usa_flag  Rockville, USA

"Advancing Excellence in Health Care"
Dr. Yen-pin Chiang, Acting Director, AHRQ


History and Structure

The Center for Outcomes and Evidence was established in 2003 and serves as a single point of contact for organizations searching for comprehensive evidence reviews on health conditions, treatments, and technologies.  The Center is one of five research centers in AHRQ that conduct and support research to enhance the quality, appropriateness, and effectiveness of health services in the United States.  AHRQ is a "science partner" with private and public organizations in their efforts to improve the quality, effectiveness, and appropriateness of clinical practice by improving the evidence base that serves as its foundation.


AHRQ's mission is to conduct and support studies of the outcomes and effectiveness of diagnostic, therapeutic and preventive health care services and procedures.

How AHRQ Works

Thirteen Evidence-based practice Centers (EPCs) throughout North America, which develop evidence reports and technology assessments on clinical topics that are common, expensive, and/or significant for the Medicare population.

National Guideline Clearinghouse (NGC), a comprehensive, Internet-based source for clinical practice guidelines in partnership with American Association of Health Plans (AAHP) and the American Medical Association (AMA).

The US Preventive Services Task Force (USPSTF), an expert panel whose members evaluate the scientific evidence for effectiveness of a range of clinical preventative services and produce recommendations for services to be included in the periodic health examination.

The technology assessment program at the Agency for Healthcare Research and Quality (AHRQ) provides technology assessments for the Centers for Medicare & Medicaid Services (CMS). These technology assessments are used by CMS to inform its national coverage decisions for the Medicare program as well as provide information to Medicare carriers.

AHRQ's technology assessment program uses state-of-the-art methodologies for assessing the clinical utility of medical interventions. Technology assessments are based on a systematic review of the literature, along with appropriate qualitative and quantitative methods of synthesizing data from multiple studies.

Technology assessments may be done in-house by AHRQ staff, or they may be done in collaboration with one of our Evidence-based Practice Centers.  When available, technology assessment topics are linked to corresponding information on the CMS Web site. For additional information, please contact the technology assessment program at

Dissemination Activities

A list of completed reports and work in progress are available on the AHRQ website (  Reports may be obtained by contacting the technology assessment program at

Current Projects (A Selection)

  •  Diabetic neuropathy
  •  Nonhealing nonunion fractures
  •  Point of care testing for HBA1c
  •  Free Standing Cardiac Catherization units
  •  Hip Implants
  •  Genetic testing
  •  Disease Registries.


Agency Information


Country: USA
Description of population served: Medicare eligible Americans
Population served (mil): 40.0
Current HTA budget (mil USD): 1.5
Permanent staff: 4
Consultants: As needed
Ongoing TA projects: fluctuates

Contact information

Director: Dr. Yen-pin Chiang
Contact person: Ms. Elise Berliner

Agency for Healthcare Research and Quality
Center for Outcomes & Evidence
540 Gaither Road
M.D. 28050 Rockville USA

Tel: +1 301 427 1612
Fax: +1 301 427 1639