Our Team

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.

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LILD Doctors Group Shot

Dr Hesham Atwa

Hesham Atwa, M.D., FACS, FASMBS, DABS-FPMBS

Founder & Medical Director, Long Island Laparoscopic Doctorssm

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Dr Jon Leung

Jon Leung, D.O., FACOS

Minimally Invasive & Bariatric Surgeon

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Dr Ghaith Khair

Ghaith Khair, M.D.

Minimally Invasive & Bariatric Surgeon

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Dr Nicholas Craig

Nicholas P. Craig, M.D., FACS

Minimally Invasive Laparoscopic General Surgeon

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Dr. Eileen Barr

Eileen M. Barr, D.O.

Obesity Medicine Physician

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Medical assistant Toniann Balistreri

Toniann Balistreri, CCMA

Bariatric Coordinator

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Leslie Welsch

Leslie Welsch, MS, RD, CDE, CDN

Dietitian-Nutritionalist

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Joan Vitulli

Joan Vitulli

Bariatric Liaison

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The doctors at Long Island Laparoscopic Doctors have either authored or reviewed and approved this content.

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