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Dr. Maria L. Wei is a dermatologist who specializes in melanoma and disorders of pigmentation, both acquired and inherited. She directs the UCSF Pigmented Lesions/Melanoma Surveillance Clinic, which cares for individuals with melanoma as well as patients at high risk for developing melanoma – a group that includes those with a family history of melanoma, those with genetic test results indicating a risk, and those with many moles or large congenital moles.

Wei leads a research laboratory that studies melanoma, investigating the biology of melanin-producing cells and how melanomas become resistant to treatment. The laboratory also seeks to understand the gender disparity in melanoma outcomes (why men and women have different outcomes) and is investigating novel biomarkers for melanoma (measurable substances that indicate the disease).

  • Board Certifications

    American Board of Dermatology, Dermatology, 1996

  • Fellowships

    UCSF, Dermatology, 1997

  • Residencies

    UCSF, Dermatology, 1997

  • Internship

    Brigham and Women's Hospital, Internal Medicine, 1993

  • Education

    Duke University School of Medicine, 1992

  • Languages

    English

Where I see patients (2)

    My reviews

    4.8

    Overall Experience
    523 Ratings
    About our process
    Mar 29, 2025
    I was treated in a very respectful and professional manner. I was listened to and information was given in clear language.
    Mar 28, 2025
    This doctor treated a minor skin condition and reassured me it was not serious. She told me I was due for further screening per my medical records and completed that during my appointment. She gave excellent advice to avoid further exposure to the sun. Overall, this doctor is excellent.
    Feb 28, 2025
    Dr. Wei, MD is a 10 out of 5
    Feb 20, 2025
    I never felt rushed, provider gave me time to ask questions
    Feb 02, 2025
    Dr. Wei is a wonderful, conscientious doctor! I'm so glad I was referred to her by my local dermatologists office!
    Jan 23, 2025
    Dr.Maria Wei is fantastic! She ha so many personal and professional qualities! I've had quite a few fairly serious dermatology issues and Dr. Wei has literally saved my life. I feel fortunate to be cared for at UCSF and by Dr. Wei.
    Jan 21, 2025
    Dr. Wei is a competent and kind doctor.
    Jan 19, 2025
    Competent, thorough, considerate.The doctor made time for me to evaluate the problem; I am very grateful
    Jan 12, 2025
    Dr Wei was very professional
    Jan 10, 2025
    Great experience
    Jan 09, 2025
    Dr. Wei is one of the best providers I've ever seen. She doesn't rush, she listens, and she explains clearly. She's well worth the wait.
    Dec 20, 2024
    Love Dr Wei
    Dec 20, 2024
    Dr. Wei is always friendly but thorough and professional.
    Dec 15, 2024
    Dr. Wei was excellent!
    Dec 14, 2024
    Dr. Wei was outstanding in covering the key areas to be discussed and in a very understandable way addressing questions I had.
    Dec 09, 2024
    Excellent doctor, very thorough, friendly.
    Dec 06, 2024
    I absolutely love Dr. Wei. She is comforting, caring, optimistic, obviously brilliant (which Is also comforting) and communicates with perfect clarity. I wish I never had to see her, but I'm very thankful she's available to me.
    Dec 05, 2024
    I really, really appreciate Dr Wei
    Dec 05, 2024
    Dr. Wei is one of the most thorough and most thoughtful health care providers I have ever been treated by.
    Nov 25, 2024
    Care provider has very little office time each week.
    Nov 20, 2024
    I recommend Dr Wei to everyone who asks
    Nov 01, 2024
    Excellent care with Dr Wei and her team.
    Oct 05, 2024
    I have be a patient of Dr. Wei for several years now. I feel she is very professional and very clear with her diagnosis.
    Sep 25, 2024
    Very good from start to finish
    Sep 22, 2024
    The care provider must have been having a bad day. Bed side manor left a lot to be desired that day.
    Sep 06, 2024
    I feel lucky and blessed to be in the care of Dr Wei. Thankyou.
    Sep 04, 2024
    Dr Wei is extra special. I feel grateful to have her as my Dr. She was so reassuring as to the rarity of melanoma returning after this many years. She did a full body annual check up.
    Sep 04, 2024
    Maria Wei is an outstanding clinician, whose reputation as such proceeds her. I've found her to be a diligent diagnostician, and I have recommended her to people who ask me for my thoughts regarding which of many highly capable physicians @ UCSF to see If they've dermatology concerns, when their concerns Involve skin cancer, particularly if Melanoma is chief among those concerns due to family history et al. Maria Wei is the one physician I'd recommend without reservation.
    Aug 27, 2024
    The Best
    Aug 13, 2024
    The doctor is the best. Listens and truly cares.
    Aug 12, 2024
    Excellent! Proactive treatment on a cyst that multiple doctors over the years did not treat. I am very Impressed.
    Jul 19, 2024
    I love Dr. Wei's caring and compassionate bedside manner. I highly recommend her to everyone.
    Jul 17, 2024
    Most, probably all, of these evaluations should be "Outstanding".
    Jun 26, 2024
    Dr Wei is great! Solved an issue my regular doctor couldn't figure out.
    Jun 09, 2024
    Extremely efficient assessment of the problematic mole, and removal via freezing.
    Jun 07, 2024
    She's fantastic your lucky she's there!!!
    Jun 06, 2024
    Excellent doctor. Explains well.
    Jun 01, 2024
    Dr Wei and Dr Patrick were very professional and made a clear diagnosis and gave me options for treatment.
    May 24, 2024
    Dr wei is a very knowledgeable, caring and respectful physician.
    May 24, 2024
    This was my very first visit to this care provider, but the visit time was limited. The care provider seemed rushing the visit, not discussing in detail about my medical condition.
    May 15, 2024
    I feel that the doctor did not explain my options.I do not know the severity of my skin issue, would like better explanation. I was told I have to wait a week to find out what is going on.
    May 10, 2024
    Best hospital in Bay Area
    Apr 19, 2024
    Dr Wei is the best!
    Apr 19, 2024
    Everything was more than good. It was excellent.
    Apr 15, 2024
    Dr. Wei id the BEST!!
    Apr 14, 2024
    Dr Maria Wei is the best. Last saw her in 2017 and on Thursday she was yet again very professional, with nice bedside manner, and very thorough.
    Apr 12, 2024
    Very impressed with Dr Wei. The experience was excellent and the patient treatment was outstanding.
    Apr 09, 2024
    Dr Wei was outstanding (as FYI, I am a former practicing physician I was extremely pleased)
    Mar 31, 2024
    THANK YOU. I am so grateful to have Dr. Wei as my dermatologist.
    Mar 14, 2024
    Dr. Wei is an excellent care provider. Explains treatment and answers questions. She is very personable and shows concern.
    Mar 07, 2024
    Excellent, the doctor explained very well everything we have to do to improve the health condition.
    Jan 05, 2024
    Dr Wei is simply the best!
    Jan 03, 2024
    My appointment started on time, the nurse and physician were amazing. I waited a long time for the appointment but it was well worth the wait.
    Dec 28, 2023
    I was told to upload my genetic test results regarding melanoma and I can't figure out where to upload them.
    Dec 26, 2023
    Dr. Wei was very friendly. She said she had requested the slides of my melanoma biopsy and would await those before deciding how to proceed. No timeline was given on when we might hear back regarding next steps.
    Dec 22, 2023
    Dr Wei is very efficient and thorough
    Dec 17, 2023
    Excellent care and expertise!
    Dec 07, 2023
    Doctor Wei was patient and clear in listening to my questions and concerns and responding completely to them. She never seemed in a rush.
    Nov 29, 2023
    Dr Maria Wei is a very special member of the UCSF derma team.
    Nov 29, 2023
    Dr Wei is excellent!
    Nov 17, 2023
    Dr. Wei was in a hurry and told me so she did not have time to give me a full body exam and that Idid not need on for another s 6 months and then as I mentioned her schedule is not open... The appointment was rushed and I am not happy with that.
    Nov 15, 2023
    Dr. Wei is caring and answers questions. An excellent physician.
    Nov 03, 2023
    It was a pleasant experience considering the stage of my melanoma.
    Nov 02, 2023
    I am so glad to have Dr. Wei as my care provider.
    Oct 18, 2023
    Dr Wie is The Best!!
    Oct 17, 2023
    Dr Wei is awesome
    Oct 16, 2023
    Dr Wei is Awesome! I've had a lot of dermatology issues and Dr. Wei has literally saved my life. She is extremely knowledgeable, great communicator and just great at what she does. I really appreciate the care given to me by Dr Wei and all of UCSF!
    Oct 08, 2023
    Dr. Wei is the BEST of the BEST!!
    Oct 06, 2023
    She was excellent!
    Sep 28, 2023
    Dr Wei is amazing seems like over scheduling her is always the issue need to schedule less patients per day always 45-1 hour wait time
    Sep 28, 2023
    I came in to see Dr Wei as my regular provider did not have appt available for awhile. After waiting for so long I was frustrated by the time the doctor came in and she was not receptive to that frustration (am sure she had a long day as well so I get it) but she made me feel even worse about being there as I came in sooner than she felt I should be getting a follow up (my regular doctor said every 6 months is fine and she felt a year was sufficient, and I came in sooner than 6 months). I think the appt just started off on the wrong foot but I felt really bad after leaving, and these appointments are stressful as it is.
    Sep 27, 2023
    Exceptional, professional and empathetic
    Sep 23, 2023
    Provider seemed pressed for time. Exam seemed more rushed than usual. Concerned that my previous health problems were not taken into account.
    Sep 21, 2023
    Maria is amazing!
    Sep 15, 2023
    Excellent, thank you!
    Sep 14, 2023
    Dr Wei was kind and considerate. It took us a minute to get our communication style down but that's to be expected. She was reassuring about my skin care.
    Sep 01, 2023
    I really like Dr. Wei. I gained additional information from her. Thank you. I like the printout with the after visit summary.
    Aug 30, 2023
    Very good
    Aug 23, 2023
    I felt that the doctor was highly competent and trusted her medical decisions. I am grateful I was able to eventually get an appointment her. However, like the assistant, she was clearly under too much time pressure to encourage questions and give thorough explanations. The experience from the check in person to the assistant to the doctor visit left me feeling the stress that they clearly feel. I wish there had been time to ask questions about the various skin conditions and about preventative care. I noticed that after visit notes had written in them that things were "discussed" with the patient that were never even mentioned. Presumably these are automatically included in every note whether or not they are actually discussed. Let me be clear that I felt that the doctor was highly competent and I'm sure if she were under less time pressure, she would have been more patient. I felt for her and the staff for having to rush like they were in some sort of race. That time pressure very at did not make for a better patient experience. Care at UCSF is expensive. I would expect the doctors and staff to have working conditions that allow them to make patients feel comfortable.
    Aug 18, 2023
    This was my first visit with this doctor and I z was very happy.
    Aug 14, 2023
    I am a continuing patient. Dr. Wei is a fantastic dermatology physician in every way. She is consistently excellent.
    Aug 11, 2023
    I was grateful to be scheduled with a care provider who was professor with impressive expertise. I believe this is the most important consideration. It was not on the above list.
    Aug 04, 2023
    She was very thorough and explained things well.
    Aug 03, 2023
    Dr, Wei is outstanding. I have a lot of serious and I'm extremely confident in her care
    Aug 02, 2023
    I'm still a bit confused about the care of the wound going forward.
    Jul 28, 2023
    Dr. Wei is a wonderful and talented melanoma specialist. I appreciate being able to see her.
    Jul 14, 2023
    Excellent in every way.
    Jul 05, 2023
    It was my first time seeing this physician. I found her condescending and curt. I do not plan to see her again.
    Jun 29, 2023
    She seemed thorough and friendly, but examined me very quickly, probably because she was running an hour late. I did not get the impression that she was distracted, and I was not particularly worried that she missed some thing.
    Jun 29, 2023
    Best melanoma clinic in California. But appointment scheduling and lateness are a big problem
    Jun 28, 2023
    Her instructions were clear and fast. I had to listen hard to remember her instructions. I just wished she paused and gave me a chance to ask questions.
    Jun 23, 2023
    Dr. Wei care makes up for the difficulties in scheduling
    Jun 17, 2023
    Health care is challenging but the care that I receive from Dr Wei is OUTSTANDING; she is both an excellent physician and human being! Thank you!
    Jun 16, 2023
    My only issue was the wait time. If UCSF is going to ask me to be 15 minutes early to my appointment then they shouldn't make me wait an additional 45 minutes. Makes no sense.
    Jun 02, 2023
    Dr Wei is an exceptional physician. Incredibly competent and efficient. She welcomes any questions and concerns you have. I never feel hurried. I have so much confidence In her. Seeing a dermatologist on an ongoing basis Is stressful; she makes It a bearable experience.
    Jun 01, 2023
    The wait time is the sole issue, but it's significant

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