Our Team

Expert, Compassionate Cancer Treatment on Long Island

Rajiv V. Datta, MD

Rajiv V. Datta, MD, MBA, FACS, FRCS, FICS
Chair Department of Surgery, Director of the Division of Surgical Oncology and Head and Neck Surgery and Medical Director of the Mount Sinai South Nassau Gertrude & Louis Feil Cancer Center
Professor of Surgery, Icahn School of Medicine at Mount Sinai

Dr. Datta established Mount Sinai South Nassau’s Surgical Oncology Program in 2001. He specializes in gastrointestinal, colorectal, pancreatic and hepatobiliary cancers, endocrine and soft tissue malignancies, and melanoma and head and neck cancers using minimally invasive approaches. He trained at Grant Medical College and Tata Memorial Cancer Center in India, with advanced training in plastic surgery and surgical oncology in the UK, prior to a research fellowship at Memorial Sloan-Kettering Cancer Center. He completed a dual fellowship in surgical oncology and head and neck surgery at Roswell Park Cancer Institute in Buffalo, NY and then served on the faculty of Maimonides Medical Center and Coney Island Hospital.

Practice Location:
Mount Sinai South Nassau
One Healthy Way, Oceanside, NY 11572
(516) 632-3350
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Mount Sinai South Nassau Gertrude & Louis Feil Cancer Center
One South Central Avenue, Valley Stream, NY 11580
(516) 632-3350
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Eric Seitelman, MD

Eric Seitelman, MD, FACS
Surgical Oncologist, Program Director of Surgery

Dr. Seitelman is board certified in General Surgery and fellowship trained in Complex Surgical Oncology at Virginia Commonwealth University. Since 2012 he has been treating patients in Long Island and Queens in a multidisciplinary fashion utilizing our tumor board along with medical oncologists, radiation oncologists, plastic surgeons, pathologists, nurse navigators and radiologists. Dr. Seitelman treats patients with melanoma, carcinoma, other skin cancers, breast cancer, and upper and lower GI malignancies.

Practice Locations:
Mount Sinai South Nassau Gertrude & Louis Feil Cancer Center
One South Central Avenue, Valley Stream, NY 11580
(516) 632-3350
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2209 Merrick Road, Merrick, NY 11520
(516) 632-3350
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Hideo Takahashi, MD

Hideo Takahashi, MD

Dr. Takahashi is board certified in Surgery and specializes in Surgical Oncology. He obtained his medical degree from Kobe University School of Medicine in Kobe, Japan. He completed a General Surgery Residency at Cleveland Clinic in Cleveland, Ohio and a Complex General Surgical Oncology fellowship at Roswell Park Cancer Center in Buffalo, New York. 

Practice Location:
Mount Sinai South Nassau Gertrude & Louis Feil Cancer Center
One South Central Avenue, Valley Stream, NY 11580
(516) 632-3350
Get Directions