Our Staff

All professionals at Long Island Gastroenterology, Hepatology & Therapeutic Endoscopy Associates maintain the highest levels of accreditation and pursue ongoing education to stay abreast of the latest trends in the medical field. Read on to learn more about our staff's experience and training.

Dr. Rajiv Bansal


Dr. Rajiv Bansal

Dr. Rajiv Bansal is a Board-Certified Gastroenterologist who has been practicing in Long Island since 1996. He obtained his medical degree from Brown University Medical School in 1989. He completed his Internal Medicine Residency from Duke University Medical Center in 1992, and Gastroenterology Fellowship from the University of Michigan Medical Center in 1995.

He was hired by North Shore University Hospital in 1996 to initiate the Endoscopic Ultrasound Program for GI cancer staging and was the first Gastroenterologist in Long Island to perform this examination. He is recognized as an expert in the use of endoscopic ultrasound, diagnosing and staging of GI malignancies, endoscopic resection (EMR) of early esophageal cancer, gastric cancer, and large colon polyps, radiofrequency ablation (RFA) for Barrett’s esophagus, biliary and pancreatic endoscopy (ERCP), pancreas pseudocyst drainage, pancreas necrosectomy, fiducial placement, and luminal stent placement. In addition, he is highly proficient in all standard endoscopic procedures including upper endoscopy, colonoscopy, and wireless capsule endoscopy (Pill Cam). He has skillfully performed over 30,000 procedures, and has become the referral physician for complex and therapeutic endoscopic procedures from his colleagues.

He has authored numerous publications in peer-review journals, and has been invited to speak in both national and local meetings, including hospital-based Medical and Surgical Grand Rounds. For patients with complex medical conditions, he works closely with other specialists such as surgeons, oncologists, and radiologists, using a team approach to ensure that his patients receive paramount medical care. As Dr. Bansal continues as a privately owned practice, it enables him to collaborate with the most talented physicians in all hospitals throughout Long Island and Manhattan.

He has two offices conveniently located in New Hyde Park and Syosset, both of which have AAAA accredited Office Based Endoscopy Centers for routine upper endoscopy and colonoscopy. He performs more complex procedures at North Shore University Hospital in Manhasset and St. Francis Hospital in Roslyn.


Avigayil Neuburger

Physician Assistant


Avigayil Neuburger has been a nationally certified Physician Assistant since 2011. She completed her Bachelor's degree in Biology in Queens College in 2009, graduating as a Presidential Scholar and as part of the Golden Key International Honor Society. She trained as a Physician Assistant in Touro College, graduating magna cum laude and as a member of the Phi Alpha National Honors Society in 2011. She began her career as a Physician Assistant in Montefiore Medical Center where she provided perioperative care to patients undergoing cardiothoracic surgery including ventricular assist device placement and heart transplantation. She joined LIGHTe Associates in 2015 where she has been providing comprehensive and compassionate care for patients both in the office and hospital setting. She holds privileges at North Shore University Hospital and St. Francis Hospital.






Ayelet Mottahedeh

Physician Assistant

Ayelet Mottahedeh is a nationally certified Physician Assistant who works at Long Island Gastroenterology, Hepatology & Therapeutic Endoscopy Associates, and specializes in Gastroenterology. Ayelet is passionate about delivering the best care and treatments available to her patients. Ayelet has experience in both hospital based cardiology and outpatient gastroenterology prior to joining LIGHTe Associates. She received both her Masters and Bachelor of Science in Physician Assistant Studies at the Touro College School of Health Science, where she received an award for Outstanding Academic Achievement as well as inducted into the Pi Alpha National Honor Society for Physician Assistants. Ayelet attended CUNY Queens College as a Queens College Scholar, and graduated Summa Cum Laude with a Bachelor of Arts in Psychology and Biology. There she was awarded the Presidential Honors Achievement Award and was a member of Phi Beta Kappa and the Golden Key International Honor Society. Outside the office Ayelet is a busy wife and mother to three wonderful daughters. She is an active member of her children’s School Board, volunteers her time to organize charity events, and embarks on business ventures with her husband. Ayelet enjoys cooking, baking, and spending time with family and friends.