D. Coordination With Other Coverage (54–71)
54. I am still working at [beneficiary's employer name or size, e.g., a company with more than 20 employees] and have employer health coverage — should I sign up for Part B now or wait?
55. My employer has fewer than 20 employees — will Medicare or my employer plan pay first?
56. I have retiree health coverage from my former employer — do I need Part B for my retiree plan to pay?
57. I'm on active-duty TRICARE coverage — do I need to enroll in Part B to keep it?
58. I have CHAMPVA coverage — do I need Part A and Part B to keep my benefits?
59. I have Medicaid — will my state pay my Part B premium, or do I need a Medicare Savings Program?
60. I have a Health Insurance Marketplace plan — what happens to my Marketplace subsidy once I qualify for Medicare?
61. When should I end my Marketplace coverage to avoid overlapping with my new Medicare coverage?
62. I have a Health Savings Account (HSA) and I'm about to turn 65 in [beneficiary's birth month] — when should I stop contributing to avoid a tax penalty?
63. I'm signing up for Medicare [number of months after Initial Enrollment ended] months after my Initial Enrollment Period ended — when should I stop my HSA contributions?
64. How does Medicare coordinate with my group health plan to decide which one pays first?
65. I'm under 65 with a disability and have coverage through a family member's employer with [number of employees] employees — which insurance pays first?
66. I have End-Stage Renal Disease and group health plan coverage — when does Medicare become my primary payer?
67. My group health plan coverage recently ended — who do I need to notify to update my coordination of benefits record?
68. I have coverage through the Department of Veterans Affairs (VA) — how does that work alongside Medicare?
69. I'm a federal retiree with an OPM annuity — how do I get my Part B premium deducted from my payments?
70. I have Federal Employee Health Benefits (FEHB) or Postal Service Health Benefits (PSHB) coverage — do I still need Medicare drug coverage?
71. I'm considering COBRA coverage after my job ends on [date employment ends] — would I be better off enrolling in Medicare Part B instead?
Source: "Medicare & You 2027," the official U.S. government Medicare handbook (CMS), as provided by the user."
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