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International Leader in Bariatric and Laparoscopic Surgery

  • Center of Excellence in
    Metabolic & Bariatric Surgery Dr. Ahmad & Mather Hospital
  • Center of Excellence in
    Robotic SurgeryDr. Ahmad & Mather Hospital
  • Excellence in
    General Surgery

Impeccable Track Record of
Safety & Success

15000 + Bariatric, General, Endoscopic Surgeries

Dr. Ahmad with partners have performed about 10,000 bariatric surgeries in the last 20 years.

Arif Ahmad MD, FRCS, FACS

Master Surgeon in Metabolic and Bariatric Surgery
Master Surgeon in Robotic Surgery

Surgeon of Excellence in Robotic Surgery

Arif Ahmad MD, FRCS, FACS is one of the world's pioneer in robotic bariatric surgery. Dr. Ahmad has been invited internationally to make presentations on robotic surgery at the time of writing, he has the worlds largest experience in robotic bariatric surgery. He specializes in minimally invasive surgery. This cutting-edge surgery is done with small incisions and minimal pain and scarring. This includes all surgical procedures in the abdomen such as surgery of the stomach, esophagus (reflux), gallbladder, colon, spleen, and hernia. He is also trained in utilizing the da Vinci Robot, the most advanced surgical platform in the world.

  • Time "Leader in Weight Loss" by TIME Magazine
  • Pulse Top Surgeons by Pulse Magazine

Dr. Ahmad specializes in the laparoscopic gastric bypass, the lap band and the sleeve gastrectomy. He was the first surgeon in the area to have performed the laparoscopic gastric bypass and the Robotic Assisted gastric bypass. Prior to his arrival in Stony Brook the operation was only being done in the open fashion with big incisions. He was also the first surgeon in Stony Brook to have performed the lap band. Dr. Ahmad has more than 30 years of surgical experience. After completing Medical School and residency, he trained in the UK and obtained the FRCS (England and Edinburgh). He then did an eighteen-month advanced training (fellowship) in Harvard Medical School. This was followed by another five-year residency at the University of Connecticut. He spent a year mastering advanced training in Laparoscopic Surgery (fellowship) at the University of Virginia. He headed the minimally invasive program at Stony Brook University in 2001, where he taught other doctors to perform laparoscopic surgery including laparoscopic bariatric surgery. Currently he is the founder and director of the Bariatric Surgery Center of Excellence at Mather Northwell Hospital as well as the director of Robotic Surgery Center of Excellence at Mather Northwell Hospital. Dr. Ahmad is the Director of the Acid Reflux and Hiatal Hernia Centers of Distinction at St. Charles Hospital and St. Catherine of Siena Hospital.

Dr. Ahmad is renowned in the Long Island area for his impeccable track record of safety and success. He is the author of innovative surgical techniques in the field of laparoscopic bariatric surgery. This includes a new technique to prevent intestinal obstruction and a technique to detect leaks. These have been published in international Journals and have been adopted by surgeons worldwide. Dr. Ahmad has developed and pioneered the Innovative Single Incision Needlescopic lap band and gastric bypass.

Dr. Ahmad is the founder and director of the Bariatric Surgery Center of Excellence at Mather Northwell Hospital, where he currently performs most of his surgeries. He is also the director of the Robotic Surgery Center of Excellence at the Mather Northwell Hospital. He is a member of American Society of Bariatric Surgery, Fellow of American College of Surgeons, and member of Society of American Gastroendoscopic Surgeons.

Dr. Ahmad conducts patient education sessions every two weeks at Mather Hospital in Port Jefferson and in varying locations across Suffolk County. Please call if you wish to register or have other questions.

  • Dr. Ahmad has been Named a “Leader in Weight Loss” by TIME Magazine, and is featured in the October 7th, 2013 edition.
  • Over 14,000 bariatric, general and endoscopic procedures performed
  • Dr. Ahmad is rated one of America’s top surgeons by Pulse magazine and the Consumer Research Council
  • Named one of the top 15 leaders in Bariatric surgery in America by Newsweek magazine
  • Dr. Ahmad has the world's largest experience in robotic surgery (as of June 2024).
  • Dr. Ahmad has an impeccable track record for safety and success with over 30 years experience.
Dr. Arif Ahmad MD, FRCS, FACS
  • Port Jefferson

    625 Belle Terre Road
    Suite 202
    Port Jefferson, NY 11777


  • Commack

    500 Commack Road
    Suite 150 D, Entrance E
    Commack, NY 11725


  • Riverhead

    800 Old Country Rd

    Riverhead, NY 11901