NCHS Reports Using Ambulatory Health Care Data

Below are recent NCHS reports using data from NAMCS and NHAMCS, but many older reports are not shown. For a list of all NAMCS and NHAMCS titles, see NAMCS/NHAMCS Publications List [PDF – 424 KB]. To access downloadable versions of all reports, go to Search for NCHS Publications.

Physician Office Visits

• Experiences Related to the COVID-19 Pandemic Among U.S. Physicians in Office-based Settings, 2020–2021 [PDF – 305 KB]
  National Health Statistics Report No. 175
• Characteristics of Office-based Physician Visits, 2018
  Data Brief No. 408
• Urban-rural Differences in Visits to Office-based Physicians by Adults With Hypertension: United States, 2014–2016 [PDF – 276 KB]
  National Health Statistics Report No. 147
• Physician Office Visits at Which Benzodiazepines Were Prescribed: Findings From 2014–2016 National Ambulatory Medical Care Survey [PDF – 376 KB]
  National Health Statistics Report No. 137
• Characteristics of Asthma Visits to Physician Offices in the United States: 2012–2015 National Ambulatory Medical Care Survey [PDF – 876 KB]
  National Health Statistics Report No. 128
• Characteristics of Office-based Physician Visits, 2016
  Data Brief No. 331
• Patient Health Information Shared Electronically by Office-based Physicians: United States, 2015 [PDF – 377 KB]
  National Health Statistics Reports No. 115
• Mental Health-related Physician Office Visits by Adults Aged 18 and Over: United States, 2012–2014
  Data Brief No. 311
• Characteristics of Office-based Physician Visits, 2015
  Data Brief No. 310
• Characteristics of Office-based Physician Visits, 2014
  Data Brief No. 292
• Collecting Practice-level Data in a Changing Physician Office-based Ambulatory Care Environment: A Pilot Study Examining the Physician Induction Interview Component of the National Ambulatory Medical Care Survey [PDF – 3 MB]
  Vital and Health Statistics Series Report No. 176
• Characteristics of Visits to Primary Care Physicians by Adults Diagnosed With Hypertension [PDF – 576 KB]
  National Health Statistics Report No. 106
• Characteristics of Primary Care Physicians in Patient-centered Medical Home Practices: United States, 2013 [PDF – 301 KB]
  National Health Statistics Report No. 101
• Physician Office Visits for Attention-deficit/Hyperactivity Disorder in Children and Adolescents Aged 4–17 Years: United States, 2012–2013
  Data Brief No. 269
• Age Differences in Visits to Office-based Physicians by Adults With Hypertension: United States, 2013
  Data Brief No. 263
• Characteristics of Physician Office Visits for Obesity by Adults Aged 20 and Over: United States, 2012
  Data Brief No. 237
• Variation in Physician Office Visit Rates by Patient Characteristics and State, 2012
  Data Brief No. 212
• Acceptance of New Patients With Public and Private Insurance by Office-based Physicians: United States, 2013
  Data Brief No. 195
• Age Differences in Visits to Office-based Physicians by Patients With Diabetes: United States, 2010
  Data Brief No. 161
• Generalist and Specialty Physicians: Supply and Access, 2009–2010
  Data Brief No. 105
• Liquid-based Cytology Test Use by Office-based Physicians: United States, 2006-2007 [PDF – 113 KB]
  National Health Statistics Report No. 40
• Nurse Practitioners, Certified Nurse Midwives, and Physician Assistants in Physician Offices
  Data Brief No. 69
• Visits to Primary Care Delivery Sites: United States, 2008
  Data Brief No. 47
• Population Aging and the Use of Office-based Physician Services
  Data Brief No. 41
• National Ambulatory Medical Care Survey:
  • 2007 Summary [PDF – 702 KB]
    National Health Statistics Report No. 27
  • 2006 Summary [PDF – 855 KB]
    National Health Statistics Report No. 3
  • 2005 Summary [PDF – 867 KB]
    Advance Data No. 387
  • 2004 Summary [PDF – 932 KB]
    Advance Data No. 374
  • 2003 Summary [PDF – 1.5 MB]
    Advance Data No. 365
  • 2002 Summary [PDF – 1 MB]
    Advance Data No. 346
  • 2001 Summary [PDF – 1.7 MB]
    Advance Data No. 337
  • 2000 Summary [PDF – 1.2 MB]
    Advance Data No. 328
  • 1999 Summary [PDF – 1.3 MB]
    Advance Data No. 322
  • 1998 Summary [PDF – 250 KB]
    Advance Data No. 315
  • 1997 Summary [PDF – 468 KB]
    Advance Data No. 305
  • 1996 Summary [PDF – 533 KB]
    Advance Data No. 295
  • 1995 Summary [PDF – 317 KB]
    Advance Data No. 286
  • 1994 Summary [PDF – 2.2 MB]
    Advance Data No. 273
  • 1993 Summary [PDF – 2.4 MB]
    Advance Data No. 270
  • 1992 Summary [PDF – 2.3 MB]
    Advance Data No. 253
  • 1991 Summary [PDF – 2.2 MB]
    Advance Data No. 230
• Office Visits to Orthopedic Surgeons: United States, 1995-96 [PDF – 668 KB]
  Advance Data No. 302

Community Health Center Visits

• Community Health Centers: Providers, Patients, and Content of Care
  Data Brief No. 65

Hospital Outpatient Department Visits

• National Hospital Ambulatory Medical Care Survey:
  • Emergency Department Visit Rates for Assault: United States, 2019–2021
    Data Brief No. 481
  • Physician Assistant and Advance Practice Nurse Care in Hospital Outpatient Departments: United States, 2008-2009.
    Data Brief No. 77
  • Visits to Primary Care Delivery Sites: United States, 2008
    Data Brief No. 47
  • 2007 Outpatient Department Summary [PDF – 609 KB]
    National Health Statistics Report No. 28
  • 2006 Outpatient Department Summary [PDF – 616 KB]
    National Health Statistics Report No. 4
  • 2005 Outpatient Department Summary [PDF – 675 KB]
    Advance Data No. 389
  • 2004 Outpatient Department Summary [PDF – 1.1 MB]
    Advance Data No. 373
  • 2003 Outpatient Department Summary [PDF – 1.1 MB]
    Advance Data No. 366
  • 2002 Outpatient Department Summary [PDF – 1 MB]
    Advance Data No. 345
  • 2001 Outpatient Department Summary [PDF – 1.3 MB]
    Advance Data No. 338
  • 2000 Outpatient Department Summary [PDF – 1 MB]
    Advance Data No. 327
  • 1999 Outpatient Department Summary [PDF – 1.4 MB]
    Advance Data No. 321
  • 1998 Outpatient Department Summary [PDF – 227 KB]
    Advance Data No. 317
  • 1997 Outpatient Department Summary [PDF – 317 KB]
    Advance Data No. 307
  • 1996 Outpatient Department Summary [PDF – 362 KB]
    Advance Data No. 294
  • 1995 Outpatient Department Summary [PDF – 598 KB]
    Advance Data No. 284
  • 1994 Outpatient Department Summary [PDF – 205 KB]
    Advance Data No. 276
  • 1993 Outpatient Department Summary [PDF – 200 KB]
    Advance Data No. 268
  • 1992 Outpatient Department Summary [PDF – 1.3 MB]
    Advance Data No. 248

Hospital Emergency Department Visits

• Emergency Department Visits Related to Mental Health Disorders Among Children and Adolescents: United States, 2018–2021 (10/24/2023)
• Emergency Department Visit Rates by Selected Characteristics: United States, 2021 (8/24/2023)
• Emergency Department Visits Among Children Aged 0–17 by Selected Characteristics: United States, 2019–2020 (6/6/2023)
• Emergency Department Visits with Suicidal Ideation: United States, 2016–2020 (4/13/2023)
  Data Brief No. 463
• Emergency Department Visits Related to Mental Health Disorders Among Adults, by Race and Hispanic Ethnicity: United States, 2018–2020 [PDF – 387 KB]
  National Health Statistics Reports No. 181
• Opioids Prescribed to Adults at Discharge from Emergency Departments: United States, 2017–2020
  Data Brief No. 461
• Emergency Department Visit Rates by Selected Characteristics: United States, 2020
  Data Brief No. 452
• Emergency Department Visits by Adults With Chronic Conditions Associated With Severe COVID-19 Illness: United States, 2017–2019 [PDF – 1,013 KB]
  National Health Statistics Reports No. 174
• Emergency Department Visit Rates by Selected Characteristics: United States, 2019
  Data Brief No. 434
• Emergency Department Visits Among Adults With Mental Health Disorders: United States, 2017–2019
  Data Brief No. 426
• National Hospital Care Survey Demonstration Projects: Severe Maternal Morbidity in Inpatient and Emergency Departments [PDF – 298 KB]
  National Health Statistics Reports No. 166
• Emergency Department Visit Rates for Motor Vehicle Crashes by Selected Characteristics: United States, 2017–2018 
  Data Brief No. 410
• Emergency Department Visits for Influenza and Pneumonia: United States, 2016–2018
  Data Brief No. 402
• Emergency Department Visit Rates by Selected Characteristics: United States, 2018
  Data Brief No. 401
• Respiratory Illness Emergency Department Visits in the National Hospital Care Survey and the National Hospital Ambulatory Medical Care Survey [PDF – 993 KB]
  National Health Statistics Reports No. 151
• Opioid-involved Emergency Department Visits in the National Hospital Care Survey and the National Hospital Ambulatory Medical Care Survey [PDF – 402 KB]
  National Health Statistics Reports No. 149
• Emergency Department Visits Among Adults Aged 60 and Over: United States, 2014–2017
  Data Brief No. 367
• Trends in Opioids Prescribed at Discharge From Emergency Departments Among Adults: United States, 2006–2017 [PDF – 437 KB]
  National Health Statistics Reports No. 135
• Emergency Department Visits for Injuries Sustained During Sports and Recreational Activities by Patients Aged 5–24 Years, 2010–2016 [PDF – 961 KB]
  National Health Statistics Reports No. 133
• Opioids Prescribed at Discharge or Given During Emergency Department Visits Among Adults in the United States, 2016
  Data Brief No. 338
• National Hospital Care Survey Demonstration Projects: Characteristics of Inpatient and Emergency Department Encounters Among Patients With Any Listed Diagnosis of Alzheimer Disease [PDF – 458 KB]
  National Health Statistics Reports No. 121
• Emergency Department Visits by Patients Aged 45 and Over With Diabetes: United States, 2015
  Data Brief No. 301
• Emergency Department Visits for Injury and Illness Among Adults Aged 65 and Over: United States, 2012–2013
  Data Brief No. 272
• 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
  Data Brief No. 253
• Emergency Department Use in the Country’s Five Most Populous States and the Total United States, 2012
  Data Brief No. 252
• Emergency Department Visits Related to Schizophrenia Among Adults Aged 18–64: United States, 2009–2011
  Data Brief No. 215
• Emergency Department Visits for Drug Poisoning: United States, 2008–2011
  Data Brief No. 196
• Trends in Emergency Department Visits for Ischemic Stroke and Transient Ischemic Attack: United States, 2001–2011
  Data Brief No. 194
• Emergency Department Visits and Proximity to Patients’ Residences, 2009–2010
  Data Brief No. 192
• Emergency Department Visits for Motor Vehicle Traffic Injuries: United States, 2010–2011
  Data Brief No. 185
• Injury-related Emergency Department Visits by Children and Adolescents: United States, 2009–2010
  Data Brief No. 150
• Emergency Department Visits by Persons Aged 65 and Over: United States, 2009–2010
  Data Brief No. 130
• Wait Time for Treatment in Hospital Emergency Departments: 2009
  Data Brief No. 102
• Blood Pressure Measurements at Emergency Department Visits by Adults: United States, 2007–2008
  Data Brief No. 72
• Emergency Department Visits for Chest Pain and Abdominal Pain: United States, 1999-2008
  Data Brief No. 43
• Emergency Department Visitors and Visits: Who Used the Emergency Room in 2007?
  Data Brief No. 38
• Emergency Department Visits by Persons Recently Discharged from U.S. Hospitals [PDF – 150 KB]
  National Health Statistics Report No. 6
• National Hospital Ambulatory Medical Care Survey:
  • 2007 Emergency Department Summary [PDF – 624 KB]
    National Health Statistics Report No. 26
  • 2006 Emergency Department Summary [PDF – 696 KB]
    National Health Statistics Report No. 7
  • 2005 Emergency Department Summary [PDF – 612 KB]
    Advance Data No. 386
  • 2004 Emergency Department Summary [PDF – 998 KB]
    Advance Data No. 372
  • 2003 Emergency Department Summary [PDF – 871 KB]
    Advance Data No. 358
  • 2002 Emergency Department Summary [PDF – 1 MB]
    Advance Data No. 340
  • 2001 Emergency Department Summary [PDF – 1.4 MB]
    Advance Data No. 335
  • 2000 Emergency Department Summary [PDF – 1.2 MB]
    Advance Data No. 326
  • 1999 Emergency Department Summary [PDF – 1.1 MB]
    Advance Data No. 320
  • 1998 Emergency Department Summary [PDF – 259 KB]
    Advance Data No. 313
  • 1997 Emergency Department Summary [PDF – 647 KB]
    Advance Data No. 304
  • 1996 Emergency Department Summary [PDF – 391 KB]
    Advance Data No. 293
  • 1995 Emergency Department Summary [PDF – 654 KB]
    Advance Data No. 285
  • 1994 Emergency Department Summary [PDF – 220 KB]
    Advance Data No. 275
  • 1993 Emergency Department Summary [PDF – 181 KB]
    Advance Data No. 271
  • 1992 Emergency Department Summary [PDF – 166 KB]
    Advance Data No. 245
• Characteristics of Emergency Departments Serving High Volumes of Safety Net Patients: United States, 2000 [PDF – 4 MB]
  Series 13, No. 155
• Trends in Hospital Emergency Department Utilization: United States, 1992-99 [PDF – 1.9 MB]
  Series 13, No. 150
• Alcohol-and-Drug-Related Visits to Hospital Emergency Departments: 1992 National Hospital Ambulatory Medical Care Survey [PDF – 1.9 MB]
  Advance Data No. 251

Medication Therapy

• Medication Therapy in Ambulatory Medical Care: United States, 2003-04 [PDF – 1.2 MB]
  Series 13, No. 163
• Medication Therapy in Ambulatory Medical Care: National Ambulatory Medical Care Survey and National Hospital Ambulatory Medical Care Survey: 1992 [PDF – 391 KB]
  Advance Data No. 290
• Drug Utilization in Office Practice: 1990 [PDF – 1.5 MB]
  Advance Data No. 232
• Utilization of Controlled Drugs in Ambulatory Care: 1985 [PDF – 1 MB]
  Advance Data No. 177
• Highlights of Drug Utilization in Office Practice: 1985 [PDF – 1.3 MB]
  Advance Data No. 134

Combined Reports

• Ambulatory Surgery Data From Hospitals and Ambulatory Surgery Centers: United States, 2010 [PDF – 471 KB]
  National Health Statistics Report No. 102
• Ambulatory Medical Care Utilization Estimates for 2007 [PDF – 797 KB]
  Series 13, No. 169
• Health Care Utilization Among Adults Aged 55-64 Years: How Has It Changed Over the Past 10 Years?
  Data Brief No. 32
• Ambulatory Medical Care Utilization Estimates for 2006 [PDF – 624 KB]
  National Health Statistics Report No. 8
• Ambulatory Medical Care Utilization Estimates for 2005 [PDF – 284 KB]
  Advance Data No. 388
• Ambulatory Care Visits to Physician Offices, Hospital Outpatient Departments, and Emergency Departments: United States, 2001-02 [PDF – 3.9 MB]
  Series 13, No. 159
• Ambulatory Care Visits to Physician Offices, Hospital Outpatient Departments, and Emergency Departments: United States, 1999-2000 [PDF – 3.7 MB]
  Series 13, No. 157
• Utilization of Ambulatory Medical Care by Women: United States, 1997-98 [PDF – 1.7 MB]
  Series 13, No. 149
• Ambulatory Care Visits to Physician Offices, Hospital Outpatient Departments, and Emergency Departments: United States, 1997 [PDF – 778 KB]
  Series 13, No. 143
• Ambulatory Health Care Visits by Children: Principal Diagnosis and Place of Visit [PDF – 402 KB]
  Series 13, No. 137
• Ambulatory Care Visits to Physician Offices, Hospital Outpatient Departments, and Emergency Departments: United States, 1996 [PDF – 846 KB]
  Series 13, No. 134
• Ambulatory Care Visits to Physician Offices, Hospital Outpatient Departments, and Emergency Departments: United States, 1995 [PDF – 599 KB]
  Series 13, No. 129

Injury Visits

• Emergency Department Visits and Proximity to Patients’ Residences, 2009–2010
  Data Brief No. 192
• Injury-related Emergency Department Visits by Children and Adolescents: United States, 2009–2010
  Data Brief No. 150
• Injury-related Visits to Hospital Emergency Departments: United States: 1992 [PDF – 2.2 MB]
  Advance Data No. 261
• Injury Visits to Hospital Emergency Departments: United States [PDF – 1.6 MB]
  Series 13, No. 131

Use of Electronic Medical Record/Electronic Health Record (EMR/EHR) Systems

• State Variation in Electronic Sharing of Information in Physician Offices: United States, 2015
  Data Brief No. 261
• Progress With Electronic Health Record Adoption Among Emergency and Outpatient Departments: United States, 2006–2011
  Data Brief No. 187
• Trends in Electronic Health Record System Use Among Office-based Physicians: United States, 2007–2012 [PDF – 350 KB]
  National Health Statistics Report No. 75
• Use and Characteristics of Electronic Health Record Systems Among Office-based Physician Practices: United States, 2001–2013 Data Brief No. 143
• Physician Experience With Electronic Health Record Systems That Meet Meaningful Use Criteria: NAMCS Physician Workflow Survey, 2011 Data Brief No. 129
• Use and Characteristics of Electronic Health Record Systems Among Office-based Physician Practices: United States, 2001-2012 Data Brief No. 111
• Physician Adoption of Electronic Health Record Systems: United States, 2011 Data Brief No. 98
• Electronic Health Record Systems and Intent to Apply for Meaningful Use Incentives Among Office-based Physician Practices: United States, 2001–2011
  Data Brief No. 79
• Electronic Medical Record/Electronic Health Record Systems of Office-based Physicians: United States, 2009 and Preliminary 2010 State Estimates
  Health E-Stat
• Electronic Medical Record Use by Office-based Physicians and Their Practices: United States, 2007 [PDF – 185 KB]
  National Health Statistics Report No. 23
• Use of Electronic Medical Records by Ambulatory Care Providers: United States, 2006 [PDF – 308 KB]
  National Health Statistics Report No. 22
• Electronic Medical Record/Electronic Health Record Use by Office-based Physicians: United States, 2008 and Preliminary 2009
  Health E-Stat
• Preliminary Estimates of Electronic Medical Record Use by Office-based Physicians: United States, 2008
  Health E-Stat
• Electronic Medical Record Use by Office-Based Physicians and Their Practices: United States, 2006 [PDF – 192 KB]
  Advance Data No. 393
• Use of Computerized Clinical Support Systems in Medical Settings: United States, 2001-2003 [PDF – 134 KB]
  Advance Data No. 353

Other Provider Characteristics

• Characteristics of Visits to Health Centers: United States, 2020
  Data Brief  No. 438
• Machine Learning for Medical Coding in Healthcare Surveys [PDF – 949 KB]
• Enhancing Identification of Opioid-involved Health Outcomes Using National Hospital Care Survey Data [PDF – 972 KB]
• National Hospital Care Survey Demonstration Projects: Stroke Inpatient Hospitalizations [PDF – 919 KB]
  National Health Statistics Reports No. 132
• Evaluation of Transition From ICD–9–CM to ICD–10–CM Diagnosis Coding System in the National Ambulatory Medical Care Survey [PDF – 449 KB]
  National Health Statistics Reports No. 120
• Nonresponse Bias in Estimates from the 2012 National Ambulatory Medical Care Survey [PDF – 3.4 MB]
  Series 2, No. 171
• State Variation in Preventive Care Visits, by Patient Characteristics, 2012 Data Brief No. 234
• State Variability in Supply of Office-based Primary Care Providers: United States, 2012
  Data Brief No. 151
• Availability of Pediatric Services and Equipment in Emergency Departments: United States, 2006 [PDF – 837 KB]
  National Health Statistics Report No. 47
• Role of International Medical Graduates Providing Office-based Medical Care: United States, 2005-2006
  Data Brief No. 13
• Characteristics of Office-Based Physicians and Their Practices:  United States, 2005-2006 [PDF – 588 KB]
  Series 13, No. 166
• Emergency Response Planning in Hospitals, United States: 2003-2004 [PDF – 195 KB]
  Advance Data No. 391
• National Ambulatory Medical Care Survey: Terrorism Preparedness Among Office-Based Medical Physicians: United States, 2003-2004 [PDF – 288 KB]
  Advance Data No. 390
• Office-based Medical Practices: Methods and Estimates from the National Ambulatory Medical Care Survey: United States, 2007 [PDF – 392 KB]
  Advance Data No. 383
• Characteristics of Office-Based Physicians and Their Practices:  United States, 2003-04 [PDF – 956 KB]
  Series 13, No. 164
• Training for Terrorism-Related Conditions in Hospitals: United States, 2003-04 [PDF – 256 KB]
  Advance Data No. 380
• Staffing, Capacity, and Ambulance Diversion in Emergency Departments: United States, 2003-04 [PDF – 1.2 MB]
  Advance Data No. 376
• Availability of Pediatric Services and Equipment in Emergency Departments: United States, 2002-03 [PDF – 721 KB]
  Advance Data No. 367
• Bioterrorism and Mass Casualty Preparedness in Hospitals: United States: 2003 [PDF – 866 KB]
  Advance Data No. 364