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Roy C. Grekin
4.9 out of 5 (605)
Roy C. Grekin

Roy C. Grekin, MD

Dermatology | Laser Surgery and Cosmetic Dermatology

Director, Dermatologic Surgery and Laser Center

Dermatologic Surgery and Laser Center
1701 Divisadero St.,
San Francisco, CA 94115
(415) 353-7878
4.9 out of 5 (605)
Virtual visits available
4.9 out of 5 (605)
Virtual visits available
Dermatologic Surgery and Laser Center
1701 Divisadero St.,
San Francisco, CA 94115
(415) 353-7878

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.

  • Board Certifications

    American Board of Dermatology, Dermatology, 1982

  • Residencies

    University of Michigan Hospitals and Health Centers, Dermatology, 1981

  • Internship

    Saint Joseph Mercy Health System, 1978

  • Degree

    University of Michigan, 1977

  • Languages

    English

Conditions I specialize in

Treatments I provide

Where I see patients (1)

    My reviews

    4.9

    Overall Experience
    605 Ratings
    About our process
    Mar 29, 2025
    Dr Grekin is a true professional with a great sense of humor and compassion
    Mar 26, 2025
    Dr Grekin is excellent in all phases of the surgical procedure!
    Mar 18, 2025
    Fabulous. Dr.
    Mar 17, 2025
    I received excellent care from Dr. Grekin.
    Mar 16, 2025
    Dr. Grekin is absolutely outstanding. UCSF should use him as a model for other doctors. Dr. Grekin is extremely knowledgeable, is an excellent communicator, instills confidence, and brings his experience to the benefit of the patient in part by spotting issues which he then explains and addresses effectively.
    Mar 15, 2025
    Very short visit. Plenty of detail in notes. Limited discussion in office. Wasn't really too much to report on.
    Feb 19, 2025
    Everyone was just great. Supportive, kind, incredibly expert. I guess the only possible suggestion is that a nurse might call people a day or so after procedure, see if there are any questions or concerns, as sometimes happens after being in ER. That said, doctors make it very clear that they will come in, day or night, if patients call them with things that need tending-which is amazing, and covers the most important things.
    Feb 10, 2025
    Dr Grekin is fantastic and he takes incredible care and interest in his patients' procedures , the follow up and going out of his way to make the patient aware of every step and detail of their care
    Feb 07, 2025
    Dr. Grekin is the best dermatologist. I have been his patient for the past 20+ years.
    Feb 05, 2025
    Top notch, as always.
    Feb 05, 2025
    An outstanding clinician who provided excellent information about possible treatments and expected results in a very helpful and balanced manner!
    Jan 31, 2025
    Dr. Grekin is the best! No nonsense just expert advice and procedures.
    Jan 31, 2025
    My experience with the doctor and staff were excellent.
    Jan 30, 2025
    The procedure, the care , the explanationsAnd no one rushed me or the operation or time in the room . Every detail was perfect and the doctors and the nurse were fantastic and very compassionate
    Jan 17, 2025
    Dr. Grekin is fantastic. Period.
    Jan 16, 2025
    Dr. Grekin is warm, personable, compassionate and a great communicator! Although having surgery is no picnic, it was kinda fun being there because of his good humor and the warmth and friendliness of his staff. Great job!!
    Jan 16, 2025
    Excellent staff and Doctors.
    Jan 09, 2025
    I learn so much about my diagnosis, and treatment decisions. During his skilled observation he speaks aloud his findings, what he sees and what he is going to do with methods that appear based on scientific knowledge and experience. His comments are objective. His manner is easy, his style seems contagious as his assistant/colleagues and staff seem equally friendly , confident, skilled, and relaxed. I trust them.
    Dec 17, 2024
    Excellent
    Dec 14, 2024
    Taken on time/ treated well
    Dec 11, 2024
    Dr Grekin is wonderful. This is the 5th time I've seen him. He is super friendly, has a great sense of humor and calmness, and is a remarkable professional surgeon who puts one at ease. Feel really comfortable in his care.
    Dec 08, 2024
    I trust my provider 100 %
    Dec 08, 2024
    Excellent work by all I came into contact with. Thanks
    Dec 06, 2024
    Love Dr Grekin!
    Dec 04, 2024
    Great of professional athletes
    Dec 04, 2024
    Excellent experience
    Dec 03, 2024
    Dr Roy Grekin FABULOUS !!!!!
    Nov 13, 2024
    Awesome
    Nov 08, 2024
    Dr. G is an amazing physician with exceptional people skills and a commitment to educating future dermatologists. I consider myself very lucky to have Dr. G caring for me at UCSF. I only wish all physicians were like Dr. G.
    Nov 08, 2024
    All good.
    Nov 07, 2024
    Dr. Grekin is terrific!
    Nov 03, 2024
    Dr. Grekin and his staff are excellent
    Oct 31, 2024
    The best
    Oct 24, 2024
    Had a great visit
    Oct 18, 2024
    Wonderful, calm experience. Dr. Grekin's and staff are courteous and knowledgeable.
    Oct 17, 2024
    Dr. Grekin is the best. I have complete faith in him. He's done most all of my surgeries.
    Oct 13, 2024
    Dr. Grekin is an extraordinary surgeon and individual. Highly competent, xlnt communications, 100% confidence in him.
    Sep 19, 2024
    Dr. Grekin has done several surgeries on my melanoma in situ problem.
    Sep 12, 2024
    Excellent
    Sep 11, 2024
    Lack of explanation of choice of wound closure
    Sep 06, 2024
    Dr Grekin is clearly experienced and I am incredibly grateful for the care he put in my surgery. The assisting doctor (I forgot his name) was excellent too, and a great addition personality wise.
    Sep 05, 2024
    Dr, Greskin and his team were very helpful and friendly. Could lot nave gone better.
    Aug 23, 2024
    I was really disappointed because I wasn't given any paper work as what to do with the adhesive on my lips. They did put it on before I left, but I had no idea how to apply it when I got home. Nor did I know that I had to replace twice a day.
    Aug 22, 2024
    Dr. Gerkin provided excellent surgical follow up care along with options for dealing with my skin graft following melanoma surgery.
    Aug 21, 2024
    Dr. Grekin is terrific. He provides great treatment procedures with outstanding results.
    Aug 20, 2024
    I recommend Dr Grekin often. He is terrific !
    Aug 16, 2024
    I fly in from another state for Dr. Grekin
    Jul 25, 2024
    Everyone was great.
    Jul 19, 2024
    From start to finish I felt cared for and knew I was in good hands
    Jul 13, 2024
    Step by step explanations eased me through the procedure. Also, Dr. Grekin's humor and friendliness helped too.
    Jul 11, 2024
    Dr Grekin was amazing and so committed to a good outcome for his patients. I trust him implicitly and Dr Singh was very supportive.
    Jul 09, 2024
    Dr Grekin looked at my skin and knew exactly what I needed! I'm so happy with the outcome.
    Jul 09, 2024
    Easy, quick, professional, informed but no over-informed. Great experience.
    Jun 28, 2024
    Dr. Greken and staff were marvelous
    Jun 25, 2024
    He answered all my questions.
    Jun 21, 2024
    Roy and his staff were amazing!
    May 12, 2024
    Dr Grekin is a wonderful physician and is an incredible asset for UCSF.
    May 10, 2024
    He is very considerate and gave me lot of confidence to be at work and social activities.
    May 08, 2024
    Dr. Grekin is an exceptional doctor. He is an expert in his field, he is easy to talk to, gives his undivided attention, cares about his patients and listens.
    May 04, 2024
    Skillful, professional, kind doctors and nurses
    May 03, 2024
    Dr Grekin is an excellent doctor and I have the utmost respect for his analysis and treatments.
    Apr 30, 2024
    Dr G was awesome! So happy I was referred to him. And I will be telling everyone about my experience.
    Apr 29, 2024
    Dr. Grekin is a gem! Love his expertise as well as his bedside manner!
    Apr 24, 2024
    Dr Grekin is great. But I want to give a shout-out to the Fellow who initially came in to discuss my issue. He was wonderful and exuded kindness and compassion. He also had a great "doctor voice" which instantly put me at ease.
    Apr 24, 2024
    Dr Grekin deserves a "6":-)
    Apr 24, 2024
    Excellent in every way
    Apr 24, 2024
    Amazingly positive!
    Apr 19, 2024
    Absolutely adore Dr G ! He's the best!
    Apr 09, 2024
    Very good!
    Apr 05, 2024
    Dr. Grekin is absolutely great! He is the ultimate combination of extraordinary knowledge, skill, professionalism, and wonderful "bed side manner".
    Apr 04, 2024
    Dr. Grekin is a larger than life personality who demonstrates great empathy and concern for patients. I find him very engaging and very informative. He has a tremendous sense of humor and I feel very fortunate to have him looking after my dermatology issues. What an amazing human being!
    Mar 29, 2024
    Roy is the man!
    Mar 28, 2024
    Dr Grekin and his staff are excellent
    Mar 22, 2024
    Dr. Grekin and his fellows and residents were friendly, capable and informative.
    Mar 20, 2024
    Could not have been better.
    Mar 19, 2024
    Dr grekin terrific
    Mar 14, 2024
    Dr. Grekin is the best!
    Mar 13, 2024
    Great experience. Dr Grekin is a master at addressing cancer with surgery and ensuring that cosmetically the scars work with face contours. Follow up on scar management and flattening worked really well.
    Jan 09, 2024
    Very professional. And caring
    Dec 29, 2023
    DR. Grekin is simply the best
    Dec 29, 2023
    Dr Grekin was extremely helpful, kind and communicative about the procedure. I am always grateful to be able to see him.
    Dec 28, 2023
    A long but excellent day. A very professional and kind team. Would definitely recommend them to others.
    Dec 08, 2023
    Very good
    Dec 08, 2023
    Perfect
    Dec 06, 2023
    The best experience ever
    Dec 03, 2023
    Excellent experience
    Nov 30, 2023
    Dr Grekin was Excellent. I am grateful to be his patient. The surgery went well, he "got it ALL" first time, no need to go back. He takes one look & he knows what he is dealing with. He Is The Best surgeon & he connects so well to his patients !
    Nov 29, 2023
    Dr Grekin is the best! His skill and care is at the pinnacle.
    Nov 29, 2023
    Explained everything and excellent bedside Manner which put me at ease
    Nov 21, 2023
    Best
    Nov 17, 2023
    Dr Grekin is very kind and knowledgeable. He has a great sense of humor and makes me feel very comfortable.
    Nov 10, 2023
    Dr. Grekin provides step by step explanations of what he is doing and why and makes one feel very well taken care of. He also does not make one feel he is rushed and thinking about the next patient/problem.
    Nov 09, 2023
    I was very impressed
    Nov 09, 2023
    Dr. Is terrific.
    Nov 02, 2023
    Experience was chaotic. I was not sedated so heard them working on my leg, very upsetting. Then it was like an assembly line. The Dr was working on maybe 5 patients at a time and would pop in and out and I was just waiting in the meantime with a 4 inch gash in my leg. Very unsettling and unpleasant.
    Oct 31, 2023
    I could not ask for better care.
    Oct 30, 2023
    Excellent care. Dr. Grekin explained everything and listened to me and my concerns.
    Oct 21, 2023
    Dr Grekin was extremely professional and me with great respect and thoroughly explained all aspects of my treatment. I very much appreciated his skill and care.
    Oct 19, 2023
    I actually did not see Dr Gretkin; I saw a fellow
    Oct 19, 2023
    This was an excellent experience. The professionals who worked on me made me feel secure.
    Oct 18, 2023
    Great over all experience.
    Oct 16, 2023
    My procedure required stitches and I wasn't informed when the stitches should be removed
    Oct 12, 2023
    I felt well informed at each step of the process and I felt my questions were always answered fully and clearly.
    Oct 12, 2023
    Fabulous office staff
    Sep 30, 2023
    The lab work on my slides was extremely slow--almost 3 hours for the first slides. Was left to wait in my room with no explanation for the delay (was supposed to be 1 1/2 hrs.
    Sep 28, 2023
    Dr. Grekin team was the best
    Sep 27, 2023
    Mohs department always just wonderful to me. I've sadly had to use their services several times. Doc Grekin-whatta guy!
    Sep 22, 2023
    Dr. Roy Grekin is known as one of the top specialists within the field.
    Sep 21, 2023
    Great doctor
    Sep 13, 2023
    Dr. Grekin is terrific!
    Sep 01, 2023
    Great at giving info to his 'fellow' that I can understand, too!
    Aug 31, 2023
    Follow up visit to check Mohs surgery site so nothing in the way of alternatives. Just keep doing what has been recommended
    Aug 31, 2023
    This meeting was a consult, so I don't know if I would recommend the provider until I have The actual surgery
    Aug 23, 2023
    The Doctor is a wonderful communicator and explained each step in treatment and recovery.
    Aug 22, 2023
    I had an excellent visit.I love Dr. Grekin. All of the staff were kind, polite and helpful!
    Aug 21, 2023
    Dr. Grekin & team were amazing - highly recommned!
    Aug 18, 2023
    Dr Greckin was professional and an obvious clinical expert
    Aug 18, 2023
    Courteous, efficient, knowledgeable staff
    Aug 18, 2023
    Dr Gretkin is an EXCELLENT doctor. I feel privileged to be his patient & refer very often refer my loved ones to him
    Aug 11, 2023
    This unit is exemplary and should serve as a model on how to run a department. On days when I have an appointment, I genuinely look forward to seeing the doctors and staff.
    Aug 04, 2023
    He was professional but funny, personal, Informative and very reassuring.
    Aug 04, 2023
    Dr Grekin he Best w Fabulous hands & knowledge
    Aug 03, 2023
    Dr Grekin was great. Upbeat, demonstrative and joyful. That set the tenor of the day. And what made what would be, a neutral to negative experience (as any procedure of this sort belies) a very positive event.
    Jul 29, 2023
    I felt completely "taken care of", team was engaging, Informative and warm, quick and efficient, yet always Impressing as focused on the job.
    Jul 29, 2023
    Dr. Greckin is a model doctor. The highest level of talent, professionalism, effectiveness and ability to communicate with patients, His "bed side manner" is also exceptional. Dr. Greckin's fellow was also excellent.
    Jul 28, 2023
    Love love this practice.
    Jul 27, 2023
    Always treated with utmost care & compassion by Dr. Grekin & his entire staff of interns & nurses
    Jul 21, 2023
    Dr. Grekin and his team were outstanding!
    Jul 20, 2023
    My only complaint is the waiting time between excision of the basis cell and the return from the lab. It was hours and should not have been. Oh, and the exam/procedure rooms are always very cold. (I've been before).
    Jul 19, 2023
    I had an excellent experience at UCSF. I could not have asked for a more professional team and really nice people.
    Jul 19, 2023
    Grekin is Fabulous !!!!
    Jul 09, 2023
    Excellent care and staff
    Jun 29, 2023
    Dr was very good
    Jun 26, 2023
    Excellent and very professional
    Jun 23, 2023
    I have gone to Dr.Grekin for 20 years for MOHS treatments. He has always done an outstanding job and takes pride in his work. I am grateful to have such a skillful and dedicated doctor.
    Jun 15, 2023
    All good
    Jun 15, 2023
    I really felt well cared for and relaxed. I love Dr, Grekin . He was competent, fun and seemed to be well liked by his students. Always a good sign.
    Jun 13, 2023
    Everyone was fabulously caring!
    Jun 07, 2023
    Excellent service
    Jun 06, 2023
    Dr. Grecken is excellent.
    Jun 03, 2023
    Dr. Grekin is one of the very best doctors at UCSF. He pleasant, professional, personable, and the best in his field! I wish all doctors at UCSF were as competent as he is.

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