Best Insurance For Health Over 65: Medicare Parts A–D, Medigap and Advantage Comparisons

Turning 65 triggers one of the most important insurance decisions most Americans face: enrolling in Medicare and choosing whether to add a Medicare Advantage (MA) plan or a Medigap (Medicare Supplement) policy. This guide — focused on U.S. buyers (examples from Phoenix, AZ; Miami, FL; and Chicago, IL) — compares Medicare Parts A–D, Medigap, and Medicare Advantage so you can pick the best insurance for health over 65.

Quick note: always confirm costs and plan details on your local Medicare Plan Finder. Federal and private plan costs change yearly.

What each option is (fast overview)

• Medicare Part A (Hospital Insurance) — covers inpatient hospital stays, skilled nursing facility care, hospice and some home health. Many people pay $0 premium if they worked 40 quarters; there is an inpatient deductible per benefit period.
• Medicare Part B (Medical Insurance) — covers physician visits, outpatient care, preventive services, and durable medical equipment. Part B has a standard monthly premium and annual deductible.
• Medicare Part D (Prescription Drug Plans) — optional drug coverage sold by private insurers. Costs depend on the chosen plan, formularies and pharmacy network.
• Medicare Advantage (Part C) — private plans that bundle Parts A & B (and usually D), sometimes with additional benefits (dental, vision, fitness, telehealth). Premiums range from $0 to $200+ depending on area and benefits.
• Medigap (Supplement) — private policies (Plans A–N) that supplement Original Medicare by covering coinsurance, copays and some deductibles. You must keep Original Medicare (Parts A & B) to use Medigap.

Key Medicare costs (U.S. averages, 2024)

• Part A inpatient deductible: $1,600 per benefit period (2024).
• Part B standard premium: $174.70/month (standard premium for most enrollees in 2024).
  (Source: Medicare.gov — Medicare costs at a glance)
  https://www.medicare.gov/what-medicare-covers/your-medicare-costs/medicare-costs-at-a-glance

For Part D and Medicare Advantage the national averages and plan counts change each year. Many Medicare Advantage plans offer $0 monthly premiums; average premiums can be very low because insurers often offset premium with narrower networks and prior authorization rules. (See Kaiser Family Foundation discussion of Medicare Advantage growth and plan features.)
https://www.kff.org/medicare/issue-brief/medicare-advantage-in-2024-enrollment-and-changes/

Medigap premiums vary widely by age, gender, zip code and underwriting method. Nationwide comparison services show typical monthly Medigap Plan G premiums for a 65-year-old often range roughly $120–$300+ depending on location and insurer (smoking status and underwriting applied). (See eHealth and other Medigap market reports for local quotes.)
https://www.ehealthinsurance.com/medicare/medigap/medigap-plan-g-costs

Head-to-head: Medicare Parts A–D vs Medicare Advantage vs Medigap (summary table)

Which is better in specific locations?

• Phoenix, AZ — Medicare Advantage market is very competitive. UnitedHealthcare, Humana and Aetna often list $0–$25 premium MA plans with extra benefits (fitness, telemedicine). If you value low premium + extras and accept networks, MA is common here. Check local plan networks — provider access can vary widely.
• Miami, FL — Florida traditionally has high Medigap enrollment and many Medigap carriers (Blue Cross Blue Shield of Florida, Cigna) offering Plan G and Plan N. A 65-year-old non-smoker may expect Medigap Plan G quotes roughly $150–$260/month depending on insurer and rating method.
• Chicago, IL — Mixed market. MA plans (Blue Cross and Blue Shield of Illinois, Humana) often offer $0-premium options; Medigap Plan G premiums for 65-year-olds commonly fall in $140–$280/month ranges.

Note: These are illustrative market ranges. For exact pricing by company and ZIP code, use Medicare.gov Plan Finder or insurer quote pages.

Pros and cons — how to pick

• Choose Original Medicare + Medigap + Part D if you:
  • Want nationwide provider access and predictable out-of-pocket costs.
  • Travel frequently or winter in different states.
  • Prefer fee-for-service flexibility with less prior authorization.
• Choose Medicare Advantage if you:
  • Want lower (or $0) monthly premiums and bundled benefits.
  • Are comfortable using a network, with prior authorizations possible.
  • Want extras like dental, vision, over-the-counter allowances.
• Choose Part D whether you’re on Original Medicare or MA unless a MA plan includes drug coverage. Compare formularies and pharmacy networks carefully.

Practical steps to pick the best plan (local focus)

1. Gather current prescriptions, preferred doctors and planned procedures.
2. Use the Medicare Plan Finder for your ZIP code to compare MA and Part D plans and network providers.
3. If considering Medigap, get multiple written quotes for your ZIP code (BCBS plans, Cigna, Aetna, Mutual of Omaha are common providers).
4. Check star ratings and complaints for MA/Part D on Medicare.gov and call insurer customer service with sample claims scenarios.
5. Confirm total annual expected spend: premiums + expected out-of-pocket vs. worst-case catastrophic scenarios.

Real-company examples (how insurers position plans)

• UnitedHealthcare: widely available MA plans, many $0-premium options in metro areas (e.g., Phoenix, AZ), often with Part D included.
• Humana: national MA footprint; competitive $0–$20 premium plans in many counties; strong telehealth networks.
• Blue Cross Blue Shield (state plans): strong Medigap presence in states like Florida (BCBSFL) and Illinois (BCBSIL) with competitive Plan G/N quotes for seniors.
  For local pricing and plan details, always verify using insurer sites or Medicare Plan Finder.

Where to learn more and compare

• Medicare official costs and enrollment guidance — Medicare.gov: https://www.medicare.gov (costs and Plan Finder)
• Medicare Advantage and market trends — Kaiser Family Foundation (KFF): https://www.kff.org/medicare/issue-brief/medicare-advantage-in-2024-enrollment-and-changes/
• Medigap pricing trends and sample quotes — eHealth Medigap resources: https://www.ehealthinsurance.com/medicare/medigap/medigap-plan-g-costs

Helpful related guides on this site:

• Best Insurance For Health Coverage: Employer Plan vs Individual Marketplace—Which Is Right?
• Best Insurance For Health With Pre-Existing Conditions: Plans That Offer Strong Protections
• Best Insurance For Health That Includes Telemedicine and Virtual Care Benefits

Bottom line

• If you want predictable, nationwide coverage and don’t mind paying a higher monthly premium, Original Medicare + Medigap Plan G + Part D often yields the most predictable financial outcome for many high-utilizers (common in Miami and among frequent travelers).
• If you prefer low or $0 monthly premiums and value extras (telemedicine, dental) with local provider networks, Medicare Advantage can be the best fit in competitive markets like Phoenix and Chicago.
• Always run local, up-to-date quotes for your ZIP code — premiums and formularies change annually.

Sources

• Medicare.gov — Medicare costs at a glance (Part A/B amounts, 2024): https://www.medicare.gov/what-medicare-covers/your-medicare-costs/medicare-costs-at-a-glance
• Kaiser Family Foundation (KFF) — Medicare Advantage market trends and 2024 overview: https://www.kff.org/medicare/issue-brief/medicare-advantage-in-2024-enrollment-and-changes/
• eHealth — Medigap (Plan G) cost trends and sample pricing guidance: https://www.ehealthinsurance.com/medicare/medigap/medigap-plan-g-costs

(For the most accurate decision for your situation, gather local quotes and consult a licensed Medicare advisor or broker.)