Joseph V. Morrissey is stepping down as president of Beth Israel Deaconess Hospital-Milton, effective Dec. 31, the hospital’s board of directors said Wednesday.

Morrissey will be succeeded on an interim basis by Doris Sinkevich, who currently serves as the hospital’s chief operating officer and chief nursing officer, while a committee appointed by the board conducts a search for a successor.

Beth Israel Deaconess Hospital-Milton, or BID-Milton, is an 81-bed community hospital.

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In a statement, chairman Michael Brady said: “Mr. Morrissey has been an excellent steward of BID-Milton during his tenure as president, skillfully guiding us through our affiliation in a way that allowed us to continue to keep our autonomy and focus on providing excellent care in our community. With this transition complete, BID-Milton has entered a new phase of operations, which we both agree requires a different kind of leadership.”