Our bariatric surgeons, nutritionists and psychologists are each involved in providing you with ongoing support through your weight loss surgery and beyond, helping you understand the benefits, as well as the changes and challenges, which accompany life after bariatric surgery.

Our Physicians

VIDEO: Dr. Atwa discusses his work and accomplishments in minimally invasive bariatric and general surgery procedures. Click here to watch.

Hesham Atwa, M.D., FACS, FASMBS

Founder & Medical Director, Long Island Laparoscopic Doctorssm

VIDEO: Dr. Atwa discusses his work and accomplishments in minimally invasive bariatric and general surgery procedures. Click here to watch.

Dr. Atwa is a skilled surgeon known for his caring and compassionate bedside manner, garnishing awards as Top Surgeon and the Most Compassionate Doctor awards (2011 – 2017) and recipient of the Theodore Roosevelt award form John T. Mather Hospital in 2018. He is board certified in general surgery with a mini-fellowship in bariatric surgery. He currently is Chief of Surgery and member at large of the medical board at Mather Hospital / Northwell Heath and Director / Chief of Surgery and member of the medical board at St. Charles Hospitals, Port Jefferson, NY.

  • Medical School:

    Ains Shams University School of Medicine, Cairo, Egypt

  • Internship/Residency:

    University of Illinois, Chicago, IL

  • Board Certifications:

    General Surgery

  • Fellowship Training:

    Laparoscopic & Bariatric Surgery - University of Texas and the Cleveland Clinic

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“I enjoy performing bariatric surgery because of the effect it has on our patient lives and the lives of their families.”

Jon Leung, D.O., FACOS

Minimally Invasive & Bariatric Surgeon, Long Island Laparoscopic Doctorssm

“I enjoy performing bariatric surgery because of the effect it has on our patient lives and the lives of their families.”

Dr. Leung, FACOS is a general surgeon with advanced specialty training in minimally invasive surgery as well as bariatric surgery. He focuses on minimally invasive techniques for the treatment of various surgical problems in the abdomen. In addition to performing laparoscopic procedures on the esophagus, stomach, gallbladder, appendix, colon, and abdominal hernias, he also performs weight loss surgeries such as laparoscopic adjustable gastric banding, sleeve gastrectomy and gastric bypass.

  • Medical School:

    New York College of Osteopathic Medicine , New York, NY

  • Internship/Residency:

    St John’s Episcopal Hospital, Far Rockaway, NY

  • Fellowship Training:

    Advanced GI and Minimally- invasive Bariatric Surgery – Staten Island University Hospital, NY

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“My goal as a general & trauma surgeon is to provide the highest level of compassionate and expert surgical care to each and every patient. I am dedicated to helping patients every step of the way by fully understanding their ailments and the best treatments options available for them.”

James L. Groff D.O.

General & Trauma Surgeon, Long Island Laparoscopic Doctorssm

“My goal as a general & trauma surgeon is to provide the highest level of compassionate and expert surgical care to each and every patient. I am dedicated to helping patients every step of the way by fully understanding their ailments and the best treatments options available for them.”

Dr. Groff, D.O is a general surgeon with advanced specialty training in trauma. Critical and acute care surgery. He is the newest member of Long Island Laparoscopic surgical team and focuses on minimally invasive techniques for the treatment of various surgical problems. Dr. Groff utilizes laparoscopic surgery techniques that create small incisions with minimal pain and scarring. He performs surgical procedures of the abdomen such as surgery of the stomach, esophagus (reflux), gallbladder, colon, spleen, and hernia repair. He also has a special interest in the field of trauma and acute care surgery.

  • Medical School:

    Lake Erie College of Osteopathic Medicine

  • Internship/Residency:

    Stony Brook Medicine at South Hampton Hospital

  • Fellowship Training:

    Stony Brook Medicine at South Hampton Hospital, Peconic Bay Medical Center

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Our Staff

leslie

Leslie Welsch, MS, RD, CDE, CDN

Dietitian-Nutritionalist, Long Island Laparoscopic Doctorssm

leslie

Leslie is a Registered Dietitian, Certified Diabetes Educator, and Certified Dietitian-Nutritionist. Leslie received her Bachelor of Science in Dietetics from The University of Delaware. She received her Master of Science in Medical Biology Nutrition from Long Island University, CW Post where she earned the Outstanding Nutrition Award for her thesis work on Diabetes. Leslie began her career in the hospital setting, but quickly began working for various physicians on Long Island counseling their patients privately.

  • Medical School:

    Delaware University

  • Board Certifications:

    Diabetes Educator, Dietitian-Nutritionist

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Maud Colas, BS, CPN

Bariatric  Coordinator, Long Island Laparoscopic Doctorssm

Maude Colas is our Bariatric Coordinator. She has over 18 years’ experience in healthcare management focusing on healthcare administration, patient navigation & advocacy.  Maud has proven track record of supporting and resolving patient health challenges with solutions that lead to achieving better health.  Maud has joined Long Island Laparoscopic Doctorssm where her focus  is on educating patients on pre-and post-operative needs, diet and control of other conditions such as hypertension, diabetes, and heart disease.

Maud plays an important role in helping our patients succeed long after surgery is finished and your new life begins. Maud has deep connections with her patients that allows her to understand in a special way their needs, fears, hopes and frustrations. She has a knack for restoring confidence and self-esteem in those who need it most.

Credentials At-a-Glance:

  • Education:

    Bachelor of Science, Health Counseling, Iona College

  • Certifications:

    Patient Navigation Certification, Phlebotomy

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Joan Vitulli

Patient Reception

We are dedicated to providing you caring, compassionate care. We believe that one of the biggest differences between Long Island Laparoscopic Doctorssm and other medical offices that you may choose to consider is our staff. They are trained and dedicated to being Accessible, Knowledgeable, Compassionate and Responsive.

Listen to the experiences of our past patients. From scheduling convenient appointments, to answering questions about health insurance you will find that the office staff really does makes a difference

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