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

4.9 out of 5
(500 Ratings)
Feb 5, 2026
Noreen A.
Jan 30, 2026
Yasmin P.
Jan 30, 2026
Gloria H.
He was very patient and listened to all my concerns and gave feedback.
Jan 29, 2026
Yasmin L.
Jan 28, 2026
David S.
Great doctor. Very thorough.
Jan 28, 2026
Anonymous
OutstandingDr Wang is a great Dr Thorough responsive and caring I am incredibly grateful to have him as my primary care physician
Jan 27, 2026
Michael A.
Dr Wang is a great Dr. Thorough, responsive, and caring. I am incredibly grateful to have him as my primary care physician.
Jan 27, 2026
Sandra D.
He was very pleasant, he projected a caring attitude. He listened to me, didn't rush me and made me feel like I mattered.
Jan 27, 2026
Colleen C.
Jan 26, 2026
James C.
Quite understanding and listened to my symptoms as well as history to prescribe meds

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