You don't need supplemental insurance with Medicare, but it's highly recommended for most people to avoid huge out-of-pocket costs because Original Medicare (Parts A & B) has significant gaps like deductibles, coinsurance (20% often), and no limit on total spending, plus it doesn't cover dental, vision, or long-term care. Options like Medigap (Medicare Supplement) or Medicare Advantage (Part C) fill these gaps, offering financial predictability, but you choose one or the other. Your need depends on your health, savings, and risk tolerance, but nearly 2 out of 3 Medicare enrollees have some form of supplemental coverage for protection.
Supplemental insurance is advisable for those with Medicare to help cover out-of-pocket costs and gaps in coverage, offering financial protection for deductibles, coinsurance, and other medical expenses not fully covered by Medicare.
Here are some of the biggest Medicare mistakes to avoid:
Those out-of-pocket expenses can be manageable for some retirees. But for others — especially those with chronic conditions or those who have experienced major health events — the costs can be substantial. That's where Medicare supplemental coverage, also called Medigap, comes in.
With that in mind, in my opinion, the only type of life insurance that makes sense is term, which is good for a specific period of time. The premium is based on your age, gender, health, the death benefit desired, and the term.
The Medicare "3-Day Rule" requires a beneficiary to have a qualifying 3-day inpatient hospital stay (admission day counts, discharge day doesn't) before Medicare will cover services in a Skilled Nursing Facility (SNF) for rehabilitation or skilled care, though this rule can be waived in certain Medicare Advantage plans or through specific Accountable Care Organization (ACO) initiatives. Time spent in observation or the Emergency Department doesn't count towards these 3 days, but new demonstration projects and waivers are emerging to offer more flexibility for patients needing SNF care.
The most popular Medicare Supplement (Medigap) plan for new enrollees is Plan G, offering comprehensive coverage for nearly all Original Medicare costs (except the Part B deductible) at a predictable price, while Plan N is popular for lower premiums with some copays, and Plan F remains popular for those eligible for Medicare before 2020, covering everything, including the Part B deductible, notes Boomer Benefits.
If you choose to rely on Original Medicare alone to provide your health coverage, it is important to understand that Original Medicare (Parts A and B) is designed to cover only about 80% of your medical expenses.
The "best" Medicare plan for seniors depends on individual needs, but top-rated providers for Medicare Advantage (Part C) in 2026 include Humana, UnitedHealthcare, Aetna, and Blue Cross Blue Shield (BCBS), offering nationwide coverage, large networks, $0 premium options, and extra benefits like dental/vision, while Medigap (Medicare Supplement) plans like Plan F provide comprehensive Original Medicare cost coverage. Key factors are your doctors, prescriptions, budget, and preference for network flexibility (MA) or broad coverage (Medigap).
A "good" Medicare Supplement (Medigap) plan costs roughly $90 to $300+ per month, with popular plans like Plan G averaging around $140-$180 and Plan N being slightly cheaper ($110-$140), though costs vary significantly by location, age, tobacco use, and the specific plan chosen. High-coverage options (like Plan G) are pricier, while plans with copays (like Plan N) or high-deductible versions (like HD Plan G) offer lower premiums for less upfront coverage.
The Medicare 2-Midnight Rule is a Centers for Medicare & Medicaid Services(CMS) guideline for hospital admissions, stating that if a doctor expects a patient to need hospital care crossing at least two midnights, the stay generally qualifies for Medicare Part A inpatient payment;
Major Medicare changes for 2025 center on Part D prescription drug coverage, including a $2,000 annual out-of-pocket (OOP) spending cap, eliminating the coverage gap ("donut hole"), introducing monthly payment options for drug costs, and changes to D-SNP plan rules, all driven by the Inflation Reduction Act (IRA) to lower costs for beneficiaries.
If you joined a Medicare Advantage Plan during your Initial Enrollment Period, you can change to another Medicare Advantage Plan (with or without drug coverage) or go back to Original Medicare (with or without a drug plan) within the first 3 months you have Medicare Part A & Part B.
Medicare Advantage plans may offer more coverage than Original Medicare. For instance, many Medicare Advantage plans cover hearing aids, vision care, and dental care. Plus, many Medicare Advantage plans have $0 premiums or lower premiums than Medigap plans.
Dave Ramsey advises getting term life insurance only, covering 10–12 times your annual income for a 15–20 year term, to replace lost income if you die, while investing the savings in mutual funds instead of expensive whole life policies that mix insurance with investing. He recommends policies for income-earners and stay-at-home parents, avoiding riders and focusing on simplicity to become self-insured over time.
Suze Orman famously suggests many people need $5 million to $10 million to retire comfortably, especially for early retirement, to cover longevity, inflation, and healthcare risks, calling smaller amounts like $1 million or $2 million "nothing" against catastrophes. She emphasizes having 3 to 5 years of living expenses in cash reserves, separate from investments, and stresses a high savings rate (around 15%) and delaying Social Security for maximum benefit. While her large figures target a very secure, risk-averse retirement, she also advises on saving significantly more than typical projections suggest.
For $9.95 a month, Colonial Penn buys you one "unit" of guaranteed acceptance whole life insurance, where the actual death benefit amount depends on your age and gender (or age only in Montana). The older you are, the less coverage you get per unit, but premiums never increase, and no medical exams are required for ages 50-85.