• More than 4500 Bariatric Cases including;
    More than 1550 Sleeves, 1500 Bypass Surgeries,
    600 Robotic-Assisted Bypass Surgeries.
  • Dr. Arif Ahmad Has Been Awarded the
    "Patients' Choice Award" and "Compassionate
    Doctor Award" by Vitals for Five Consecutive
  • Dr. Ahmad rated one of America’s top
    surgeons by the
    Consumer Research Council
  • Renew Yourself Today!
  • Recognized as a "Center of Excellence
    in Metabolic and Bariatric Surgery"
    Awarded by the Surgical Review
    Corporation continuously since 2007
  • The Most Experienced Fellowship-Trained
    Bariatric Surgeon on Long Island
  • Largest number of Sleeves and Bypasses
    in Suffolk County. Largest number of
    Bariatric Surgeries in Long Island in
  • Welcome to one of the top Bariatric
    practices on Long Island
  • Over 10,000 surgical and endoscopic
    procedures performed
  • Impeccable track record with
    over 30 years of experience
  • One of the Top Records for long term
    weight loss with high quality care and
    compassionate staff
  • “Dr. Ahmad routinely utilizes the daVinci
    Surgical System, the most advanced
    surgical platform in the world, to perform
    minimally invasive gastric bypass surgery”
  • Listen to how Richard got his life back
    & how Dr. Ahmad changes lives...
  • Dr. Ahmad was one of the first surgeons in
    Suffolk County to perform the
    gastric bypass laparoscopically
  • On the cutting edge of the newest
    procedures in weight loss surgery.
  • Newsweek acknowledges
    Dr. Ahmad as a leader in
    Bariatric Surgery
  • Ask about the single incision Laparoscopic
    (virtually scarless) option for bypass,
    bands and sleeves
  • Dr. Ahmad has performed over 400
    Robotic Assisted Gastric Bypasses
    utilizing the daVinci Surgical System
  • ORBERA Intragastric Balloon, a non-surgical
    approach at weight loss.

Free Information Seminar

Tuesday, November 28, 6:30 PM
Mather Hospital
Conference Room B
Can't attend the next seminar? Do it online.


Next In-Person Bariatric Seminar Date

Next Bariatric Seminar Date:

Tuesday, November 28, 6:30 PM
Mather Hospital
Conference Room B
Call: 631-689-0220 to Register!
Register for this seminar

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Register for Seminar

Port Jefferson Bariatric Seminar Events are held in the LIAP Conference Center, located in the Arthur & Linda Calace Foundation Pavilion*. Please enter through the Cody Ambulatory Pavilion, 625 Belle Terre Road, Port Jefferson, NY 11777.

*This is not the main entrance of the Hospital. Valet parking is available.

Riverhead Bariatric seminars are hosted at Holiday Inn Express on Old Country Road.

Upcoming Seminar Dates



  • Tuesday, November 28, 6:30 PM
    Mather Hospital, Conference Room B


  • Saturday, December 2, 10 AM
    Mather Hospital, Conference Room B
  • Tuesday, December 12, 6:30 PM
    Mather Hospital, Conference Room B
  • Wednesday, December 20, 7 PM
    Mather Hospital, Conference Room B

Support Group Schedule

Unless otherwise noted, all meetings are held at Mather Hospital, First Floor;
Tuesdays in Conference Rooms 3, 4 & 5 and Wednesdays in Conference Room 3.
Groups marked with an asterisk (*) are Post-Op only sessions, open to any of our patients who have had surgery.

2017 Schedule


2nd Tuesday (Open to All)

6:30 PM

Mather Hospital

Conference Rm. 3, 4, 5

3rd Wednesday (Open to All)

10:00 AM

Mather Hospital

Conference Rm. 3

4th Tuesday (Post-Op Only)

6:30 PM

Mather Hospital

Conference Rm. 3, 4, 5