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    Nguyen Vuong Duc, MD

    1.0 (3 reviews)

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    John W Wang, MD

    John W Wang, MD

    1.0
    (1 review)
    3.8 mi

    I have been a patient for Dr John Wang in Fountain Valley, CA for close to 20 years and have…read morefollowed him though several office changes over this time. However, since he has joined Memorial Health Care all things have gone for the worst... You now can't call his office directly and you have to go through the terrible Memorial Care screening system first. Yesterday that took me 3 hours of wasted time where I never even got the doctor's office on the phone. I am covered by Medicare plus I have a costly PPO supplement policy and I never requested to be with Memorial Care so I definitely don't want to be treated like I am with an HMO. Very frightening!! Last week due to communication problems between the doctors offices within the Memorial Care system, I almost missed a needed medical procedure due to their negligence... If that wasn't bad enough those I spoke to within Memorial Care didn't even care as if I was wasting their personal time which is horrific!!! Memorial Care makes you go through their Patient Navigators- I wouldn't trust them to navigate me to the Bathroom. THEY ARE THE WORST!! Due to these issues, I have requested for my complete records file so that I can bring these records to a new doctor and Dr Wang's office wouldn't get my records for me!!!!!!!!! I don't understand why they couldn't do this since that is a requirement of all doctor's to do when requested by a patient. I can only recommend for others to stay as far away as possible from Memorial Health Care or Dr John Wang unless you may want to be treated as I have been. I am on Medicare plus I have a very expensive PPO supplement

    From the owner: Dr. John W. Wang, who specializes in internal medicine, has relocated his successful Southern…read moreCalifornia 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.

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    Nguyen Vuong Duc, MD - internalmed - Updated August 2026

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