State employee plans used Medicare-based caps to lower hospital spending; Oregon reports savings, Montana case shows trade-offs

At a February legislative committee meeting, Margaret Smith Issa, a program specialist with the Oregon Health Authority, described Oregon’s experience using a Medicare-based ceiling on hospital payments for state employee and educator health plans and said the policy has generated tens of millions of dollars in estimated savings since it took effect in late 2019 and early 2020.

The cap, established by state legislation, limits payments for inpatient and outpatient hospital services at participating hospitals to a percentage of Medicare rates, prohibits balance billing for covered services and exempts many small rural hospitals; Oregon also reported larger savings on outpatient facility charges than on inpatient services in the first years after implementation.

The details: Oregon implemented the hospital-payment limit under Senate Bill 1067 (2017) with follow-up technical changes in House Bill 2266 (2019). For network hospitals the law set a ceiling of 200% of Medicare payment; for nonnetwork hospitals the ceiling was 185% of Medicare. The cap applies only to facility payments for hospital services and excludes professional (physician) fees and services provided outside Oregon. The statute also lists exemption criteria for small and rural hospitals, including CMS-designated critical access hospitals and other hospitals identified in statute as “type A” and “type B,” which are defined by bed counts and distance from the next nearest hospital.

Why it matters: Oregon’s two large public-sector plans — the Oregon Educators Benefit Board (OEBB) and the Public Employees Benefit Board (PEBB) — cover roughly 300,000 people combined and represent about 15% of Oregon’s commercially insured population. The boards have a statutory target limiting annual plan cost growth to 3.4%; the Medicare-based cap was presented to committee members as a tool to help keep hospital-driven cost growth closer to that target.

Implementation and results: Smith Issa said the policy went into effect Oct. 1, 2019, for educators and Jan. 1, 2020, for state employees after a two-year onboarding window for carriers and third-party administrators (TPAs). She told the committee that no hospitals under contract left provider networks because of the cap: “No contracted hospitals left the network due to the payment cap.” Smith Issa also said initial inpatient savings were muted because some hospitals sought maximum payments up to the 200% Medicare ceiling for certain services (notably maternity and newborn care) until agency rules were clarified to ensure plans pay the lesser of billed charges, a contracted rate, or the statutory ceiling.

Oregon’s actuaries estimated more than $160 million in savings over the first two years after implementation; Smith Issa cited roughly $59 million in estimated savings in 2020 and around $112 million in 2021, with larger outpatient savings than inpatient. She told the committee that, by 2022, average inpatient payments at capped hospitals for the state plans were about 165% of Medicare and outpatient payments were higher relative to Medicare (figures reported by the plan). Smith Issa said carriers and TPAs maintained networks under the reduced payment levels and that most covered employees were unaware of the change in provider payment methodology.

Montana case study: A former Montana state plan administrator who led an earlier reference-based pricing effort described the state’s 2016 move to multiple-of-Medicare contracting for facility services and the operational steps taken to implement it. The Montana administrator told the committee that analysis showed hospitals accounted for roughly 43% of plan spend and that price — not utilization or intensity — drove cost growth: “Price is the issue, price is the problem.” Montana pursued direct contract amendments to a TPA’s provider network, targeted large acute-care hospitals that represented most utilization, and used an independent repricer and an independent data warehouse to reconcile payments and guard against spread pricing.

Montana reported faster reserve rebuilding and large fiscal gains after implementation. The administrator said the state’s plan moved from a projected deficit to an excess reserve position and enabled premium holidays and return of funds to the state in later years. She also described implementation lessons: include contract language that pays the lower of billed charges or a multiple of Medicare; anticipate services poorly benchmarked by Medicare (maternity, pediatrics) and set rules to handle them; hold plan funds separately so the plan can reconcile actual paid amounts; and communicate clearly with employees and unions to reduce disruption.

Limitations and open questions: Both speakers cautioned that Medicare-derived benchmarks have nuances — Medicare rates may not reflect typical commercial prices for services uncommon in Medicare’s population, and retroactive Medicare rate adjustments can require reprocessing of commercial claims unless the cap is tied to date-of-service rates. Smith Issa said the cap has not been shown to cause hospital closures in Oregon and that other pandemic-related and labor-cost pressures also affected hospital finances. The Montana administrator said Montana did not see hospital closures attributable to the program but noted reference-based contracting required sustained oversight; Montana later moved away from its program and returned to a standard PPO network under new leadership, an outcome the administrator said underlines the policy’s exposure to administrative and political changes.

Discussion at the committee: Committee members asked about exemption criteria for small hospitals, contract lengths, whether hospitals left networks, effects on member out-of-pocket liability and balance billing protections, and whether Medicaid (Oregon Health Plan) or other payers saw cost shifts. Smith Issa said balance billing is prohibited for hospitals paid under the cap and that the state excluded out-of-state hospitals because Oregon could not enforce balance-billing rules outside its borders. She said Oregon had not observed disproportionate effects on other commercial plans and that insulating members from surprise out-of-pocket charges was a legislative and contractual priority.

Next steps: Committee members probed operational details and data needs as they continue to study reference-based pricing options. The meeting record shows the panel planned further witnesses and discussion after a short break.