Walnut Valley Animal Hospital

(626) 965-4941

Puppy Image

Walnut Valley Animal Hospital is home to three experienced and caring veterinarians.



Dr. Mallick


Dr. Mallick graduated from Veterinary school in 1960 and has more than 35 years experience helping owners and animals alike and caring for the pets we love. Dr. Mallick spend a significant amount of time saving pets in emergency and critical care. His care and expert knowledge has saved thousands of pets. Dr. Mallick cares about all animals and understands the importance of being involved with rescue organizations helping animals who have been lost or abandoned.



Dr. Nina To


Dr. To is dedicated to caring for your pets. She graduated from Western University of Health Services College of Veterinary Medicine in 2007. She has received special training in K-9 Rehabilitation for dogs who are dealing with pain after surgery or for other reasons. She and her husband love to cook and hang out with their own dogs.

Dr. Michael Bobek


Dr. Bobek graduated from the University of Florida College of Veterinary Medicine in 1990 and joined our practice in 2015. He is certified in VOM (Veterinary Orthopedic Manipulation) which helps pets who are dealing with pain. He loves dogs & cats and exotic pets as well, including all kinds of birds, reptiles, and other mammals.