Please note: Things may change. Verify directly before making an enrollment decision.
Medicare Advantage Network Changes Already in Effect:
| Health System | State/Region | Medicare Advantage Change, as of 10/6/26 |
|---|---|---|
| Allina Health | MN | Out of network with Humana MA since 2025. |
| Aultman Health System | OH | Humana no longer in network; hospitals left the network in 2024, followed by physicians. |
| Avera Health | SD | Ended Humana MA participation in 2025 and Aetna MA participation in 2026. |
| Baylor Scott & White Health | TX | Out of network with Humana MA since 2025. |
| Bayhealth | DE | Ended Humana and Cigna MA contracts in 2025. |
| Blessing Health | IL/MO | Sharply narrowed MA participation. For 2026, generally in network with BCBS Illinois, Molina, UnitedHealthcare and certain retiree plans rather than all MA insurers. |
| Brookings Health System | SD | Stopped contracting with all Medicare Advantage plans beginning in 2024. |
| Brown University Health | RI | Hospitals and physicians are out of network with UnitedHealthcare MA. |
| Carson Tahoe Health | NV | Stopped accepting most MA plans during 2025; Prominence and Senior Care Plus were exceptions. |
| Centra Health | VA | Out of network with Humana MA since January 2026. |
| CHI St. Vincent / CommonSpirit Health | AR | Out of network with Arkansas Blue Cross Blue Shield MA since September 2026. |
| CommonSpirit Health hospitals | CO | Out of network with Humana MA since 2025. |
| Essentia Health | MN/ND/WI | Out of network with Humana MA since 2025. |
| Great Plains Health | NE | Stopped contracting with Medicare Advantage plans in 2025. |
| Iowa Specialty Hospitals & Clinics | IA | Narrowed MA participation in 2026; continues Aetna, MediGold, UnitedHealthcare and Wellmark BCBS while dropping other MA plans. |
| Johns Hopkins Medicine | MD/DC | Out of network with UnitedHealthcare MA since 2025. |
| Kettering Health | OH | Out of network with Humana and Devoted Health MA in 2026. |
| Kimball Health Services | NE | Out of network with all Medicare Advantage plans since Jan. 1, 2025. |
| Lehigh Valley Health Network | PA | Out of network with UnitedHealthcare MA since 2026. |
| LMH Health | KS | No longer accepts Aetna or Humana MA; continues to participate with selected other MA plans. |
| Mass General Brigham | MA | Most primary care providers are no longer in network with UnitedHealthcare or BCBS Massachusetts MA plans. |
| Mayo Clinic | MN + national locations | Out of network with most individual UnitedHealthcare and Humana MA plans beginning in 2026; exact plan/location matters. |
| Memorial Healthcare System | FL | Out of network with Florida Blue MA since 2025. |
| MercyOne | IA | Out of network with Humana MA since 2025. |
| Moffitt Cancer Center | FL | Out of network with Aetna MA since late 2025 and Humana MA since July 2026. |
| Montrose Regional Health | CO | Ended Humana MA contract in 2026. |
| Mount Sinai Health System | NY | Out of network with Anthem MA since January 2026. |
| MUSC Health | SC | Humana MA contract ended in 2025. |
| MultiCare | WA | No longer contracts with nongroup Medicare Advantage PPO plans in the Puget Sound region. |
| MyMichigan Health | MI | Out of network with Aetna Medicare Advantage since 2025. Some employer retiree plans have special out-of-network provisions. |
| NKC Health | MO | Narrowed MA participation. Cigna MA ended in 2026 and UnitedHealthcare MA is now out of network. Humana MA remains accepted. |
| North Memorial Health | MN | Ended Humana MA contract in 2025. |
| North Mississippi Health Services | MS | Out of network with UnitedHealthcare MA since 2025. |
| Norman Regional Health System | OK | Out of network with Aetna MA in 2026. UnitedHealthcare and Norman Regional reached a new agreement in September 2026, so UHC remains in network. |
| Ohio State University Wexner Medical Center / James Cancer Hospital | OH | Out of network with Anthem MA since 2025 and with individual Humana MA plans beginning Oct. 1, 2026. Humana Group Medicare remains in network. |
| Prairie Lakes Healthcare System | SD | Out of network with Humana MA since 2025. |
| Providence Clinical Network | CA | Out of network with UnitedHealthcare MA since January 2026. |
| Salem Health | OR | Out of network with Regence BCBS MA since 2025. |
| Sanford Health | MN | Dropped Humana MA in Minnesota in 2025. |
| Scripps Health | CA | Left Medicare Advantage provider networks in 2024 and continues to operate outside MA networks. |
| South County Hospital | RI | Out of network with Aetna MA. |
| Southwestern Health Resources / UT Southwestern–Texas Health network | TX | Out of network with Aetna MA since 2025. |
| Spartanburg Regional Healthcare System | SC | Out of network with Aetna MA since April 2026. |
| St. Charles Health System | OR | Ended participation with Humana, Health Net and Wellcare MA. Continues to accept Original Medicare and selected other coverage. |
| St. Luke’s Health System | ID | No longer accepts Humana MA as of 2026. |
| Trinity Health Michigan | MI | Out of network with Humana MA since 2025. |
| UNC Health | NC | Out of network with Humana, Wellcare and HealthSpring/former Cigna MA plans beginning in 2026. |
| Uniontown Hospital / WVU Medicine | PA | Out of network with Highmark PA and Highmark Wholecare MA since 2025. |
| University of Miami Health System | FL | Out of network with most UnitedHealthcare MA plans; Preferred Care Network has temporarily remained an exception. |
| Vanderbilt Health | TN | Out of network with BlueCross BlueShield of Tennessee MA. |
| VCU Health | VA | Out of network with most UnitedHealthcare MA since 2025; certain D-SNP coverage is an exception. |
| WakeMed | NC | Out of network with Humana MA for most affected members and with UnitedHealthcare MA. |
| White River Health | AR | Out of network with Aetna MA and UnitedHealthcare MA in 2026. |
Medicare Advantage Changes Announced for Late 2026 or 2027:
| Health System | State/Region | Announced Change, as of 10/6/26 |
|---|---|---|
| CarolinaEast Medical Center | NC | Medical center left BCBS North Carolina MA network July 2026; physicians remained in network. UnitedHealthcare MA scheduled to become out of network at the end of 2026. |
| Endeavor Health | IL | Aetna Medicare Advantage scheduled to become out of network Jan. 1, 2027. |
| Fairview Health Services | MN | Will stop scheduling patients with UnitedHealthcare MA beginning Jan. 1, 2027. |
| Genesis HealthCare System | OH | Has notified Aetna, UnitedHealthcare, Medical Mutual and CareSource that its MA contracts will end after 2026 unless new agreements are reached. |
| Lee Health | FL | UnitedHealthcare MA scheduled to become out of network Jan. 1, 2027. |
| NCH / Naples Comprehensive Health | FL | Wellcare and HealthSpring MA scheduled to become out of network after 2026. |
| NewYork-Presbyterian | NY | Still in negotiation. UnitedHealthcare MA coverage has been extended through Oct. 31, 2026. If no new agreement is reached, most UHC MA coverage becomes out of network Nov. 1. |
| Oregon Health & Science University (OHSU) | OR | Will no longer be in network with Regence BCBS Medicare Advantage beginning in 2027. Commercial Regence coverage is unaffected. |
| Sentara Health | VA | Negotiations with Anthem ended without agreement Oct. 5, 2026; Anthem MA is scheduled to become out of network Jan. 1, 2027. |
| St. Anthony Regional Hospital | IA | Aetna MA scheduled to become out of network after 2026. |
| University of Miami Health System | FL | UnitedHealthcare’s Preferred Care Network MA plan is scheduled to become out of network in 2027 if a new agreement isn’t reached. |
Hospitals reported to be in negotiations with Medicare Advantage Plans:
| Health system | State | What is still unsettled as of 10/6/26 |
|---|---|---|
| NewYork-Presbyterian | NY | Still negotiating with UnitedHealthcare. Current in-network coverage has been extended through Oct. 31, 2026; most UHC Medicare Advantage coverage becomes out of network Nov. 1 if no agreement is reached. (NewYork-Presbyterian) |
| AdventHealth | Multiple states | UnitedHealthcare has terminated its contract effective Jan. 1, 2027, but AdventHealth says the parties are still working toward a new agreement. The potential change includes affected UHC Medicare Advantage coverage. (AdventHealth) |
| USA Health | AL | UnitedHealthcare negotiations have been extended. Without a new agreement, UHC commercial and Medicare Advantage members will lose in-network access at USA Health hospitals beginning in November 2026. (USA Health) |
| Genesis HealthCare System | OH | Has given termination notice to Aetna, UnitedHealthcare, Medical Mutual and CareSource MA plans for the end of 2026 unless new agreements are reached. (Becker’s Hospital Review) |
| University of Miami Health System | FL | Most UHC MA coverage is already out of network, but its Preferred Care Network arrangement remains temporarily in place and could end in 2027 without a new agreement. (Becker’s Hospital Review) |
| White River Health | AR | Remains in network with UHC Medicare Advantage through Dec. 31, 2026 while negotiations continue, but says it currently expects to be out of network Jan. 1, 2027. (White River Health) |
Hospitals that have restored Medicare Advantage Participation:
| Health system | State | As of 10/6/26 |
|---|---|---|
| Bradley Medical Center | TN | Particularly good example. UnitedHealthcare had terminated its MA contract in August 2025. Bradley announced that it would rejoin UHC’s Medicare Advantage network beginning May 1, 2026. (Vitruvian Health) |
| UConn Health | CT | Returned to Aetna’s network for both commercial and Medicare Advantage members on March 1, 2026 after having gone out of network when its prior contract expired. (Becker’s Payer Issues | Payer News) |
| ECU Health | NC | Reached a new multi-year agreement with UnitedHealthcare in August 2026 covering commercial, Medicare Advantage and Medicaid members, restoring full in-network access. (Becker’s Payer Issues | Payer News) |
| Memorial Hermann Health System | TX | Reached a new agreement with Blue Cross Blue Shield of Texas in April 2026 that restored Medicare Advantage participation after Memorial Hermann had been out of the MA network since Jan. 1. (Houston Chronicle) |
| Stamford Health | CT | Came within days of leaving UnitedHealthcare’s network, including MA, but reached a new agreement April 9 that preserved Medicare Advantage participation without interruption. (Stamford Health) |
Again, confirm with your own research. Change is a constant!
Keep in mind…
A hospital being “out of network” does not always mean you can never receive care there. PPO plans may provide out-of-network coverage, although your costs can be considerably higher. HMO plans generally offer much less flexibility outside their network, except for emergencies and certain protected circumstances.
Always know: Are you covered by PPO or HMO plan?
And emergency care is different: Medicare Advantage plans must cover emergency services regardless of whether the hospital is in the plan’s network.
The safest approach: Don’t rely only on an insurer’s online directory. Call your doctors and hospitals and your Medicare plan to confirm that each will be in network for your exact plan in 2027.
Q & A: Key to Your Decision – and Peace of Mind
As hospitals reassess their relationships with Medicare Advantage, patients and families need clear information to make confident decisions. The best defense is awareness — and partnership.
Check your coverage, ask questions, and share what you learn with others who may be confused by advertising noise. By law, tradional Medicare cannot advertise, but that does not mean it’s not a good option!
When care and insurance policies align according to personal needs, preferences and risk tolerance, patients can feel assured they have access to care with costs covered as they expect — no surprises!