HEALTH CARE

Sinead Suszcynski of Commack, clinical nurse specialist/informatics coordinator at St. Catherine of Siena Medical Center in Smithtown, has been promoted to director of nursing education and training.

BIOTECHNOLOGY

Maxwell Fayans of Oceanside has been hired as a sales specialist at Chembio Diagnostic Systems Inc. in Medford. He was worldwide customer support engineer at AccuVein Inc. in Medford.

REAL ESTATE

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Douglas Elliman Real Estate has announced four hires.

Wasiq J. Rehmat of Little Neck, Queens, a new associate broker in Manhasset, was with Keller Williams Realty Liberty in Ozone Park, Queens.

Bonnie Schwartz-DeMatteo of Jericho, a new sales agent in Syosset, was an ultrasound technician at Memorial Sloan Kettering Memorial Hospital in Manhattan.

Samantha Ripka of Woodbury, a new sales agent in Syosset, was with Everyday Realty Services in Middle Island.

Salvatore Dazzo of Nesconset, a new sales agent in Smithtown, was with Realty Connect USA in Hauppauge.

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— DIANE DANIELS