About Me

Raymond K.J. Chang, M.D. is the Medical Director of South County Kidney and Endocrine Center. Dr. Chang is a Diplomate of the American College of Endocrinology, Nephrology, Internal Medicine, and Hospital Physicians. He is currently the Chairman of the Orange County Endocrine Society, and is author and Editor in Chief of a National Internal Medicine Board Review book. He is a national speaker for current treatments and therapies pertaining to Diabetes, Lipids and Chronic Kidney Disease. His philosophy is to treat every patient as if they were his own family member; hence, is always an advocate for his patients’ healthcare.

On a personal note, Dr. Chang was born in Taiwan. He has lived in Orange County, CA for nearly 30 years. When he isn’t spending time at Chuck-E-Cheese with his wife, his twin daughters, and his son RJ. His hobbies include gardening, running, watching movies and playing with his two dogs.


English, Chinese/Mandarin, Taiwanese, Vietnamese

Provider Specialty

Internal Medicine, Nephrology


Medical Education

University of Minnesota Medical School

Locations & Affiliations


South County Kidney & Endocrine Center

23141 Moulton Parkway

Suite 102

Laguna Hills, CA

Insurances Accepted

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