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Roy C. Grekin


Director, Dermatologic Surgery and Laser Center

Dr. Roy Grekin directs the Dermatologic Surgery and Laser Center. He cares for patients with a variety of skin disorders, including certain kinds of skin cancer. He is a specialist in Mohs micrographic surgery, a precise technique for removing facial tumors while preserving healthy tissue.

Grekin's extensive experience includes cosmetic dermatology. He uses lasers to treat common disorders such as port-wine stains and other pigmented lesions, facial veins and warts.

Grekin is a member of several professional societies, including the American Medical Association, American College of Mohs Surgery and American Society for Laser Medicine and Surgery.

  • Education

    University of Michigan, 1977

  • Board Certifications

    Dermatology, American Board of Dermatology

  • Academic Title


Where I see patients (1)

    My reviews


    Overall Experience
    860 Ratings
    About our process
    Feb 03, 2023
    Dr. Grekin rocks. The fellows and nurses also tops.
    Feb 03, 2023
    Dr Grekin and the two fellows and the surgeon who did my repair were fabulous
    Feb 02, 2023
    The doctors were excellent. They were friendly respectful to my questions and answered them clearly.
    Jan 28, 2023
    Dr Grekin is very kind skilled and knowledgeable. I trust him to take good care of me.
    Jan 24, 2023
    Professional polite courteous confident knowledgeable responsive respectful service and support.
    Jan 19, 2023
    Happy I was able to be treated by this doctor
    Jan 18, 2023
    Dr. Roy Grekin is an extremely knowledgeable care provider who gives me good confidence in his ability and his judgement for me to make intelligent decisions about my condition. He is also very clear and concise in his explanations which I appreciate.
    Jan 13, 2023
    Dr. G and the whole staff were very helpful and competent.
    Jan 13, 2023
    Dr Grekin is fantastic
    Jan 13, 2023
    Dr Grekin is the best Dermatologist I have seen
    Jan 10, 2023
    Doc Roy Grekin the Best of the BestGreat hands w a meddle or laser !!!!!
    Jan 06, 2023
    Dr. Grekin is superb.
    Dec 29, 2022
    I can't imagine how this could have gone better.
    Dec 28, 2022
    My bandage that was set for the next 24 hours positioned tape that abraded my eyeball which I couldn't tell until after numbing wore off & we were miles away from clinic. We were given eye drops to help with pain but no direction on use.
    Dec 28, 2022
    Roy Grekin is excellent. The best ever!.
    Dec 28, 2022
    All excellent
    Dec 18, 2022
    Dr. Grekin was wonderful. Clearly highly experienced; explained things very well listened well summarized well; I was fairly well informed before I came but he really exceeded my expectations in the way he treated me and explained things. You can also tell he sets a really good tone with the other people in the practice; the residents fellows nurses everyone. You should have a rating higher than "very good" for him and this practice. It was excellent
    Dec 15, 2022
    Care and attention was universally excellent
    Dec 14, 2022
    Very. Grateful for the doctor and care team
    Dec 09, 2022
    Excellent surgeon who did a wonderful job on the surgery he performed.
    Dec 07, 2022
    Dr Grekin knows his stuff and even has a sense of humor that aligns with mine.
    Dec 06, 2022
    Dr Grekin showed empathy and was very thorough with his explanations about what he was doing. Both the cause of my Issues and what he was doing to correct them. He seemed to give me ampleTime to ask questions and didn't seem rushed to get to his next patient.
    Dec 02, 2022
    Honestly really good service all around. The nurses and doctor were extremely nice and helpful with any questions.
    Dec 02, 2022
    I admire and respect the knowledge and acumen of the provider however pre-and post communications from the entire system are lacking
    Nov 29, 2022
    I really like Dr. Grekin.
    Nov 25, 2022
    Excellent staff
    Nov 22, 2022
    Dr. Grekin was extremely professional yet warm and friendly as he explained the risks benefits and alternatives to my upcoming procedure as well as my aftercare instructions. I felt very comfortable during the procedure as he kept me abreast of all of the steps as he was proceeding. I left feeling confident and assured that I received excellent care will most likely have a great outcome.
    Nov 19, 2022
    I would give "Excellent or Outstanding " to care provider in place of "Very Good".
    Nov 18, 2022
    Love Dr. Grekin! Who doesn't? :) he is great very knowledgeable experienced friendly doctor. He always listens to my concerns which is important. In the past I've seen several doctors (dermatologists) I had like 2 mins talking to them and that was it. Unlike Dr. Grekin he listens to my concerns. He cares about skin (face) problem. He always tries to come up with solutions for my skin. Highly recommend him to anyone! Thank you Dr. Grekin for everything you do.
    Nov 18, 2022
    Procedure was aborted because referring doctor's office did not provide sufficient information on the site to be treated.
    Nov 17, 2022
    Excellent experience
    Nov 12, 2022
    UCSF Derm team with Dr. Roy Grekin are amazing in providing quality care. My partner and I felt very much that we were part of the overall process.
    Nov 10, 2022
    Dr Grekin is a genius. The only reason I'd hesitate to recommend him is from fear that he'll become even more in demand and then hard to get appointments with!
    Nov 08, 2022
    Great experience with Dr. Grekin.
    Nov 03, 2022
    I wish he had more clinic time. More appts.
    Nov 03, 2022
    Professionalism put my mind at ease
    Oct 28, 2022
    The entire team was outstanding. Dr Grekin is brilliant personable respectful and a very cool guy.
    Oct 28, 2022
    While it was reassuring to have 3 doctors in the room and I understand that UCSF is a teaching hospital I kinda felt that the docs 'talked shop' too much instead of setting expectations for me on what was going to happen next checking in with me when I was in discomfort.
    Oct 28, 2022
    Did a superb job removing a melanoma from my nose and reconstructing the area so it is almost undetectable.
    Oct 27, 2022
    As said Dr. Grekin and his medical support staff are excellent.
    Oct 26, 2022
    I have known Dr. Grekin for over 20 years and his quality of care was always excellent. He has treated family member many close friends and I have referred many people to the practice. However at this appointment it seemed that Dr. Grekin Was over scheduled. I booked my appointment 3 months in advance and a 2 hour window was blocked. However when I arrived Dr. Grekin was rushing to see other clients. They did not have 2% lidocaine only .5% during the procedure and I felt a lot of pain. I wish the procedure had been rescheduled! I have worked in the health care Industry for over 20 years and this experience has been very traumatic for me. The procedure was rushed and I felt was incomplete with some very inexperienced staff working there. There were experienced staff there and I wish I had them for all of my years of attending the clinic.
    Oct 23, 2022
    I feel I will get good care.
    Oct 13, 2022
    Dr. Grekin is always professional thorough and very caring. He always answers my questions and addresses them very thoroughly.
    Oct 13, 2022
    For knowledge and concern yes. But neither he nor attending mentioned follow up what to watch for any restrictions post treatment.
    Oct 12, 2022
    Dr. Grekin is a benchmark for excellent patient care
    Oct 05, 2022
    Dr Grekin was very helpful regarding an alternative to Mohs for one area on my face that might be preferable to cutting. I appreciate that alternative
    Oct 01, 2022
    I was very comfortable around all the employees it's great to see and feel such a happy Environment you can tell they are really enjoy working with Dr. Grekin and in that facility.
    Sep 30, 2022
    Very pleased with quality of experience
    Sep 29, 2022
    The best
    Sep 29, 2022
    Tendency of doctors to speak about me in the third person -as if I'm not sitting there listening - is slightly disconcerting but I'm getting used to it after the fourth visit.
    Sep 23, 2022
    It's a very friendly place
    Sep 22, 2022
    Too bad one has to go through UCSF to access care provider
    Sep 18, 2022
    Sep 18, 2022
    Dr. Grekin could not have been nicer or more competent
    Sep 14, 2022
    Dr. Grekin is the model practitioner! An outstanding professional an articulate person a physician-surgeon who listens and explains. He is not one to cookie cut; he explains makes certain the patient gets it and has something to say. He Instills more confidence In 2 minutes than so many others take years to relax enough to.
    Sep 09, 2022
    Dr Grekin is the absolute BESTHe makes me feel heard and does what he can to achieve the goal at hand
    Sep 07, 2022
    Thorough followup care instructions were in the after visit summary and printed out for me before I left. I recall discussing specifics of follow up care with one of the nurses not the care provider.
    Sep 03, 2022
    Doctor addressed primary problem but also addressed new infection which was most appreciated by me.
    Sep 02, 2022
    Advise Mohs patients to bring a lunch or snacks.Waiting for test results sometimes takes a long time. Drop by just to let patient know they are still waiting
    Sep 01, 2022
    Doctors were fantastic.
    Sep 01, 2022
    I was so impressed not only by the care I received but by the obvious pride and joy the entire staff of the Dermatology Unit takes in their work. First-class.
    Aug 31, 2022
    I know it's the best doctors but it was so confusing having so many people attend me with no one in charge when I left. Now I am home and I have had to call nurse twice
    Aug 28, 2022
    Dr Grekin was excellent. He was very good with the surgery and just a pleasure to work with.
    Aug 27, 2022
    I do not recommend medical professionals to anyone. It is a personal decision and experience - everyone's expectations and needs are different.
    Aug 25, 2022
    Dr. Grekin is simply wonderful. I really appreciate his manner and the way he hears my concerns.
    Aug 24, 2022
    Very pleased with both the doctors who took time evaluate my health issues.
    Aug 18, 2022
    I would refer people to my physician Dr. Grekin and his team but at the same time would NOT recommend USCF.
    Aug 18, 2022
    I was scheduled for Mohs surgery and it appeared my records had not been reviewed until that day so they decided to take specimens and then wait a week or two to do whatever surgery will be warranted.
    Aug 13, 2022
    Dr. Grekin and his staff are first class!
    Aug 12, 2022
    Dr Grekin the BEST !!!!!!!
    Aug 11, 2022
    Always first class
    Aug 10, 2022
    Dr. Grekin and his staff always provide top quality care
    Aug 05, 2022
    I appreciated the 32gauge needle it minimized the injection pain
    Aug 04, 2022
    My UCSF Medical experience was excellent.
    Aug 03, 2022
    Dr Grekin explained everything about to happen and why and how I should take care of what was next.
    Aug 01, 2022
    Dr. Grekin and team are as good as it gets. The best.
    Jul 29, 2022
    Dr. Grekin and associate doctors and nurses were wonderful
    Jul 28, 2022
    Dr. Grekin talked w/ me before and after surgery for maybe 5 minutes total but a 2nd year fellow did the entire surgery & anesthesia.
    Jul 27, 2022
    Dr Grekin and the derm fellow were wonderful
    Jul 21, 2022
    Unexpected cancellation by provider but rescheduled promptly.
    Jul 19, 2022
    Could not ask for better care
    Jul 16, 2022
    I never give referrals for medical care.
    Jul 12, 2022
    All good especially the resident. .
    Jul 06, 2022
    Love them all
    Jul 04, 2022
    Dr. Grekin is an excellent doctor and described exactly what would be done. He asked if I had any questions before setting up follow up visit
    Jun 13, 2022
    In my opinion if a patient needs dermatology surgery Dr. Grekin and his department is where to be. He is top expert in the field he takes time to explain everything his Fellow and Resident teams who cared for me and my surgery were exceptional they also took time to explain everything and they all make a patient feel comfortable and like family. I have options closer to home but I gladly and gratefully choose to travel to Dr. Grekin and his dermatology surgery department at UCSF.
    Jun 12, 2022
    No complaints whatsoever. A wonderful Dr. Grekin and his team!
    Jun 09, 2022
    I received EXCELLENT treatment all the way.
    Jun 08, 2022
    Staff excelled at all aspects of care during my visit even those not assigned to my case.
    Jun 03, 2022
    I greatly appreciate Dr. Grekin's professional and approachable manner. It is always a pleasure to see him.
    Jun 02, 2022
    The care provider named seemingly did not have enough time to talk with me about my condition and did not even ask me whether I had some questions or concerns. He had his assistant do it for him! But I must confess that his assistant was a great doctor and a very friendly person. I am grateful to him.
    May 24, 2022
    Absolutely love Dr Grekin's great skill with filler and amusing perfect attitude and "chair side" manner!
    May 19, 2022
    Very good
    May 05, 2022
    Dr. Grekin is clear in explaining what he recommends and why. I have complete trust in him.
    Apr 29, 2022
    A really exemplary experience
    Apr 22, 2022
    Dr Grekin and his team are awesome. Very much appreciate having them care for me.
    Apr 15, 2022
    I was extremely well taken care of and included in every change.
    Apr 13, 2022
    The attending was abrasive and condescending. I asked questions about alternative laser treatments and he was dismissive. He did not seem to care about my concerns.
    Mar 31, 2022
    Dr. Grekin is very knowledgeable about my procedure and attends to all my concerns and questions. I trust him!
    Mar 30, 2022
    Dr. Grekin wants to see me every year.
    Mar 29, 2022
    Mar 26, 2022
    Good results
    Mar 17, 2022
    Mar 06, 2022
    I would have appreciated a visit by the provider while the resident was suturing my face to assure me that there was appropriate oversight.
    Mar 02, 2022
    Great care!
    Feb 10, 2022
    The experience was good in that I felt the doctor etc al helped me to make a good choice about future treatment
    Feb 08, 2022
    This doctor is very clear and a great communicator
    Feb 02, 2022
    I was referred to USCF because I had an extremely large basal cell tumor on my nose. From the beginning I was reassured that I had the "best of the best" taking care of me. However I have had 3 previous Mohs surgeries at Golden State Dermatology and felt I was better cared there than at USCF. The pain management wasn't as good as at Golden States Dermatology and the tumor was so large that my discomfort went beyond simple pain management. It reached the point that attempting to numb the regions was becoming itself painful and extremely unpleasant.UCSF is a teaching and research institution. According to Wikipedia there is criticism about the overuse of the Mohs procedure. It seems obvious to me that my procedure was at the very least an opportunity to advance the understanding of Mohs procedures for large tumors. There was a dissertation topic being overlooked which makes my treatment even more unfortunate. The next unfortunate person in similar circumstances will suffer just as much as I did because nothing was learned from me. I had hoped for better on all counts and was deeply disappointment.
    Jan 20, 2022
    Jan 14, 2022
    Dr Grekin was approachable and open to any and all questions. He provided clarity around the procedure and instilled confidence in me the patient.
    Dec 15, 2021
    This was a referral for definitive procedure.
    Dec 09, 2021
    Nov 10, 2021
    Dr Grekin and his staff are terrific. I was so pleased with the care and attention I got at UCSF that I may move all my healthcare there.
    Oct 29, 2021
    Dr. Grekin has always made me feel comfortable and at ease. I have felt free to ask questions before during and after my surgery.
    Oct 27, 2021
    I will definitely return to Dr. Grekin if I need to!
    Oct 26, 2021
    No one followed up on aftercare in the days after surgery. Unable to discuss pain management.
    Oct 21, 2021
    Dr. Grekin was exceptional in his informative and kind interactions. Dr. Rosenfeld was caring and patient as he prepared me with Info both prior and in completing the surgical procedure. This medical team are a credit to their profession for their knowledge skills and abilities.
    Oct 20, 2021
    Excellent service
    Oct 07, 2021
    I requested Dr. Grekin because of previous treatment by him. He is superb.
    Sep 18, 2021
    So far we have not discussed follow-up care.
    Aug 20, 2021
    Dr. Roy Grekin is an artist and he and his team were terrific. I am thankful for the care I received.
    Aug 04, 2021
    Dr. Grekin consistently demonstrates professional excellence he has an engaging and supportive approach and he has earned my trust. I wish other doctors had his skills and personality. He is the very best!
    Jul 29, 2021
    Absolutely the best!!!!!!!!!!!!!
    Jul 22, 2021
    Class all the way
    Jul 08, 2021
    Dr Grekin is extraordinary-competentputs one at easehas a delightful sense of humor . My husband has had a couple of Moh's surgeries with him and considers him the best. His assistant for this surgery a wonderful yhoung Chinese female whose name escapes me nowwas also outstanding.
    Jun 18, 2021
    My first consult went fine he explained thoroughly what the procedure would entail. The procedure went well although I have yet to fully recover - he said it would take up to a year. After the procedure I went back the next morning & he changed the bandages. A week later I had a follow up appointment in which he spent less than 5 minutes with me. The next appointment was the one he never showed up or even called or sent an email or text.
    May 28, 2021
    I'm not under the impression that there was much choice for me in any aspect of this procedure which I accept. I did question the need for the long "L" repair/scar of the incision site (on my nose) and was assured it was best.
    May 21, 2021
    A model practice in terms of professionalism humanity polish focus lack of tension that so often marks others. It is a wondere andrful enclosure of competence and experience and purpose.
    May 14, 2021
    Next I go to the clinic and "get the job done!"
    May 13, 2021
    the surgeon was incredibly competent but also humble and listened and explained things to me all along. I was made to feel comfortable in asking questions.
    May 11, 2021
    great follow-up with Dr.
    May 06, 2021
    Dr Grekin was wonderful clear informed and showed that he cared. His years of experience show. UCSF is fortunate to have him.
    Apr 30, 2021
    the follow up care was carefully explained to me with the reasons why I should perform them. Also I was given a care sheet on my way out.
    Apr 29, 2021
    Of course I received a printed print-out.
    Apr 22, 2021
    EVERYONE was most professional and caring.
    Apr 11, 2021
    he under sold the risks and brushed off my concerns. when i was waiting to check out at the reception desk i heard him speaking to someone about how things will pick up and with more consultation ms there will inevitably be more surgeries. i felt like he was selling me something rather than providing true care.
    Apr 11, 2021
    it would have been helpful for me to understand a little more about what the healing process would look like a little more.
    Apr 10, 2021
    great care.