About

Dr. John W. Wang, who specializes in internal medicine, has relocated his successful Southern California practice to Fountain Valley.

Dr. Wang is board certified in internal medicine. He received his M.D. degree from the University of Texas, San Antonio after graduating with honors from the California Institute of Technology.

As a primary care physician (PCP), Dr. Wang is your personal physician, generally the first person you see for a regular physical exam or specific health problem. He will know all about your medical history, changes that have occurred over time, and your ongoing health and wellness.

Dr. Wang will recommend an individual, customized treatment plan for you to begin feeling your best. He will refer you to specialists as needed and will track and monitor your specialty care as it relates to you as a whole person. Our patients enjoy service in a clean and stylishly modern office setting. Consultations are completely confidential and done in a comfortable and friendly manner.

Languages

English

Provider Specialty

Internal Medicine, Primary Care

Areas of Care

Education

Medical School

University of Texas Medical School at San Antonio

1999

Internship/Residency - Internal Medicine

Kern County Medical Center - UCLA

2002

Locations & Affiliations

Locations

Insurance

Please consult your health care provider or health plan for the most accurate information about your health plan’s coverage of a particular health care service offered at a MemorialCare facility. Learn more about our Accepted Health Plans.

Patient Reviews

4.8 out of 5
(500 Ratings)
Apr 13, 2026
Manoochehr K.
He is the best
Apr 3, 2026
Joseph W.
Very through
Apr 3, 2026
Darryl N.
Very caring doctor.
Apr 2, 2026
Randall M.
Dr. Wang very professional and kind every time I see him.
Apr 2, 2026
Vu T.
Apr 2, 2026
Jeffrey H.
Efficient and knowledgeable .....nurses professional too!
Apr 2, 2026
Duane P.
Very thorough, willing to explain. Answered all questions and arranged for deferrals. Staff was polite, aware and very helpful.
Apr 2, 2026
Stanley S.
He has the patience to let you talk to find out what is going on with your body
Apr 2, 2026
Jeffrey H.
Mar 31, 2026
Carmen G.
Great experience

Source: Reviews are aggregated from third-party review sites such as Facebook, Google, HealthGrades, RepuGen, Vitals, WebMD, and Yelp.