About Us

Green Valley Veterinary Clinic is here to serve you and your family. We understand how special the human- animal bond is and are here to provide medical care and education to the community on animal health. We will work with you to provide multiple options for care and serve you to the best of our abilities.


Our Story

We have been serving Yucaipa and the surrounding regions for over 60 years. We pride ourselves as being an integral part of the community and educating pet owners on animal health and disease.


Meet the Team

Come and meet your veterinarian and animal health team.

Dr. Andrew Nawar

Chief of Staff

Dr. Nawar has been a veterinarian since 2012. His areas of interest are internal medicine and hormonal imbalances such as diabetes, Addison’s disease and Cushing’s disease. He is proud to be a part of the community in Yucaipa. Please don’t hesitate him to discuss your concerns and how he can better serve you.


Dr. Diana Stiles

Dr. Diana Stiles is native to Southern California, having grown up in the nearby San Gabriel Valley. From the age of 9, she knew she wanted to be a veterinarian and passionately pursued her dream. She is a 2001 graduate of Colorado State University, College of Veterinary Medicine and Bio-medical Sciences. Upon graduation from veterinary school in 2001, she took a job in the Chino Hills area, where she worked for 13 years. She joined Green Valley Veterinary Clinic in 2016 and has been an integral part of the hospital and its mission within the community. She has enjoyed working and helping the pets of Yucaipa and looks forward to building strong relationships with the hospital’s clients. Dr. Stiles is married to Gary, with whom she has three beautiful children.


Dr. Renee Jong Hee Joo

Dr. Joo is a skilled emergency veterinarian. She works during the later shift at our hospital and has an avid interest in soft tissue surgery. 


Dr. Sarah Major

Dr. Major is the newest addition to our medical staff at Green Valley Veterinary Clinic. She is an Orange County native and has been working in the Inland Empire for the past 3 years. During her free time she enjoys spending time with her 5 dogs.


Dr. Troy Ellis

Dr. Ellis is the previous owner of the hospital. He has been serving the city of Yucaipa for over 35 years. He is well known within the community as one of the longest serving veterinarians in the city. His area of interest is soft tissue surgery and currently performs surgery for our patients weekly.


Come and meet our team today