Crescenta Valley Veterinary Hospital
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Meet Crescenta Valley’s Skilled & Experienced Veterinarians & Staff


Keith Youn, DVM, Owner

Dr. Keith Youn received his veterinary degree in 1997 from Kon-Kuk University in South Korea and also completed his internship for small animal medicine/surgery there. Soon after, he decided to move to the states to pursue veterinary medicine.

Dr. Youn attended University of Florida and completed an accreditation program to become a practitioner in U.S. Upon completion of his studies, he started work in a local veterinary practice in Las Vegas, Nevada for a year before finally settling down in Southern California. Dr. Youn has been practicing for 10 years and greatly enjoys both internal medicine and surgery. He is currently a board member of KVSA, and a member of CVMA and SCVMA. Currently, Dr. Youn lives in Pasadena with his wife Sylvia and their Boston Terrier, Shimmy.

Client Relations Team

Diane, Client Relations Specialist


Diane has been with CVVH part time since 1999. Diane’s first career was as a school psychologist. After taking early retirement, she decided to move from helping children to helping animals. Diane loves doing her part to make a difference in the lives of our patients and clients. She resides locally with her husband and two cats, T.T. and Cyrano de Berjerac.

Best vet ever anywhere.”

- Michael D.

I not only like the Crescenta Valley Vet Hospital, I like the people who run it!!”

- Elizabeth G.

You folks are the best, thanks for taking such good care of our 4 legged children”

- Helen L.

THANK YOU to the doctors and staff at CV for being so caring and patient, with animals and humans!! :) We love u!!”

- Dantes and family!!

These guys are fantastic. The staff are so friendly and helpful, you couldn't want a better place to take your loved ones for care. I wish hospitals were this good!!!”

- Virginia C.

Thank you from the bottom of our hearts for all your care and concern. We are fortunate to have you.”

- Sparky & Martha

CVVH not only strives to provide the best medical care for your pets, but they also educate pet owners on how they can be proactive in creating a quality lifestyle for their pets."

- John C.

Thanks so much for the years of care & treatment for Buddy & Bruin. You and your staff are the best!"

- Chris L.