Plan G costs an average of $220 per month at age 65 compared to $171 for Plan N, a $49 monthly gap that widens to $58 by age 75. The core trade-off is coverage depth versus premium savings: Plan G eliminates cost-sharing at the point of care, while Plan N shifts some of that risk back to the enrollee through copays and unprotected excess charges.
The two plans diverge on three specific points. Plan G covers Part B excess charges, which providers can bill at up to 15% above Medicare-approved rates. Plan N does not cover those charges. Plan N also requires a copay of up to $20 per doctor visit and up to $50 per emergency room visit (waived if the ER visit leads to hospital admission), while Plan G has none. Everything else these plans cover is identical.



