Impact of medicaid expansion on medicaid-covered utilization of buprenorphine for opioid use disorder treatment

Hefei Wen, Jason M. Hockenberry, Tyrone F. Borders, Benjamin G. Druss

Research output: Contribution to journalArticlepeer-review

107 Scopus citations

Abstract

Background: Buprenorphine has been proven effective in treating opioid use disorder. However, the high cost of buprenorphine and the limited prescribing capacity may restrict access to this effective medication-assisted treatment for opioid use disorder. Objective: To examine whether Medicaid expansion and physician prescribing capacity may have impacted buprenorphine utilization covered by Medicaid. Research Design: We used a quasi experimental difference-in-differences design to compare the pre-post changes in Medicaid-covered buprenorphine prescriptions and buprenorphine spending between the 26 states that implemented Medicaid expansions under the Affordable Care Act in 2014 and those that did not. Subjects: All Medicaid enrollees in the expansion states and the nonexpansion and late-expansion states. Measures: Quarterly Medicaid prescriptions for buprenorphine and spending on buprenorphine from the Centers for Medicare and Medicaid Services Medicaid Drug Utilization files 2011 to 2014. Results: State implementation of Medicaid expansions in 2014 was associated with a 70% increase (P<0.05) in Medicaid-covered buprenorphine prescriptions and a 50% increase (P<0.05) in buprenorphine spending. Physician prescribing capacity was also associated with increased buprenorphine utilization. Conclusions: Medicaid expansion has the potential to reduce the financial barriers to buprenorphine utilization and improve access to medication-assisted treatment of opioid use disorder. Active physician participation in the provision of buprenorphine is needed for ensuring that Medicaid expansion achieves its full potential in improving treatment access.

Original languageEnglish
Pages (from-to)336-341
Number of pages6
JournalMedical Care
Volume55
Issue number4
DOIs
StatePublished - 2017

Bibliographical note

Publisher Copyright:
Copyright © 2017 Wolters Kluwer Health, Inc. All rights reserved.

Keywords

  • Medicaid expansion
  • access to care
  • healthcare reform
  • opioid abuse

ASJC Scopus subject areas

  • Public Health, Environmental and Occupational Health

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