Nurses Improving Care of Healthsystem Elders (NICHE) provides hospitals with tools and resources to implement a geriatric initiative to improve health outcomes and experiences for older adults and their families. Beginning in 2011, members have engaged in a process of program self-evaluation, designed to evaluate internal progress toward developing, sustaining and disseminating NICHE. This manuscript describes the NICHE Site Self -evaluation and reports the inaugural self-evaluation data in 180 North American hospitals. NICHE members evaluate their program utilizing the following dimensions of a geriatric acute care program: guiding principles, organizational structures, leadership, geriatric staff competence, interdisciplinary resources and processes, patient- and family-centered approaches, environment of care, and quality metrics. The majority of NICHE sites were at the progressive implementation level (n= 100, 55.6%), having implemented interdisciplinary geriatric education and the geriatric resource nurse (GRN) model on at least one unit; 29% have implemented the GRN model on multiple units, including specialty areas. Bed size, teaching status, and Magnet® status were not associated with level of implementation, suggesting that NICHE implementation can be successful in a variety of settings and communities.