 2018 when she sold the practice to Dr. Jenny Siess. Dr. Barnes has a passion for internal medicine in small animals. She is also certified in Veterinary Acupuncture and has years of experience in alternative  and Chinese veterinary medicine. In her free time, Dr. Barnes enjoys doing agility and hiking with her 2 Jack Russell Terriors, Petey and Reggie. She loves gardening and relaxing around the house as well as traveling both in an out of the United States.  


Chelsey Rae Calhoun, DVM

Raised in Cottonwood, Chelsey grew up riding horses and befriending the many animals she had at home, from dogs, goats and chickens to a feral younger brother.  The passion for animals started early and she became a veterinary technician in high school. She then attended college at Northern Arizona University, going on to earn her veterinary degree at Colorado State University.  However, her heart has always been in Arizona, and she  returned, first to Sedona's red rocks for several years, then moved up to Flagstaff where she joined the amazing Westside team in 2017.  Dr. Calhoun is a Certified Veterinary Acupuncturist and she has a passion not only for acupuncture, but also internal medicine, soft tissue surgery, and pain management. She also enjoys treating and continuing to learn about exotic animals.  She loves living in Flagstaff with her husband Luke, twin baby girls Avery and Ella, and her small zoo at home, including two dogs (Scout and Howie), two cats (Oliver and Sir Furguson), two parakeets (Ravenclaw and Hedwig), two rabbits (Furbert and Hamlet) and eight chickens (too many to name!).



Amanda Joy Hatcher, DVM

 Joy was born and raised in central Kansas. At 4 years old, she started telling her family she was going to be a veterinarian. Graduating summa cum laude from Newman University in 2011 with a BA in science led her down the path of veterinary medicine and she was accepted to the University of Missouri School of Veterinary Medicine.  She graduated in 2015 with a special interest in mixed animal medicine. After graduation, Joy joined a mixed animal practice in Moab, Utah. She has had the  opportunity to work on everything from hedgehogs to camels with her main focus being to provide quality veterinary care for the cats, dogs, horses and cattle in the area. After three years in Moab, Joy has joined us here in Flagstaff. She is a member of the American Veterinary Medical Association, Arizona Veterinary Medical Association, American Association of Equine Practitioners, and American Association of Bovine Practitioners. In her free time, Joy enjoys hiking with her dogs, spending time with family and riding her horses with her husband.