Welcome to Our Vista Animal Hospital! Our experienced veterinary care team is excited to welcome you and your pet into our animal care family.


Kateryna Naderi, VMD


Dr. Kateryna Naderi comes to Mohnacky Animal Hospitals with over ten years of clinical experience. She’s supported laboratory research at her alma mater the University of Pennsylvania, served as a veterinarian in the U.S. Army (retired with the rank of Major), and practiced as an Associate Veterinarian in small animal practices across the states of Pennsylvania, New Mexico, Texas, and California. Her time in the Army deepened her understanding of the human animal bond, something she works tirelessly to preserve and nurture on a daily basis, while her life with her also-veterinarian husband keeps her grounded. Dr. Naderi’s professional interests include preventive medicine, public health, and soft tissue surgery. When not at work she enjoys spending time with her husband, gardening, road cycling, camping, and traveling.


Leah Stalker, RVT


Leah Stalker is Executive Director and RVT for MAHV. Leah was born and raised in San Diego and currently resides in beautiful Fallbrook. Leah began working in animal nutrition in 2004 before moving to Iwakuni, Japan with her husband. While there, Leah took a job with the US Army Veterinary Corps treating military working dogs. In 2011 her family moved back stateside and she worked in a busy exotic practice caring for everything from birds to snakes to goats. Leah also worked with a traveling orthopedic surgeon and veterinary practices of all sizes, while providing relief services to hospitals in both San Diego and Riverside County.

Leah has a passion for riding horses and has been doing so since the age of two. She has traveled to nine countries and looks forward to seeing the world. In her spare time Leah enjoys interior decorating, riding, hanging outside with her chickens and standard poodle “Daphne” as well as spending her time with her daughter and husband.