Introduction of Medicare coverage in opioid treatment programs: Findings from the first three years

Background: Prior to January of 2020, there was no Medicare reimbursement for services delivered in opioid treatment programs (OTPs). OTPs are the only authorized providers of opioid use disorder (OUD) treatment with methadone, a critical tool to address the opioid overdose crisis. While prior research has examined the availability of MOUD other than methadone for Medicare beneficiaries, research has not identified organizational and local Medicare beneficiary characteristics associated with Medicare insurance acceptance among OTPs. Objectives: This study has two objectives: 1) to determine the extent to which OTPs began accepting Medicare insurance in the first three years following the new Medicare OTP benefit; and 2) to identify organizational characteristics and local Medicare beneficiary characteristics associated with OTP acceptance of Medicare. Methods: We used data from the 2021–2023 National Directory of Drug and Alcohol Abuse Treatment Facilities to examine OTP acceptance of Medicare. We used logistic regression to identify organizational characteristics and local Medicare beneficiary characteristics associated with OTP acceptance of Medicare (n = 4630 OTPs). Results: By 2022, about 78.7 % of OTPs accepted Medicare, compared to only 41.1 % of non-OTPs. The odds of Medicare acceptance were lower among for-profit OTPs, compared to non-profit OTPs, and higher among OTPs that accepted Medicaid and private insurance. Additionally, the odds of accepting Medicare were lower for OTPs located in the Northeast, Midwest, and South, compared to OTPs located in the West. Finally, the odds of accepting Medicare were higher for OTPs located in counties with higher percentages of Non-Hispanic White Medicare beneficiaries. Conclusions: We found high rates of Medicare acceptance among OTPs in the first three years of the Medicare OTP benefit, suggesting increased access to OUD treatment via OTPs for Medicare beneficiaries. While promising, results indicate potential geographic and racial/ethnic disparities in access to OTPs.