… of the Board of Directors of Essential Partners, a Cambridge-based non-profit that has for 30 years been a leader in community-based dialogue in educational, faith-based, … of Government Affairs at the Massachusetts Medical Society, where he directed the state and federal legislative affairs for the organization representing over 25,000 … of the Board of Directors of Essential Partners, a Cambridge-based non-profit that has for 30 years been a leader in community-based dialogue in educational, …