Primary Care Provides the Majority of Outpatient Care for Patients with Diabetes in the US: NAMCS 2009–2015

  • Scott J. PillaEmail author
  • Jodi B. Segal
  • Nisa M. Maruthur
Concise Research Reports


Diabetes affects 30.2 million adults in the US and contributes to substantial health and economic burdens.1, 2 While there are many evidence-based interventions that are expected to improve diabetes outcomes,3 many patients with diabetes do not achieve their goals for prevention and treatment,4 particularly less educated individuals and racial/ethnic minorities.5 To improve diabetes disparities and outcomes, resources for implementing evidence-based interventions are needed in the settings where patients with diabetes receive healthcare.3 This study provides national estimates of the distribution of outpatient visits for US adults with diabetes across care settings to inform the delivery of resources for diabetes interventions.


We analyzed the 2009 through 2015 National Ambulatory Medical Care Survey (NAMCS) which includes visits to non-federal office-based physicians engaged in direct patient care, and National Hospital Ambulatory Medical Care Survey (NHAMCS),...



Only the listed authors contributed to the manuscript.


SJP was supported by the National Heart, Lung, and Blood Institute (5T32HL007180-40, PI: Hill-Briggs). JBS was supported by the National Institute on Aging (1K24AG049036).

Compliance with Ethical Standards

Conflict of Interest

The authors declare that they do not have a conflict of interest.


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Copyright information

© Society of General Internal Medicine 2019

Authors and Affiliations

  • Scott J. Pilla
    • 1
    Email author
  • Jodi B. Segal
    • 1
    • 2
    • 3
    • 4
    • 5
  • Nisa M. Maruthur
    • 1
    • 2
    • 5
  1. 1.Department of Medicine, Division of General Internal Medicine The Johns Hopkins University School of MedicineBaltimoreUSA
  2. 2.Department of EpidemiologyThe Johns Hopkins Bloomberg School of Public HealthBaltimoreUSA
  3. 3.Department of Health Policy and ManagementThe Johns Hopkins Bloomberg School of Public HealthBaltimoreUSA
  4. 4.Center for Drug Safety and EffectivenessThe Johns Hopkins Bloomberg School of Public HealthBaltimoreUSA
  5. 5.Welch Center for Prevention, Epidemiology & Clinical ResearchBaltimoreUSA

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