BOARDS/ASSOCIATIONS

The Holocaust Memorial & Tolerance Center of Nassau County has appointed two new members to its board of directors.

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Martin Elias, of Muttontown, is president of Elias Properties Management in Jericho.

Terence E. Smolev, of Jericho, is founder of The Law Offices of Terence E. Smolev, also in Jericho.

HEALTH CARE

Denise Rigo has joined Long Island Spine Specialists in Commack as a nurse practitioner. The Commack resident was a nurse practitioner at St. Catherine of Siena Medical Center in Smithtown.

Dr. George D. Xipoleas has joined Long Island Plastic Surgical Group and will practice in the Manhasset and Garden City offices. The Hicksville resident completed a plastic surgery residency at The Mount Sinai Hospital in Manhattan and an aesthetic surgery fellowship at The New York Eye and Ear Infirmary, also in Manhattan.