KEY FINDINGS Data from the National Health Interview Survey, 2014 •The percentage of adults without a usual place of medical care ranged from 2.8% in Vermont to 26.7% in Nevada. •The percentage of adults who did not have a general doctor visit in the past 12 months ranged from 15.9% in Vermont to 48.1% in Montana. •The percentage of adults without a usual place of medical care was lower in states that expanded Medicaid compared with nonexpansion states. •The percentage of adults without a usual place of medical care or who did not see a general doctor in the past 12 months was lower in states with partnership marketplaces compared with Federally Facilitated Marketplace states. State-level differences in the percentage of uninsured Americans, along with other factors, may affect health care access and utilization (1-4). This report examines the prevalence of two health care utilization measures among adults aged 18-64 by state. Additionally, differences by Medicaid expansion status and state Health Insurance Marketplace type are examined. Estimates are based on the 2014 National Health Interview Survey, a nationally representative sample of the noninstitutionalized U.S.