Our emergency/urgent care service is backed by a team of highly skilled and experienced  clinicians and technicians capable of providing the most up-to-date diagnostics and therapies for virtually any medical need.

Alexis Smith, DVM – Medical Director

Dr. Alexis Smith received her undergraduate degree in molecular biology at the University of California, SantaBarbara in 1997. She earned her doctor of veterinary medicine from the University of California, Davis in 2002. Prior to joining our team, she worked for many years at another large emergency, general, and referral practice in the Sacramento area. When not practicing veterinary medicine, Dr. Smith enjoys running, cycling, and gardening.

Laura Kippen, DVM

Kathy Marsh, VMD

Tristan Menz, DVM

Dr. Tristan Menz was born and raised in the Sacramento area. She received her undergraduate degree in Biological Science from the University of California, Santa Cruz.  Tristan then graduated from St. George’s University School of Veterinary Medicine with a Doctor of Veterinary Medicine degree. After graduation she moved to the East coast completing a one year rotating internship in Small Animal Medicine, Surgery, and Emergency and Critical Care. Her special interests include emergency/critical care, pain management, and avian/exotics. During her free time she is bossed around by her two cats, Piper and Penny, and her Belgian malinois, Brody.


Matthew Tenwolde, DVM

Dr. Matthew Tenwolde was born and raised in San Diego, California. He completed his undergraduate training at the University of California, Davis in the field of animal science in 2001. Dr. Tenwolde then graduated from the School of Veterinary Medicine at the University of California, Davis, in 2007. Following veterinary school, he completed a 1-year internship program in medicine and surgery at The Ohio State University.

Following his internship year Dr. Tenwolde joined the Emergency and Critical Care service at UC Davis as their attending overnight doctor, overseeing the emergency and ICU services. After spending 2 years with a local emergency and general practice, Dr. Tenwolde joined the Vista team. He has a special interest in feline medicine, emergency medicine, and surgery.

When away from veterinary medicine, he enjoys backpacking, cycling, cooking and time with friends and family.