Ambulatory Health Care Data
The National Ambulatory Medical Care Survey (NAMCS) is 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 nonfederally employed office-based physicians who are primarily engaged in direct patient care and, starting in 2006, a separate sample of visits to community health centers.
The National Hospital Ambulatory Medical Care Survey (NHAMCS) is designed to collect data on the utilization and provision of ambulatory care services in hospital emergency and outpatient departments and ambulatory surgery locations. Findings are based on a national sample of visits to the emergency departments, outpatient departments, and ambulatory surgery locations of noninstitutional general and short-stay hospitals.
What's New
Did You Know?
Data Products
- 2015 NAMCS summary tables [PDF – 693 KB] (10/2017)
- Characteristics of Visits to Primary Care Physicians by Adults Diagnosed With Hypertension [PDF – 576 KB] (9/2017)
- 2015 NAMCS pre-made SPSS and SAS datasets (9/2017)
- Slight revision to 2015 NAMCS public use file (9/2017)
- 2014 NHAMCS Emergency Department summary tables [PDF – 1.9 MB] (9/2017)
- 2015 NAMCS public-use data file (8/2017)
- 2014 NAMCS summary tables [PDF – 614 KB] (6/2017)
- 2012 NAMCS Community Health Center public use data file (6/2017)
- 2014 NHAMCS Emergency Department public use data file (4/2017)
- 2014 NAMCS public use data file (3/2017)
- 2010 NHAMCS Ambulatory Surgery (AS) public use data file (1/2017)
- 2013 NHAMCS Emergency Department summary tables [PDF – 521 KB] (12/2016)
- 2013 NHAMCS Emergency Department public-use data file (10/2016)
- 2012 NHAMCS Emergency Department summary tables [PDF – 647 KB] (10/2016)
- State Variation in Electronic Sharing of Information in Physician Offices: United States, 2015 (10/2016)
- Data from the 2015 National Electronic Health Records Survey are now available for use in the NCHS Research Data Center. (7/2016)
- 2013 NAMCS public-use data file (7/2016)
Publications
- Ambulatory Surgery Data From Hospitals and Ambulatory Surgery Centers: United States, 2010 [PDF – 471 KB] (2/2017)
- Emergency Department Visits for Injury and Illness Among Adults Aged 65 and Over: United States, 2012–2013 (2/2017)
- Characteristics of Primary Care Physicians in Patient-centered Medical Home Practices: United States, 2013 [PDF – 301 KB] (2/2017)
- Physician Office Visits for Attention-deficit/Hyperactivity Disorder in Children and Adolescents Aged 4–17 Years: United States, 2012–2013 (1/2017)
- Age Differences in Visits to Office-based Physicians by Adults With Hypertension: United States, 2013 (11/2016)
- Expected Source of Payment at Emergency Department Visits for Adults Aged 18–64 for the United States and in the Five Most Populous States, 2012 (6/2016)
- Emergency Department Use in the Country’s Five Most Populous States and the Total United States, 2012 (6/2016)
- Physician Office Visits by Children for Well and Problem-focused Care: United States, 2012 (5/2016)
- Page last reviewed: August 31, 2017
- Page last updated: August 31, 2017
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