93.0% would refer friends and family to us

5 stars Customer since 2012

Dr. Maas's professional expertise, knowledge, bedside manner and patient care are beyond exceptional. I have trusted him with my needs and the needs of my friends and family for years!

4 stars Customer since 2017

The wait this weekend was a bit long, but the team was kind and generous in dealing with the minor inconvenience. Overall, I still had a great experience. Dr. Maas does incredible work, is kind, thoughtful, and thorough in his approach. The entire staff is professional and warm. 10/10 recommend!!! Thanks so much!

4 stars Customer since 2005

Professional and friendly staff. Moreover, on time--no excessive wait.

5 stars Customer since 2017

The comprehensive, professional staff at Mass Clinic represent the highest level of patient care. Before, during and after treatment they communicate with you, easing the process but more important, letting you know how important their patients are. I personally feel confident knowing I am in Dr Mass and his team's medical care.

4 stars Verified customer

Always pleased with the treatment except that Dr. Maas always runs late.

5 stars Customer since 2014

The Maas Clinic is a winner- have been going there for a few years now and not only is the medical care outstanding but the staff is amazing! I highly recommend Dr. Maas and his practice.

5 stars Customer since 2006

Mona is warm, wonderful, and professional.

5 stars Customer since 2017

Extremely valuable information was given from the nurse at the intake. She was thorough and extremely knowledgeable. She helped me more that any other medical person I have seen about my issues, and gave me some incredible advice. So very thankful!

5 stars Customer since 2003

Danielle was a pleasure to work with. She had familiarized herself with my history at the clinic prior to my appointment, asked follow-up questions, and tailored the intensity of the IPL treatment to achieve results without pain. I would unhesitatingly put myself in her capable hands again.

5 stars Customer since 2017

I had a wonderful experience at The Maas Clinic this weekend. Their staff was friendly and professional and provided all of the information that I needed for my service. I can't wait to see the long term results of laser treatments with them!

Also in San Francisco


Vivian W. Cui, D.D.S.

5 stars 763 reviews

This visit with the hygienist did not live up to your high standards nor with my past experiences with other hygienists in your office. She seemed inexperienced and the only term I can think of is "sloppy." I asked for the nitro when she brought me into the exam room and was told, "No, we are not doing that today." I asked if there was any reason why not and she did then go and ask somebody. Eventually, I was hooked up, although I had the feeling she was not quite sure what she was doing. At one point, I felt like to confessing to all crimes because I was swallowing more water than she was being pulled out by the tube...sort of like waterboarding. In all seriousness, I adore Dr. Coi and the fact that I can bring Leila. I love the office and everyone in it, except my last hygienist. If she is still there for my next visit, please do not schedule me with her.
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Drs. Taura, Fong & Shinbori

5 stars 697 reviews

100% would refer friends and family to us