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Insurance Coverage and Provision of Opioid Disorder Treatment: Evidence From Medicare

Author

Listed:
  • Denis Agniel
  • Jonathan Cantor
  • Johanna Catherine Maclean
  • Erin A. Taylor
  • Kosali Simon

Abstract

Older adult opioid overdose deaths have increased over the past two decades in the United States. Methadone, one of three medications approved for opioid use disorder (OUD) treatment, was not covered by Medicare—the primary insurer of Americans 65 years and older—for OUD until 2020. We study the response of opioid treatment programs (OTPs), the only healthcare providers that can dispense methadone for the treatment of OUD in the United States, to this policy change using administrative data and a difference‐in‐differences framework. We find an increase in Medicare acceptance by OTPs and in the number of methadone treatment episodes post‐policy. Further, we document spillovers to other insurance markets and changes in (non‐methadone) treatment services offered by OTPs, suggesting that Medicare's entrance into this market has implications for all OUD patients receiving methadone treatment in OTPs.

Suggested Citation

  • Denis Agniel & Jonathan Cantor & Johanna Catherine Maclean & Erin A. Taylor & Kosali Simon, 2026. "Insurance Coverage and Provision of Opioid Disorder Treatment: Evidence From Medicare," Journal of Policy Analysis and Management, John Wiley & Sons, Ltd., vol. 45(3), June.
    • Handle: RePEc:wly:jpamgt:v:45:y:2026:i:3:n:e70106
    DOI: 10.1002/pam.70106
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