NEWS RELEASE: Jack DiTeodoro, MD Named as the New Medical Director of The Nathaniel Witherell

Dr. Francis X. Walsh to continue as an attending physician

“We continue to provide the top-quality medical care the Witherell is renowned for.”

John Mastronardi, Executive Director of The Nathaniel Witherell, announced today the appointment of Jack DiTeodoro, MD as Medical Director of The Nathaniel Witherell.  Dr. DiTeodoro, a Board-Certified Family Practitioner, assumed the role of Nathaniel Witherell’s Medical Director on February 5, 2024. He replaces Dr. Francis X. Walsh, a beloved member of the Witherell’s medical staff for 50 years and its Medical Director since 2008, who will continue as an attending physician.

Besides conducting a successful private practice in Stamford, Dr. DiTeodoro is a teaching attending at Stamford Hospital in their Family Practice Residency Program where he also worked as a hospitalist during the first coronavirus surge. Dr. DiTeodoro earned a B.S. from St. John’s University and his medical degree from the Medical School at the American University of the Caribbean. He completed his residency at Mt. Sinai Medical Center and St. Joseph Medical Center.

“We are very happy to welcome to our team Dr. DiTeodoro, who has over 35 years of experience specializing in family medicine, adult health and gerontology. He will be an outstanding asset to our fine medical staff which provides the skilled nursing care that residents and short-term rehab patients require and continues the top-quality medical care the Witherell is renowned for.”

Mastronardi explained that the Medical Director’s role is essential in liaising with clinical staff, Nursing and Administration to ensure the highest quality care, thereby lowering hospital readmission rates and guiding the clinical and nursing staff to achieve the highest practicable health outcomes for our residents.

“To date, we’ve been most fortunate to have been able to work with Dr. Walsh, a well-respected member of the local community, who has enjoyed one of the busiest practices in nephrology and internal medicine in Greenwich,” Mastronardi continued. “His training, teaching and work all complement his strong commitment to his patients and all those he cared for at the Witherell.  We’re very pleased that he’ll be staying on to work with Dr. DiTeodoro, caring for our long-term residents – many of whom have known and relied on him for years.”

Dr. DiTeodoro commented: “I am looking forward to working with the outstanding staff at The Nathaniel Witherell to provide excellent care to all those we serve.”

About The Nathaniel Witherell

Nathaniel Witherell is a short-term rehabilitation and skilled nursing center of care, located on 24 acres just two miles from downtown Greenwich, Connecticut. The Witherell is committed to person-centered care provided by a compassionate and experienced staff. Short-term rehabilitation and sub-acute post-hospitalization are offered daily. The nonprofit is owned and operated by the Town of Greenwich and has been serving the community for over 118 years, reflecting the community’s collective commitment to provide for the Town’s elderly when home care is no longer an option. To learn more about the Witherell, visit us online at or call 203-618-4200.

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