Book an Appointment
Qualifications and Experience
Dr. Gary Hahn is a board-certified dermatologist who has been practicing dermatology for over 20 years. Dr. Hahn specializes in both medical and cosmetic dermatology treatments. Dr. Hahn is based in our Commack office location on Long Island’s South Shore, where he has been treating dermatology patients for two decades. Dr. Hahn has served as a staff dermatologist at the Veterans Administration Hospital in Northport, New York. Dr. Hahn completed his dermatology residency at State University of New York at Buffalo.
Verified Patient Reviews
Very smooth, professional, informative and helpful. I was completely satisfied with Dr. Hahn, as I always am.
I've been seeing Dr. Hahn for more than 25 years. He is a wonderful doctor with a warm and caring bedside manner. He takes the time to explain things in a professional and easy to understand way. Dr. Hahn is one of the best doctors I've ever had. I heartily recommend him to everyone.
Reviewed the results of a biopsie. It was a visit scheduled several weeks ago after a growth was removed from my back by Dr Hahn. Well explained!
Dr.Hahn was, as always, in great humor. He was kind and sensitive. Linda, his assistant wasvwonderful as well. Great first visit to this office.
Dr. Hahn explained all my questions. Took his time to listen to me and put my mind at ease . He is a kind human being , very professional , very caring and very ease going. His whole office staff is friendly and helpful as well. Great staff, great service and a very clean office ! I recommend Dr. Hahn and the office highly !
Always feel good after seeing Dr. Hahn
I have been going to Dr. Hahn and Dr. Fern for 20+ years. I feel that Dr. Hahn listens to what it is that is bothering me and diagnoses and treats accordingly. He also does not rush me through an appointment. I like that he is following up with me to make sure the course of treatment was correct!
Didn't get a definitive diagnosis. Left with a prescription that may or may not help.
Dr.Hahn was patient and answered all of my questions and concerns with professionalism. The staff was very friendly and competent.
Dr Hahn is extremely knowledgeable, listens to his clients and goes about his business very professionally. I would recommend him to anyone.
The doctor is very sick and should not be practicing.
Dr. Hahn is a true professional only offering a procedure when necessary. He looks out for your well being, and does not just look to do unnecessary procedures to line his pockets. He always conducts himself as a professional
I don't think he did a thorough examination.
Answered all my questions. Very important for me. Thanks
Very prompt and professional, I would recommend
No wait in and out quickly and treated me for what I needed.
Doctor Hahn was very efficient and took good care of my daughters skin concerns.
Excellent doctor -Cut off skin lesion -completely painless --doctor has a great touch !!!would recommend to anyone !!!
Very nice doctor!
He was very good and I will go back to him
Was a nice guy when I met him and somewhat helpful. He did not however allow refills to my prescriptions not matter how much he was contacted by me, the insurance company or the pharmacy. Will not be going back because of the lack of care for his patients after the appointment. Unreliable to contact, which is a horrible trait for any kind of doctor.
The visit was very quick. i felt like the Dr, didnt wanna talk to me or answer my questions. looking for a different -> better Doctor.
Never called me back to have a procedure done.
Dr. Seemed to care about my concerns. Felt very comfortable with him and his staff