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Lenox Hill Hospital appoints new vice chair of surgery


Joseph E. Martz, MD has been named vice chair of the department of surgery and chief of colon and rectal surgery at Lenox Hill Hospital, as well as director of colon and rectal surgery for Northwell Health's Western Region, which includes all health system facilities in Brooklyn, Manhattan, Staten Island and Westchester County. He was also appointed associate professor of surgery at Northwell's Zucker School of Medicine at Hofstra. In his new role at Lenox Hill, Dr. Martz will assist in overseeing the surgical service for the hospital, which offers a full range of specialties, including bariatric, breast, colorectal, hepatobiliary & pancreatic, neurologic, plastic & reconstructive, urologic and vascular surgery. He will also lead the oncologic colorectal surgery program.

Dr. Martz, who is board certified in general and colorectal surgery, returns to Lenox Hill after 15 years at Mount Sinai Beth Israel Medical Center where he served as chief of colon and rectal surgery since 2005. In 2016, he was appointed chief of colon and rectal cancer surgery for the Mount Sinai Health System. While at Mount Sinai, Dr. Martz was a member of several professional committees. He served as co-director of the Gastroenterology Oncology Tumor Board and was an active member of the surgical and perioperative quality improvement committees, as well as the information technology committee. During this time, he was also honored with the Murry G. Fischer Distinguished Educator Award and the Leon Ginsburg Award for Surgical Excellence.

Dr. Martz is actively engaged in clinical research involving the natural history of colon and rectal cancer treatment, minimally invasive rectal cancer surgery, robotic surgery, surgical outcomes, enhanced surgical safety, natural history and management of hereditary colon cancer, as well as natural history and management of anal dysplasia. He has published more than a dozen peer reviewed original articles and co-authored five books and book chapters on topics such as rectal cancer, pilonidal disease and the benefits of laparoscopic surgery. Dr. Martz has been invited to lecture and present at various prestigious forums, including the Society of Surgical Oncology, the American College of Surgeons and the American Society of Colon and Rectal Surgeons.

After earning an undergraduate degree in biology from Queens College, Dr. Martz earned his medical degree from the New York University School of Medicine. He completed his residency in general surgery at Mount Sinai Beth Israel Medical Center and his fellowship in colon and rectal surgery at Lahey Clinic Hospital & Medical Center in Boston. He began his career at the Albert Einstein Medical School as a clinical instructor of surgery. After a year, he moved on to the position of clinical associate of surgery at the Tufts University School of Medicine in Boston while pursuing his fellowship. Subsequently, Dr. Martz came to Lenox Hill where he was an attending physician from 2001 to 2003.

To make an appointment with Dr. Martz, please call 212-434-4350.

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About Lenox Hill Hospital
Lenox Hill Hospital, a member of Northwell Health, is a 652-bed, fully accredited, acute care hospital located on Manhattan's Upper East Side with a national reputation for outstanding patient care and innovative medical and surgical treatments. US News & World Report has ranked the hospital among the nation's top 50 in Cardiology and Heart Surgery and among the top 10 hospitals in the state of New York with a total of 11 "high performing" designations for its clinical performance in Cancer, Diabetes & Endocrinology, Ear, Nose & Throat, Gastroenterology & GI Surgery, Geriatrics, Gynecology, Nephrology, Neurology & Neurosurgery, Orthopedics, Pulmonology and Urology. For more information, go to

About Northwell Health
Northwell Health is New York State's largest health care provider and private employer, with 23 hospitals, 665 outpatient facilities and more than 18,500 affiliated physicians. We care for over two million people annually in the New York metro area and beyond, thanks to philanthropic support from our communities. Our 66,000 employees – 16,000-plus nurses and 4,000 employed doctors, including members of Northwell Health Physician Partners – are working to change health care for the better. We're making breakthroughs in medicine at the Feinstein Institute for Medical Research. We're training the next generation of medical professionals at the visionary Donald and Barbara Zucker School of Medicine at Hofstra/Northwell and the Hofstra Northwell School of Graduate Nursing and Physician Assistant Studies. For information on our more than 100 medical specialties, visit

Margarita Oksenkrug
[email protected]

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