A Look at 1115 Waiver Evaluations for Medicaid Payments to Institutions of Mental Disease (IMD) for Substance Use Disorder - Summary - MDSpire

A Look at 1115 Waiver Evaluations for Medicaid Payments to Institutions of Mental Disease (IMD) for Substance Use Disorder

  • By

  • Heather Saunders

  • July 9, 2026

  • 0 min

Share

Objective:

To examine findings from the first available summative evaluations for SUD IMD waivers.

Approach:
  • SUD IMD Waivers Overview: SUD IMD waivers allow states to receive federal Medicaid funds for short-term stays in IMDs, aiming to improve SUD identification and access to care.
Key Findings:
  • As of April 2026, 38 states and D.C. had approved SUD IMD waivers, with most initial waivers approved between 2016 and 2020.
  • Early evaluations indicate improved access to SUD treatment, although isolating waiver effects is complicated by various factors.
Interpretation:

Summative evaluations suggest increases in SUD residential and inpatient care, along with growth in community-based care and access to medications for opioid use disorder.

Limitations:
  • Evaluation periods overlapped with major disruptions in SUD treatment and Medicaid policy, complicating the isolation of waiver effects.
Conclusion:

The evaluations highlight challenges in the implementation of SUD IMD waivers.

Original Source(s)

Related Content