The Mount Sinai Health System has appointed four new hospital presidents to lead Mount Sinai Beth Israel, Mount Sinai Beth Israel Brooklyn, Mount Sinai Roosevelt, and Mount Sinai St. Luke’s.

Evan L. Flatow, MD, a world-renowned leader in shoulder surgery who has made many clinical, educational, and research contributions to the care of shoulder disorders, will assume the position of President of Mount Sinai Roosevelt after March 1.

Previously, Dr. Flatow served as the Bernard J. Lasker Professor and Chair of the Leni and Peter W. May Department of Orthopaedic Surgery at Icahn School of Medicine at Mount Sinai, and as Director of the Orthopaedic Surgery Service at The Mount Sinai Hospital.

During his more than 30-year career as a surgeon, Dr. Flatow has trained numerous shoulder fellows and residents. He was part of a team that helped develop a comprehensive shoulder-replacement system that is widely used by shoulder surgeons around the world. In addition, Dr. Flatow established a tendon basic science research group at Mount Sinai, serving as principal investigator on a National Institutes of Health R01 grant based on a new animal model of tendon damage.

“It is an honor for me to lead this superb institution, staffed with the best doctors, nurses, and allied medical staff anywhere,” says Dr. Flatow. “I did my surgical internship at Mount Sinai Roosevelt and am thrilled to have returned to this leading member of the Mount Sinai Health System.”

After receiving his medical degree from Columbia University College of Physicians and Surgeons, Dr. Flatow completed a surgical residency at Roosevelt Hospital, and an orthopaedic residency and a year of shoulder fellowship under the direction of the late Charles S. Neer II, MD, at Columbia University Medical Center.

Arthur A. Gianelli, an executive with extensive experience in health care delivery and finance, has taken the helm as President of Mount Sinai St. Luke’s.

From 2006 through 2013, Mr. Gianelli served as President and Chief Executive Officer of NuHealth, a public health care system that provides high-quality care to residents of Nassau County, New York, including some of the area’s most vulnerable populations. Under his leadership, NuHealth earned national accolades for stabilizing finances, improving care quality and patient outcomes, and soundly investing more than $200 million to modernize and expand services and facilities.

Prior to this, Mr. Gianelli was Deputy County Executive for Budget and Finance for Nassau County, and Director of Operations for North Hempstead, Long Island.

“St. Luke’s has a rich and important history with wonderful physicians, nurses, and staff,” says Mr. Gianelli. “As a member of the Mount Sinai Health System, I look forward to galvanizing the St. Luke’s team behind the exceptional vision articulated by Dr. Davis [the Health System’s CEO], and working with the staff to transform St. Luke’s into a financially stable, high-quality, modernized facility with programs that meet current and emerging health care needs of the surrounding community.”

Lin H. Mo, a veteran health care executive with close ties to Brooklyn’s diverse communities, has joined the Mount Sinai Health System as President of Mount Sinai Beth Israel Brooklyn.

Prior to his position at Mount Sinai, Mr. Mo served as President and CEO of New York Community Hospital, a Brooklyn-based member of the New York-Presbyterian Healthcare System. Over the course of his decades-long career, Mr. Mo has held progressively responsible positions at the New York Health Systems Agency, Bellevue Hospital Center, Westchester Medical Center, New York Downtown Hospital, and Sanus Health Corporation.

“It is an honor and a privilege to be asked to manage Mount Sinai Beth Israel Brooklyn, which is a critically important and valuable resource, particularly given the rapidly changing health care market in Brooklyn,” says Mr. Mo. “The hospital’s roots remain deeply embedded in a long history of service to the Orthodox Jewish community. The union of Mount Sinai and Beth Israel strengthens that commitment. At the same time, the neighborhoods we serve are becoming home to additional ethnic groups and we are meeting their needs, as well.”

Susan Somerville, RN, a former cardiac and critical care nurse with extensive experience in hospital operations, has been named President of Mount Sinai Beth Israel.

Ms. Somerville joins the Mount Sinai Health System from North Shore University Hospital, where she served as Executive Director, overseeing the daily operations of an 804-bed facility with 3,000 physicians and 5,300 employees working within 16 clinical service lines. She directed and managed a $1.2 billion budget, and led the strategy on a number of large-scale construction projects aimed at providing excellent tertiary care.

“I am delighted to be joining Mount Sinai Beth Israel, a hospital that has a long and rich history of caring for its community,” says Ms. Somerville. “This is an exciting time to come on board, as Beth Israel becomes part of the Mount Sinai Health System. Together, our physicians and staff will provide the highest quality of care to our patients.”

In her earlier roles at the North Shore-LIJ Health System, Ms. Somerville served as Vice President of Cardiovascular Services and Director of Cardiac Patient Care Services, and Administrative Director of the Division of Pediatric and Adult Cardiology.

Harris M. Nagler, MD, the former President of Mount Sinai Beth Israel, has accepted a newly created position within the Mount Sinai Health System as Physician-in-Chief and Chief Medical Officer for Mount Sinai Beth Israel in Manhattan.