BOSTON (AP) — One of the architects of a state law aimed at bringing down health care costs is leaving the House of Representatives.

Rep. Steven Walsh, a Lynn Democrat, was named Tuesday to the post of executive director of the Massachusetts Council of Community Hospitals.

Walsh chairs the House committee on Health Care Financing. He helped write the 2012 law that seeks saving of up to $200 billion in health care costs over 15 years.

Walsh is one of several top Democrats to move on from the House in recent weeks.

Rep. Kathi-Anne Reinstein of Revere, an assistant majority leader, took a job with the Boston Beer Co.

Rep. Eugene O'Flaherty of Chelsea, chairman of the House Judiciary Committee, accepted a post in the administration of Boston Mayor Martin Walsh.