Medicare Supplement Plan A vs C vs D Comparison: Which Basic Coverage Plan Is Right for You?


Medicare Supplement Plan A vs C vs D Comparison: Which Basic Coverage Plan Is Right for You?

Plans A, C, and D represent different levels of Medigap coverage. This guide helps you compare them and choose the right option for your situation.

Quick Answer

PlanCoverage LevelBest For
Plan ABasicThose wanting minimal Medigap coverage
Plan CComprehensiveThose eligible before 2020 who want Plan F alternative
Plan DMid-tierThose who want more than Plan A but not full coverage

Use our Medicare Supplement Penalty Calculator to compare costs across all plans.

Detailed Guidance

Coverage Comparison Chart

BenefitPlan APlan CPlan D
Part A coinsurance + hospital costs
Part A deductible
Part B coinsurance (20%)
Part B deductible
Part B excess charges
Blood (first 3 pints)
Skilled nursing coinsurance
Foreign travel emergency

Plan A: The Basic Option

What It Covers:

  • Part A coinsurance and hospital costs (up to 365 additional days)
  • Part B coinsurance (20% of Medicare-approved amounts)
  • First 3 pints of blood

What It Doesn’t Cover:

  • Part A deductible ($1,676 in 2026)
  • Part B deductible ($240 in 2026)
  • Skilled nursing facility coinsurance
  • Foreign travel emergency
  • Part B excess charges

Average Premium: $50-90/month for age 65

Best For:

  • Those on a tight budget
  • People with few healthcare needs
  • Those who want to self-insure for deductibles
  • Medicaid dual-eligibles who need supplemental coverage

When Plan A Makes Sense:

  • You rarely visit the hospital
  • You can afford the Part A deductible if hospitalized
  • You want the lowest possible premium
  • You have other coverage that helps with deductibles

Plan C: Near-Comprehensive (Pre-2020 Enrollees Only)

Important: Plan C is only available if you were eligible for Medicare before January 1, 2020.

What It Covers:

  • Everything in Plan A
  • Part A deductible
  • Part B deductible
  • Skilled nursing coinsurance
  • Foreign travel emergency (80%)

What It Doesn’t Cover:

  • Part B excess charges

Average Premium: $170-220/month for age 65

Best For:

  • Those eligible before 2020
  • People who want near-complete coverage
  • Those who don’t want to worry about deductibles
  • Frequent healthcare users

Plan C vs Plan F:

  • Plan C doesn’t cover excess charges
  • Plan F covers everything Plan C does plus excess charges
  • Plan C premiums are typically 5-10% lower than Plan F

Plan D: The Middle Ground

What It Covers:

  • Everything in Plan A
  • Part A deductible
  • Skilled nursing coinsurance
  • Foreign travel emergency (80%)

What It Doesn’t Cover:

  • Part B deductible ($240 in 2026)
  • Part B excess charges

Average Premium: $110-150/month for age 65

Best For:

  • Those who want more than basic coverage
  • People concerned about hospital stays and skilled nursing
  • Those willing to pay the Part B deductible
  • Budget-conscious shoppers who want solid coverage

Plan D vs Plan G:

  • Plan D doesn’t cover Part B deductible or excess charges
  • Plan G covers both
  • Plan D premiums are typically 20-25% lower

Cost Analysis Example

Scenario: Age 65, Non-Tobacco, Average State

PlanMonthly PremiumPart A DeductiblePart B DeductibleAnnual Cost (Healthy)
Plan A$70$1,676 if hospitalized$240$840 + deductibles
Plan D$130$0$240$1,560 + $240 = $1,800
Plan C*$190$0$0$2,280

*Plan C only available to pre-2020 enrollees

If hospitalized once per year:

  • Plan A total: $840 + $1,676 + $240 = $2,756
  • Plan D total: $1,560 + $240 = $1,800
  • Plan C total: $2,280

Plan Selection Checklist

  • Determine your eligibility (Plan C pre-2020 requirement)
  • Assess your healthcare usage (hospitalizations, SNF needs)
  • Calculate your risk tolerance for deductibles
  • Get quotes for all available plans
  • Factor in the Part A deductible ($1,676) for Plan A
  • Factor in the Part B deductible ($240) for Plans A and D
  • Consider skilled nursing facility needs
  • Evaluate foreign travel coverage needs
  • Use our calculator for precise estimates

Frequently Asked Questions

Is Plan A worth buying?

Plan A is worth it if you’re on a tight budget and can handle the deductibles. It provides basic protection against the 20% Part B coinsurance, which can be substantial for expensive services.

Why would I choose Plan D over Plan G?

Plan D costs less per month than Plan G. If you’re healthy and don’t mind paying the Part B deductible and potential excess charges, Plan D can save you money.

Can I still get Plan C if I’m new to Medicare?

No. Plan C (and Plan F) are only available if you were eligible for Medicare before January 1, 2020. If you’re newly eligible, consider Plan G or Plan N instead.

Does Plan D cover skilled nursing?

Yes, Plan D covers the skilled nursing facility coinsurance (days 21-100), which can save you up to $209.50 per day in 2026.

What’s the difference between Plan D and Plan N?

Plan D covers more benefits (Part A deductible, SNF) but doesn’t have copays. Plan N has copays ($20 office, $50 ER) but doesn’t cover Part A deductible or SNF coinsurance. Plan N typically has lower premiums.