OASH oversees the Department’s key public health offices and programs, a number of Presidential and Secretarial advisory committees, 10 regional health offices across the nation, and the Office of the Surgeon General and the U.S. Public Health Service Commissioned Corps. Leadership Find information on key personnel at OASH. Organizational Chart See the offices that fall under the Assistant Secretary for Health. OASH Regional Offices Find information about OASH’s ten regional offices and the Office of Regional Health Operations (ORHO). OASH News Read announcements, news releases, blog postings, and statements about OASH programs and activities. Contact Us Contact the Office of the Assistant Secretary for Health (OASH) or a public health office.