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California Sharp® SecureHorizons® Plan by UnitedHealthcare®

The Sharp SecureHorizons Plan (HMO) by UnitedHealthcare is a Medicare Advantage health maintenance organization (HMO) plan that includes benefits in addition to those covered under Original Medicare, including Part D prescription drug coverage.

This plan is available in San Diego County, California through a defined network of care providers. Specialist referrals are required with this plan.

Learn More

To learn more about UnitedHealthcare Medicare Advantage plans offered in your area, please visit and enter your ZIP code.

To learn more about Medicare Part D prescription drug coverage or to access related forms, please review the materials available on under Our Plans > Medicare Advantage Plans > What Do I Need to Know? > Medicare Advantage Plan Information and Forms.