CalPERS is removing two UnitedHealthcare Basic health plans for 2027, creating a carrier decision for households that pair a non-Medicare family member with a Medicare retiree under one company. UnitedHealthcare’s Group Medicare Advantage plan remains available, but a combination family cannot keep that Medicare plan and a UnitedHealthcare Basic plan that no longer exists. The practical disruption is therefore concentrated in mixed-eligibility households, where preserving doctors may require changing both sides of the family’s coverage.
The Basic-plan exit breaks UnitedHealthcare combination coverage
CalPERS says SignatureValue Alliance HMO and SignatureValue Harmony HMO leave the portfolio on January 1, 2027. The removal applies to the non-Medicare Basic plans. UnitedHealthcare Group Medicare Advantage remains, a distinction that prevents the change from being described as a complete UnitedHealthcare departure from CalPERS.
A combination plan covers family members under Basic and Medicare arrangements with the same carrier. Once the UnitedHealthcare Basic side disappears, CalPERS says affected combination members must find a carrier offering both forms of coverage. Available pairings can include Anthem, Blue Shield, Kaiser, Sharp, PERS Gold or PERS Platinum, but actual choices depend on the member’s eligibility ZIP code and local service area.
CalPERS attributed the decision to UnitedHealthcare’s proposed 2027 Basic premiums, which the retirement system called high and unsupported by its review. The agency’s preliminary premium report places the removal within a larger annual negotiation over rates, plan availability and network access. That record makes the exit a purchaser decision by CalPERS, not a withdrawal of the Medicare product by UnitedHealthcare.
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Administrative transfers protect enrollment, not every provider relationship
Members who make no election will not simply become uninsured. CalPERS will administratively transfer them to another available plan selected partly around primary-care continuity. The destination varies by county, ZIP code and current plan type. A household’s fallback may therefore be different from the carrier it would choose after comparing specialist networks, prescriptions, premiums and the needs of both Medicare and non-Medicare members.
The agency’s examples show why geography matters. Some UnitedHealthcare Alliance members will move to Sutter Health Plan where it is available, while members in excluded ZIP codes can be assigned to an Anthem option instead. For a combination household, Sutter may not work because it does not offer a Medicare plan for 2027, forcing a paired transfer to another company even if Sutter would preserve the Basic member’s medical group.
CalPERS added Sutter Health Plan in six Northern California counties to preserve access for many people using Sutter Health Medical Group. Pharmacy arrangements for those transfers are expected to remain through CVS, while behavioral-health networks run through Carelon. Those continuities are meaningful, but they do not guarantee that every physician, hospital, therapist or drug arrangement will carry over unchanged.
The agency’s annual plan-change page confirms that UnitedHealthcare Medicare remains in the portfolio while the Alliance and Harmony Basic plans exit. That split is the central financial and coverage fact. A Medicare retiree living alone may be able to keep the UHC Medicare plan; a retiree covering a younger spouse under a combination arrangement faces a carrier-level decision.
September tools turn the carrier decision into a network comparison
CalPERS will open its Search Health Plans tool on September 8, followed by open enrollment from September 14 through October 9. Targeted letters are scheduled for late August. The sequence gives affected households a short preparation period before elections begin, and it makes the member letter important because it identifies the administrative destination if no active choice is made.
Premium is only one side of the comparison. A lower monthly rate can be offset by losing a medical group, moving a prescription to a different formulary tier or changing the Medicare member’s specialist network. Combination families have to evaluate the pair as one household decision because CalPERS requires the Basic and Medicare components to remain with a carrier capable of providing both.
Continuity-of-care protections can allow treatment with an out-of-network provider for a limited period when a qualifying condition exists, but they are a transition mechanism rather than a permanent network promise. The new carrier decides eligibility under applicable rules. That makes an ongoing course of care a higher priority than a familiar plan name when households compare the 2027 combinations.
Retirees also need to separate CalPERS enrollment from Medicare enrollment. The CalPERS carrier election determines the group plan and paired Basic coverage, while Medicare Parts A and B eligibility remains federal. Changing the CalPERS carrier does not cancel Medicare itself, but it can replace the Medicare Advantage network, member card, prior-authorization rules and drug arrangement attached to the group option.
The removal does not cancel coverage on August 16 or require an immediate switch. It sets up a January 1 change governed by the fall enrollment calendar, with automatic transfer as the backstop. CalPERS’ own record shows the real tradeoff: the system rejected UnitedHealthcare’s proposed Basic rates, but some Medicare families must now absorb the time and possible provider disruption needed to move both halves of their coverage to a different carrier.
Disclosure: This article was produced with AI assistance and reviewed by The Money Overview editorial team.
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