Dr. Kenneth Mark's Online Review Report Card

This doctor is part of the Stonybrook network, which mandates mask wearing in all associated offices. Dr. Mark's office has a prominent sign attesting to the Stonybrook/Southamption "masks required" policy at his front desk. But, as his unmasked receptionist told me, his office doesn't observe the mask mandate. None of the other patients in the waiting area wore masks, although one was coughing. I am in my 70's and a cancer survivor, as Dr. Mark knows, as I have been his patient for several years. I asked the receptionist to tell Dr. Mark that I would like him to wear a mask, but when I saw him, he was unmasked. I asked him to please wear one, saying, "I don't feel safe if you don't wear a mask." He retorted that he "didn't feel safe having me as a patient" if I wanted him to wear a mask. An average of 500 people are dying every day in America from COVID, 85% of them over the age of 65. This doctor cannot be trusted to place the safety and health of his patients first.

Excellent , trusted local dermatologist. Very professional, very experienced. Any patient that used the infamous, but now retired Dr. BERNARD W. BERGER should consider moving over to Dr. Mark's trusted reputation.

Horrid.... I paid $4000 for ultherapy which was a painful procedure to say the list, which not only didn’t work, but increased wrinkles on the left side of my face.....I still can’t believe what happened... never in all CNN my years had such an awful experience...and no one seemed to care at his office... Would never recommend ultherapy to anyone or the physcian

Excellent caring doctor. Removed 4 lesions from head. No problems

Dr. Mark gives me the best advices when it comes to my skin. He listens to what my concerns are and finds effective solutions.

Dr. Mark possesses all the qualities a patient wants. He's knowledgable and professional and truly compassionate. We had confidence in him right away. He explained what was going on and answered all our questions. We were impressed that he called that evening.

I was recommended to Dr. Mark by a friend and now I will only see him. He is extremely thorough and caring and very realistic and honest. I feel very confident that I am doing the best for myself by being his patient and would send my family members to him without a doubt.

Dr Mark has excellent patient care! He is very knowledgeable about Dermatology! Cosmetic procedures look very natural, really knows about anti aging procedures. His skincare line is Amazing ! He is one of a kind!!

I want to warn the public about this doctor! He didn't know how to treat a simple cherry angioma on my 5years old daughter.I was charged $400 for his unsuccessful treatment.I asked how much should I pay until he fixes the problem,burning the benign leason and future unsuccessful treatments? He said,no guarantie but every time he will charge me,no matter the result. I don't think he knows what he's doing,or doesn't want to do the right thing simply to make money. Shame! That's the face of a 5 year old child! I spoke to two unrelated other doctors and both of them said the same thing -surgery will fix the problem.One was a dermatologist and the other facial surgeon. How could one trust such a doctor,not caring about his patients and being dishonest or incompetent? How could one trust dr Kennet Mark with a cancerous leason or more complicated problem? Please,check well other doctors before you go to that Doctor. We ended up with an emergency surgery of the angioma while on our vacation in Italy because of unstopable bleeding.

My skin looks exceptional because of Dr. Kenneth Mark. His talent and skills are unrivaled. Over the years, Dr. Mark has cleared my acne, made my skin look decades younger and smoother through his unbelievable peels, Mixto laser and anti-aging products, and helped resolve a myriad of other everyday skin problems, such as scalp buildup and rashes. Dr. Mark also tested a mole for skin cancer and made me feel incredibly eased at the process and the biopsy he performed was so quick and painless. Dr. Mark’s approach is to thoughtfully listen to the description of my concerns and symptoms, carefully examine the affected area, use his talent from many years of practicing and wisdom from many differentiated medical experiences to diagnose the condition, thoroughly explain how the condition developed and what it is, provide his best recommendation for treatment, and walk through how to most effectively use / apply the proposed treatment. With his calm, attentive and comprehensive manner, it is clear that Dr. Mark has my goals and best treatment as his foremost priority. Dr. Mark’s staff of receptionists, nurses and aestheticians are always a pleasure to interact with. Dr. Mark consistently goes above and beyond my expectations. He's a rare gem in the world of modern medicine and I always leave looking and feeling like a rock star.