Medicare Advantage enrollees who rely on Ohio State University’s Wexner Medical Center for cancer treatment face a hard deadline. Effective October 1, 2026, multiple Humana Medicare Advantage plans will be out-of-network with OSUWMC, ending a partnership that began in 2020. The split covers Humana Gold Plus variants, HumanaChoice, and other products, and it will force affected patients to either absorb higher out-of-pocket costs or find a new cancer center mid-treatment.
Why the Humana-OSUWMC split hits cancer patients hardest
The October 1 exit date lands in the middle of a calendar year, not during Medicare’s annual enrollment period. That timing matters because Medicare Advantage members who chose their plan partly based on OSUWMC’s in-network status have limited options to switch coverage outside of open enrollment windows. Patients receiving active oncology treatment, including chemotherapy cycles, radiation courses, or post-surgical follow-up, cannot simply pause care while sorting out insurance logistics.
The 2020 agreement between Ohio State and Humana had brought OSU facilities and OSU Physicians into Humana’s Medicare Advantage network across HMO, PPO, and PFFS plan types, according to a prior OSU announcement. That deal gave Humana enrollees access to one of Ohio’s largest academic medical systems, including its NCI-designated cancer program. The upcoming reversal strips that access for every covered plan type simultaneously, creating a cliff for anyone whose oncologist or radiation specialist practices at OSUWMC.
A reasonable working hypothesis is that the contract fell apart over reimbursement rates, a pattern seen repeatedly when large health systems and Medicare Advantage insurers fail to reach renewal terms. If that is the case, patient volume currently flowing through OSUWMC’s cancer program on Humana plans would likely shift to competing Ohio cancer centers within months, a change that could show up in aggregated claims data or hospital discharge records. Neither institution has publicly disclosed the specific reason for the non-renewal, so the reimbursement explanation, while plausible, is not confirmed and should be treated as speculation rather than fact.
What OSUWMC’s insurance page and Ohio rules confirm
The clearest documentation comes from OSUWMC itself. The medical center’s official list of accepted insurance plans names Humana Gold Plus variants and HumanaChoice among the products moving to out-of-network status and specifies the effective date of October 1, 2026. That page is the primary source patients can check to verify whether their specific Humana Medicare Advantage plan will still be in-network after that date…