Your Health and Safety is our Priority. Learn more about our COVID-19 Safety Protocols

Book an In-Office or Virtual Appointment

John F. Gallagher

John F. Gallagher

John F. Gallagher,MD, FACS, RVT, RPVI

Book an Appointment 888-747-5273

Dr. John F. Gallagher runs Long Island’s premier clinic for vein treatment services and helps patients deal with varicose veins, spider veins, and various other vein issues. As part of Advanced Dermatology’s growing capabilities, Dr. Gallagher’s revolutionary techniques can help relieve discomfort, improve appearance, and enhance your venous health. For over 30 years, Dr. John F. Gallagher has been practicing General and Vascular Surgery, including patient care, resident training and clinical research. He is a Board Certified General and Vascular Surgeon, as well as past President of the Eastern Long Island Chapter of the American College of Surgeons. For over 15 years, he served as the Director of Surgery at Southside Hospital in Bay Shore. Dr. Gallagher has narrowed down his concentration over the past few years to the treatment of all kinds of venous disease. He now conducts seminars and on-site training for physicians interested in venous disease, along with a clinical study comparing the efficiency of laser and sclerotherapy for the treatment of spider veins. He focuses strongly on both the cosmetic benefits of vein treatment, as well as the therapeutic benefits.

Medical School
University of Chicago, Pritzker School of Medicine
New York Hospital, Cornell University Medical Center, General Surgery
Newark Beth Israel Medical Center, Vascular Surgery
American Board of Surgery
American College of Surgeons
American Board of Surgery
Society Membership
  • American College of Phlebology
  • American College of Surgery
  • American Medical Association
  • American Venous Forum
  • Society of Vascular Sugery
  • Suffolk County Medical Society

Karen D.

Dr. John Gallagher performed surgery to remove varicose veins from my left leg. The procedure was absolutely painless, recuperation was quick and my leg now feels and looks wonderful.

Lisa G.

I asked myself, why did I wait so long to improve my quality of life? Not only did Dr. Gallagher remove ugly varicose veins, but he removed the daily pain from my life as I am on my feet all day. Both Dr. Gallagher and Kim treated me with the utmost respect and care. I can’t wait to have the procedure on the other leg done.


Dr. Gallagher instills confidence and trust the minute you meet him. You are in the best hands with him and his wonderful staff (who are very patient, caring, and willing to answer any questions). It is obvious that everyone here is committed to the patients having a positive experience. I am a woman who cares about my health and appearance and I feel very fortunate to have found Dr. Gallagher.

R. Pesci

Having lived with disfiguring varicose veins for many years, I was fortunate in locating Dr. John Gallagher, a board-certified expert in this field. Dr. Gallagher uses the latest techniques in vein surgery. As a result, there is no scarring and no pain! With a minimum of downtime, I was free of my leg problems. In addition, and perhaps most importantly, Dr. Gallagher is an extremely talented, caring, and attentive physician. I highly recommend him to anyone in need of this procedure.


I just wanted to thank you, Dr. Gallagher, and Staff. I was very reluctant to have surgery for my varicose veins, but you all made it so easy for me! The care that was given to me from start to finish made this a very good experience. What a difference your non-surgical minimally invasive and painless procedure made of my life! I was able to be back at my job the very next day! Pain free!!! I can’t thank you enough for the care you gave me I would recommend you to anyone that has varicose vein issues.

John F. Gallagher's Offices

Nassau County Suffolk County

We Pride ourselves
on Patient Accessibility

With 50+ locations conveniently located throughout New York City and New Jersey, a top-rated dermatologist is just around the corner. Click below to find the office nearest you!


logo State-of-the-Art Lasers and Devices
State-of-the-Art Lasers and Devices
logo Emergency Appointments Available
Emergency Appointments Available
logo Highly Trained Providers
Highly Trained Providers
logo Multi-specialty office locations for patients’ convenience
Multi-specialty office locations for patients’ convenience