Understanding the Comparison
This calculator estimates total annual costs for two common Medicare coverage paths: Original Medicare paired with Medigap Plan G and a standalone Part D plan, versus a typical Medicare Advantage plan with built-in drug coverage. Both paths require paying the standard Part B premium of $174.70/month.
Original Medicare with Medigap Plan G provides the most predictable costs. After paying the $240 annual Part B deductible, Medigap covers virtually all remaining gaps. Your costs are highly predictable regardless of how much healthcare you use. The tradeoff is higher monthly premiums.
Medicare Advantage plans offer lower monthly premiums and often include extra benefits like dental and vision. However, you pay copays each time you use services, and costs can vary significantly depending on your healthcare usage. The $8,850 out-of-pocket maximum provides protection against catastrophic costs, but reaching that maximum means spending substantially more than under the Medigap scenario.
Important: These are estimates based on national averages. Actual costs depend on your specific plan, location, health providers, and healthcare utilization. Use Medicare Plan Finder at Medicare.gov for the most accurate comparison of plans available in your ZIP code.
Written by
Dr. Patricia Wells
Medicare Benefits Researcher
Dr. Wells has spent 12 years analyzing Medicare costs, coverage gaps, and enrollment strategies to help seniors and their families make confident coverage decisions without overpaying.