National Ambulatory Medical Care Survey (NAMCS)


The National Ambulatory Medical Care Survey (NAMCS) is a national survey designed to meet the need for objective, reliable information about the provision and use of ambulatory medical care services in the United States. Findings are based on a sample of visits to non-federal employed office-based physicians who are primarily engaged in direct patient care.

Agency and Program Information

Agency: Centers for Disease Control and Prevention
Subject: Health Care Providers
Subject: Population Statistics
Subject: Treatments
Group Name: National Health Care Surveys
Date Released: May 1, 2012
Date Updated: Feb 1, 2013

Data Collection and Frequency

Collection Frequency: Annually
Coverage Period Start: Jan 1, 1973
Coverage Period End: Jan 1, 1973
Unit of Analysis: Physician-patient encounter or visit

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