To contact our bariatric or LAP-BAND® System surgeons serving the Long Island, New York, New Jersey, and Connecticut area, fill out the form below. Dr. Alan Geiss and Dr. Colin Powers have helped numerous patients achieve their weight loss and health goals.
Laparoscopy Bariatric Center
at Syosset Hospital, the Center for Surgical Specialties, part of the North Shore-LIJ Health System.
221 Jericho Turnpike
Syosset, NY 11791
(516) 714-5431
Meet Our Team of Bariatric / LAP-BAND® System Surgeons on Long Island, New York
At The Laparoscopy Bariatric Center, our bariatric and LAP-BAND® System surgeons are highly trained in laparoscopic methods used to achieve significant weight loss in morbidly obese patients. Dr. Alan Geiss and Dr. Colin Power s specialize in bariatric surgery, including the LAP-BAND® Adjustable Gastric Band technique, and other laparoscopic treatments to help patients lose a substantial amount of weight while maintaining a healthy lifestyle. Read more about our qualified bariatric surgeons, below.
For additional information about weight loss surgery, the LAP-BAND® System, or to schedule a consultation with our bariatric surgeons, contact our Long Island, New York facility, serving patients throughout New Jersey, Connecticut, New York, and surrounding areas.
Alan Geiss, M.D., F.A.C.S.
As one of the premier bariatric surgeons in the New York and Tri-State Area and the Director of The Laparoscopy Bariatric Center, Dr. Alan Geiss has performed over 1,800 surgeries involving the LAP-BAND® System. His extensive experience with laparoscopic surgery and techniques such as the LAP-BAND® System have made Dr. Geiss and our center a top choice for patients seeking weight loss surgery.
Dr. Alan Geiss was born in New York, New York. He graduated with his Bachelor of Arts degree from Alfred University and continued his education at Chicago Medical School, where he received his Doctor of Medicine degree in 1970.
Dr. Geiss is board certified by the American Board of Surgery. He did his surgical training at the Albert Einstein Medical Center and the prestigious Cleveland Clinic Foundation. He furthered his surgical prowess by completing numerous specialized bariatric surgical training courses at various world centers both in the United States and abroad.
Dr. Geiss is the Director of the Laparoscopic Bariatric Center
at Syosset Hospital, the Center for Surgical Specialties, part of the North Shore-LIJ Health System. His practice specializes in Laparoscopic Bariatric surgical placement of the Laparoscopic Adjustable Gastric Band. He has the largest Laparoscopic Bariatric surgical practice within the North Shore-LIJ Health System and on all of Long Island and one of the largest practices in the country.
Dr.Geiss is a member of numerous medical and surgical societies including the Fellows of the American College of Surgeons, the New York Medical Society, the Surgical Society of Alimentary Tract Surgeons, the Society for Metabolic and Bariatric Surgery, the Society for American Gastroendoscopic Surgery, and the Society for Laparoendoscopic Surgery. He is published in numerous scientific peer reviewed surgical journals including the Annals of Surgery, Surgery for Obesity and Related Diseases, Obesity Surgery and Surgical Endoscopy. Dr. Geiss has also presented his work at many national surgical meetings.
Dr. Geiss’s care is focused on the individual patient and his/her particular needs. All patients are encouraged to utilize the accessibility to all professionals within his practice without hesitation. Maintaining this personalized attention is paramount to obtaining optimal success for his patients.
Optimal success for the patient is paramount to Dr. Geiss. This success is maintained by the personalized attention by his staff coupled with his extensive and dedicated surgical experience.
Dr. Geiss is licensed by the American Board of Surgery and has received certification in the LAP-BAND® System procedure.
To schedule a consultation with our LAP-BAND® System surgeons serving Long Island, New York and the Tri-State Area, please contact our practice.
Colin Powers, M.D., F.A.C.S.
Dr. Colin Powers , one of the distinguished bariatric surgeons at our Long Island, New York facility, maintains a practice focused on minimally-invasive abdominal surgery. This includes the LAP-BAND® System for weight loss.
As an attending surgeon at The Laparoscopy Bariatric Center, Dr. Powers is an active member of the bariatric staff and committees pertaining to bariatric surgery for the North Shore-LIJ Health System. He also has a practice that is directed to individual and personalized care for all his patients. He works closely with our other LAP-BAND® System surgeon, Dr. Alan Geiss, to advance the largest and most experienced LAP-BAND® System program on Long Island.
Dr. Powers is originally from Western New York, and attended the State University of New York at Buffalo School of Medicine and Biomedical Sciences. He completed a general surgery residency program as the Chief Resident in 2003, then went on to complete a laparoscopic fellowship, established by Dr. Geiss, within the North Shore-LIJ Health System.
Dr. Powers has been published in numerous journals, including Surgery for Obesity and Related Diseases, Surgical Endoscopy, and Obesity Surgery.
Dr. Powers is a Fellow of the American College of Surgeons and a diplomat of the American Board of Surgery. His other professional memberships include the American Society of Bariatric Surgery (ASBS), the Society of American Gastrointestinal Endoscopic Surgeons (SAGES), and the Society of Laparoendoscopic Surgeons (SLS).
Yohannis Mahtemework, M.D.
An advanced laparoscopic surgical fellowship program has been in existence at Syosset Hospital for several years. It is under the direction of A. Geiss, M.D., Director of Bariatric Surgery.
A surgical fellow is a physician, fully trained in general surgery, who seeks an additional year of training to master complex surgical skills.
Our 2007-2008 select surgical fellow is Yohannis Mahtemework, M.D. Dr. Mahtemework is a graduate of the University of Maryland and the New York College of Osteopathic Medicine. Dr. Mahtemework pursued his general surgical residency from 2001 – 2006, at St. John’s Episcopal Hospital in New York. He joined the team at Syosset Hospital in July, 2007.