title: The Affordable Care Act and Access to Care for People Changing Coverage Sources.
abstract: OBJECTIVE
  We investigated how access to and continuity of care might be affected by transitions between health insurance coverage sources, including the Marketplace (also called the Exchange), Medicaid, and the Children's Health Insurance Program (CHIP).
  
  
  METHODS
  From January to February 2014 and from August to September 2014, we searched provider directories for networks of primary care physicians and selected pediatric specialists participating in Marketplace, Medicaid, and CHIP in 6 market areas of the United States and calculated the degree to which networks overlapped.
  
  
  RESULTS
  Networks of physicians in Medicaid and CHIP were nearly identical, meaning transitions between those programs may not result in much physician disruption. This was not the case for Marketplace and Medicaid and CHIP networks.
  
  
  CONCLUSIONS
  Transitions from the Marketplace to Medicaid or CHIP may result in different degrees of physician disruption for consumers depending on where they live and what type of Marketplace product they purchase.
authors.affiliation: Cara Orfield, Lauren Hula, and Michael Barna are with Mathematica Policy Research, Ann Arbor, MI. Sheila Hoag is with Mathematica Policy Research, Princeton, NJ.
authors.forename: Cara
authors.initials: C
authors.lastname: Orfield
authors.affiliation: Cara Orfield, Lauren Hula, and Michael Barna are with Mathematica Policy Research, Ann Arbor, MI. Sheila Hoag is with Mathematica Policy Research, Princeton, NJ.
authors.forename: Lauren
authors.initials: L
authors.lastname: Hula
authors.affiliation: Cara Orfield, Lauren Hula, and Michael Barna are with Mathematica Policy Research, Ann Arbor, MI. Sheila Hoag is with Mathematica Policy Research, Princeton, NJ.
authors.forename: Michael
authors.initials: M
authors.lastname: Barna
authors.affiliation: Cara Orfield, Lauren Hula, and Michael Barna are with Mathematica Policy Research, Ann Arbor, MI. Sheila Hoag is with Mathematica Policy Research, Princeton, NJ.
authors.forename: Sheila
authors.initials: S
authors.lastname: Hoag
mesh_terms: D002648:Child; D002662:Child Health Services / Q000706:statistics & numerical data; D003266:Continuity of Patient Care / Q000706:statistics & numerical data*; D062265:Health Insurance Exchanges / Q000706:statistics & numerical data*; D006279:Health Maintenance Organizations / Q000706:statistics & numerical data; D006297:Health Services Accessibility / Q000706:statistics & numerical data*; D006801:Humans; D019458:Insurance Coverage / Q000706:statistics & numerical data; D007348:Insurance, Health / Q000706:statistics & numerical data; D008484:Medicaid / Q000706:statistics & numerical data; D008483:Medical Assistance / Q000706:statistics & numerical data*; D058991:Patient Protection and Affordable Care Act / Q000706:statistics & numerical data*; D011243:Preferred Provider Organizations / Q000706:statistics & numerical data; D011320:Primary Health Care / Q000706:statistics & numerical data*; D014481:United States