Choosing the right Medicare coverage is one of the most important financial decisions retirees make. Medicare Advantage plans have grown significantly in popularity—enrolling more than 33 million Americans in 2024, according to KFF—but Original Medicare still serves as the backbone of senior healthcare coverage. Understanding how they differ can save you thousands of dollars annually.
What is Original Medicare?
Original Medicare consists of two parts: Part A (hospital insurance) and Part B (medical insurance). The federal government administers both directly. Beneficiaries can see any doctor or specialist nationwide who accepts Medicare—no referrals required.
Key stats:
Part A covers inpatient hospital stays, skilled nursing, and hospice care
Part B covers outpatient services, doctor visits, and preventive care
The standard Part B premium in 2024 is $174.70/month (CMS, 2024)
There is no annual out-of-pocket cap under Original Medicare
How Does Medicare Advantage Differ?
Medicare Advantage (Part C) is offered by private insurers approved by Medicare. These plans bundle Part A, Part B, and often Part D (prescription drug coverage) into a single plan.
Key stats:
Over 43% of all Medicare beneficiaries are now enrolled in a Medicare Advantage plan (KFF, 2024)
Most plans charge $0 in additional monthly premiums beyond the standard Part B premium
Plans typically include extras like dental, vision, and hearing coverage—benefits Original Medicare does not cover
Average out-of-pocket maximum under Medicare Advantage: $5,000–$8,000 annually
Which Plan Covers More?
Original Medicare offers broader provider access with no network restrictions. Medicare Advantage typically restricts coverage to in-network providers, which can limit flexibility—particularly for those who travel frequently or live in rural areas.
Are Prescription Drugs Covered?
Original Medicare does not include drug coverage. Beneficiaries must enroll separately in a standalone Part D plan. Most Medicare Advantage plans include built-in prescription drug coverage, simplifying the process considerably.