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    Koppe Michael, DDS

    4.6 (11 reviews)

    Services - Koppe Michael, DDS

    Cavity treatment

    Dental exams

    Teeth cleaning

    1 More Service

    Tooth filling replacement or repair

    Koppe Michael, DDS Photos

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    1 year ago

    Excellent care by a knowledgeable and experienced dentist. I trust his judgment completely.

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    1 year ago

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    12 years ago

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    10 years ago

    Dr. Koppe and his staff are the best around!

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    15 years ago

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    12 years ago

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    Marin Advanced Dental Care

    Marin Advanced Dental Care

    (92 reviews)

    I beg people. Please DO NOT GO HERE. They act like sales people. I'm writing this review so others…read moredon't experience what I did. I originally visited this office for a routine teeth cleaning, not for orthodontic treatment. During the visit, clear aligners were brought up, but the doctor did not clearly explain how long I would need to wear the aligners per day or what the full commitment would look like. Despite that, I was encouraged to move forward and ended up paying the full amount($6,187)the same day. After thinking it over, I realized this treatment did not fit my lifestyle and called the office next day to ask whether cancellation was possible. During that call, the front desk staff member told me that the aligner order had already been placed and that cancellation would be very difficult, which later turned out to be untrue. What concerned me most was that the front desk staff member -- who is not a doctor -- repeatedly tried to persuade me not to cancel for over five minutes, making statements such as: * that he personally wears aligners and drinks cocktails with no problem, and * that I probably don't need to wear the aligners exactly 20-22 hours a day. This was extremely concerning. A non-clinical staff member should not be giving medical advice or minimizing compliance requirements, especially for orthodontic treatment where wear time directly affects outcomes. It felt unsafe and inappropriate. After insisting that I only wanted to know whether cancellation was possible, I was later called back and told that the doctor had NOT placed the aligner order and the treatment plan had NOT been started, contradicting what I had been told earlier. Although they agreed to cancel, they withheld 10% of the total payment (over $600) as a "transaction/third-party fee," despite no aligners being ordered and no treatment having begun. No clear breakdown or documentation was provided. The combination of: * misleading information, * high-pressure sales tactics, * non-medical staff giving medical guidance, and * lack of transparency around fees made me lose trust in this office. Orthodontic treatment is a serious, long-term medical decision, and patients deserve accurate information and professional boundaries -- not sales pressure. I chose to discontinue care here and find a different provider.

    I am not sure why a normal cleaning would cost me an open balance of $89 while I already paid $49…read moreand insurance reimbursed $637 and I told them I did not have the fluoride but they still charged me anyway.

    Mark A Michna, DDS

    Mark A Michna, DDS

    (10 reviews)

    My experience at this office/practice was horrific, I highly dissuade you from going here. Dr…read more Michna himself was fine, but his office staff are beyond horrible. There were mistakes made with billing from the start, but even worse, I called bc I had part of a crown that cracked on my tooth. They said the soonest he could see me was 4 WEEKS later. Despite me calling to say I had started to have pain and I thought something was wrong, they wouldn't give me an earlier appointment. Then they cancelled on me and it took MONTHS for a reschedule, despite all the info I had given about my situation. THEN THEY CANCELLED on me AGAIN the day of the rescheduled appointment after I had already taken off work and they didn't tell me about it until I was at the office. I can't make this up. THIS COST ME $4K in a root canal and crown (even with insurance) at another dentist. I am truly beyond frustrated and upset about the entire experience. They never apologized or addressed the issue afterwards. They don't care about the well-being and needs of their patients enough to pay attention to serious requests. I heard that the reason they can't keep enough hygienists around (and thus don't have enough appointment slots) is because they refuse to get rid of long standing office staff who are not competent, and people don't want to work in that environment. I genuinely doubt my urgent requests about my tooth were even brought up to Michna or anyone else there. I never take the time to write reviews, but this behavior was egregious and I want to warn others.

    I drive from Novato to Greenbrae to have cleanings and see Dr. Michna…read more The hygienists are all wonderful and thorough. Dr. Michna doesn't push unnecessary procedures and one feels a great deal of trust in his skill. He has done a few filling replacements and one crown over the last 6 years. Each time he showed me exactly where the problem was and why a procedure was needed. He is as good if not better than the Dental practice he purchased several years ago. Like I said, I drive from Novato to Greenbrae to get great dental care!

    Koppe Michael, DDS - generaldentistry - Updated May 2026

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