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    Yan James K DO

    3.0 (4 reviews)

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    Photo of D'oh S.
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    1 year ago

    Dr. Yan misdiagnosed a tumor, . It was dangerous!! Zero stars!!! My life was put in danger !!

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    2 years ago

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    9 years ago

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    9 years ago

    Excellent doctor. Attentive, knowledgeable and very good overall. I highly recommend Dr. Yan to those who require a colonoscopy..

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    Steven Chang, MD

    Steven Chang, MD

    5.0(3 reviews)
    0.9 mi•Financial District, SoMa

    I saw Dr Chang last week on an emergency visit, when my regular physician was unavailable, and was…read morevery impressed with the quality of my care, and Dr Chang's intelligence, friendliness and thoughtfulness. He spent a full 30 minutes with me, carefully asking questions of my condition, attentively listening, and offering a variety of treatment options. Even when I had follow-up questions a few days later, he answered my emails right away. I've been to doctor's offices in which I've felt very rushed, and seem to only get 5 minutes before the doctor is out the door, and so have been so happy with One Medical Group. In addition, the space itself feels as though you've entered a spa, with natural light pouring in, a flask of water in the waiting room and friendly, helpful people at the front desk who are always on top of the insurance companies, advocating to make sure they will cover a procedure. I really feel cared for in this practice.

    I had to see Dr. Chang on an urgent basis a while back and he really blew my mind away! Most of…read morethe docs through One Medical are great, but man he totally blew the others (that I've seen so far) out of the water. He was friendly, thorough, accommodating, and even got on the phone personally to get me in to see a specialist right away. He gave me all the time needed to ask my questions and answered each one thoroughly. No one worded responses with him! If my insurance allowed I'd have him for my PCP, but since I can't I'm happy to know he's there for my urgent care needs =)

    Ganga Nadella, MD

    Ganga Nadella, MD

    5.0(2 reviews)
    0.4 mi•Financial District

    I've only been seeing her a short while but my experiences with her have been great. She has been…read morediligent in acquiring my past health history. She really listens to me when I describe my health issues and has addressed them thoroughly. So far I have nothing but praise for her.

    Best Doctor Ever!!!…read more I have had the best care by Dr. Nadella. She is the first Doctor that actually listen to me. She gives a personal touch to her practice. She always gets back to me and is available to answer my questions. I am against the western medicine mindset to prescribe drugs to fix the symptoms but not actually address the illness.... and cure the problem, SHE actually recommend a holistic Doctor for me to go see! Can you believe that! She listen and prescribed what I believe in. She allowed me to do a natural approach first. We agreed if it did not give us the results were were looking for we would discuss other methods of treatment. Dr. Nadella, during my appointment gave me information to help me on my road to healing my body. I am not talking about handing me one or two pamphlets and rushing me out the door. She gave me information that she had researched on her own and had put together for her patients to use. She also asked me what had been working for me and what Websites that I go to for my information. She was gathering information from me to possibly help her other patients. I LOVE this! I recommend One Medical and Dr. Nadella. I always receive 5 star treatment. Yes, it cost a bit more; however, there service is definitely worth it!

    One Medical Primary Care Clinic - Two Embarcadero Center

    One Medical Primary Care Clinic - Two Embarcadero Center

    3.0(256 reviews)
    0.5 mi•Financial District

    Absolute zero service when requesting medical records. It has now been nearly 4 months since I…read morestarted a life insurance application and my provider has been completely stonewalled in their request for results of bloodwork that I did with One Medical. There have been calls, faxes, emails, maybe even courier on horseback and nothing has been responded to. I hope that they will respond soon as my insurance application will get denied without their participation Update: After finding the number online and speaking to someone it was a couple minute process to help the process along. The representative was friendly and helpful

    I've found One Medical useful for basic, transactional care - telehealth prescription renewals, UTI…read moretreatment/lab scheduling and convenient bloodwork for things like cholesterol. However, I would not recommend them for anything more. Unexpected Billing. I recently went in for a single annual physical. During the appointment I mentioned that a UTI previously treated through One Medical had not fully resolved and asked about another antibiotic. One Medical then billed an additional office visit at $549, on top of the annual physical. I was never told during the appointment that briefly addressing this issue would result in a second office visit charge. I have contacted One Medical to dispute this charge and despite multiple messages, have not received any response. What is worse, the antibiotic prescribed 1. Did not work 2. Was Bactrim, which I later learned is associated with an increased risk of certain birth defects including neural tube and heart defects when taken early in pregnancy (I was in my first trimester). None of these pregnancy-specific risks were discussed with me. Unnecessary testing / poor diagnostic experience. A few years ago, I developed Dupuytrens contracture, including the characteristic puckering in my palm. It was obvious what it was. I asked for a referral to a specialist, but the One Medical provider repeatedly told me that it was likely a callus, because of my age and race. She recommended an ultrasound and reassured me that it would be inexpensive because it was performed in-house. I was charged $700. When the ultrasound did not support the callus diagnosis, she then recommended an MRI and continued to reject my request for a referral.

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    One Medical Primary Care Clinic - Two Embarcadero Center
    One Medical Primary Care Clinic - Two Embarcadero Center
    One Medical Primary Care Clinic - Two Embarcadero Center

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    Yan James K DO - physicians - Updated September 2026

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