Dennis was the former President and CEO of Catholic Medical Partners (CMP), one of the top performing Shared Saving Accountable Care Organizations (ACO) in the country. At CMP, Dennis and his leadership team managed over $1 billion in healthcare expenditures using a population health/business model. Dennis has held management positions in a variety of healthcare settings including: a neighborhood health center, an academic medical center and a not for profit health maintenance organization. His professional focus has been designing integrated delivery systems and using the principle and practice of public health and clinical integration. Dennis is a frequent lecturer on clinical integration, accountable care and high-performing healthcare systems. He is also an instructor at the University of Buffalo’s School of Public Health.