Melissa Hershfield of Somers has been named assistant vice president for regulatory affairs, performance improvement and management at South Nassau Communities Hospital in Oceanside. She is also director-at-large of the state chapter of the National Association for Healthcare Quality in Commack and was the nursing and quality management executive at Manhattan Eye, Ear and Throat Hospital.
Jivanna Okolica of North Hills has been hired as a sales agent at Laffey Real Estate in Great Neck. She was a clinical social worker in the Rockville Centre school district.
Signature Premier Properties has three new sales agents.
Lindsey Feeley of Sayville, hired in Babylon, was with Coldwell Banker Residential Brokerage in Babylon.
Caryn Blum of Malverne, hired in Rockville Centre, was with Real Living Innovations Realty Group in Wantagh.
Doreen Williamson of Northport, hired in Northport, was with Coldwell Banker Residential Brokerage in Northport.
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