Employees are offered medical insurance on a pre-tax basis, Retirees on a post-tax basis. To learn more about the plan, visit the link below. For information on claim coverage, contact your medical insurance provider. Kaiser-1.301.468.6000, CareFirst BCBS 1.888.417.8385 or United HealthCare 1.800.638.0014. Questions related to enrollment should be referred to the Benefits Team.