Welcome to Premier Nephrology of Orange County

We specialize in providing comprehensive kidney diagnostic services and treatment. Our physicians Son T. Dinh, M.D., Essam Mostafa, M.D. and Philip S. Yang, M.D. are educated and trained in the United States. They are board-certified by the American Board of Internal Medicine in Nephrology and Internal Medicine. Our team of physicians has extensive experience with the latest advancements in the kidney care and disease field. They strive to educate our patients and their families on everything from preventative wellbeing care medicine, to all forms of dialysis and transplantation should this become necessary.

To better assist you, our offices are capable of communicating in English, Spanish, Korean, and Vietnamese languages.