Under New Management. Locals Caring for Locals – A New Hampshire-Only Provider. Assistant Director of Nursing / Infection Preventionist (ADON/IP). Sign On Bonus. $3,000. Birch Healthcare Center – Rochester, NH. Birch Healthcare Center is seeking a passionate and experienced. Assistant Director of Nursing (ADON). who will also serve as our. Infection Preventionist (IP). This is an exciting full-time leadership opportunity to help guide our clinica...