US Medicare First Bills Surprise Newcomers

Most Americans can enroll at 65 during a 7-mo window, choosing Parts A, B, C, and D, with current Part B premiums near $203.
A first Medicare bill can be much larger than expected because direct billing may include multiple months at once and sometimes earlier months of coverage.
Costs can climb further for higher-income enrollees or late sign-ups; current income surcharges begin above $109K for individuals and above $218K jointly.
If premiums are not withheld from benefits, monthly autopay, online account payments, or bank bill-pay can make these costs easier to manage each month.
Once coverage is set up, billing usually becomes more predictable; planning ahead, enrolling on time, and checking surcharges can help avoid an expensive first surprise.