CMS Releases CY 2027 OPPS Proposed Rule with IOP and PHP Rates
The previous NABH alert on the OPPS proposed rule published on July 2, 2026 included the wrong per diem rates for IOP and PHP. This version published on July 6, 2026 updates those numbers to the current rates from Appendix A of the CY 2027 OPPS proposed rule.
On Thursday, July 2, the Centers for Medicare & Medicaid Services (CMS) issued the Calendar Year 2027 Hospital Outpatient Prospective Payment System (OPPS) and Ambulatory Surgical Center (ASC) Proposed Rule (CMS-1850-P), which includes updates to Medicare payment rates for behavioral health intensive outpatient programs (IOPs) and partial hospitalization programs (PHPs). CMS also released a rule summary.
NABH will closely review the OPPS proposed rule for PHP and IOP payment methodology and rate concerns, as well as other policy issues that might impact members. We will provide comments to CMS on the proposed rule, which are due August 31, 2026. Contact Sarah Steverman, VP of Quality and Regulatory Affairs, with questions.
PHP and IOP Per Diem Rates
Intensive Outpatient (3 services) CMHCs Hospital-based
2027 Rate $139.81 $349.52
2026 Rate $127.74 $319.38
Intensive Outpatient (4 or more services) CMHCs Hospital-based
2027 Rate $185.98 $464.99
2026 Rate $167.38 $418.45
Partial Hospitalization (3 services) CMHCs Hospital-based
2027 Rate $139.81 $349.52
2026 Rate $127.74 $319.38
Partial Hospitalization (4 or more services) CMHCs Hospital-based
2027 Rate $185.98 $464.99
2026 Rate $167.38 $418.45
NABH