ul>Be available to service clients in towns north of Tarrytown, Westchester: Sleepy Hallow, Ossining, Briar Cliff Manor, Croton-on Hudson, Buchanan, Peekskill, Cortlandt Manor, Montrose, Verplanck & Crugers.. We’re one of the largest nonprofit home- and community-based health care organizations in the country, and today, more than 11,500 team members work together to make a difference in the lives of more than 99,000 patients and members on any given day.