Original Medicare is the federal government’s fee-for-service health insurance program for Americans aged 65 and older, as well as certain younger individuals with qualifying disabilities. It consists of two main pieces: Medicare Part A, which covers inpatient hospital care, and Medicare Part B, which covers outpatient medical services like doctor visits and preventive care.
When you enroll in Original Medicare, the federal government pays your healthcare providers directly for the services you receive. There are no private insurance networks to navigate, meaning you can see any doctor or specialist in Nevada—or anywhere else in the country—who accepts Medicare. However, Original Medicare is not comprehensive. It does not cover prescription drugs, it leaves you responsible for significant cost-sharing, and most dangerously, it has no cap on your annual out-of-pocket expenses.
If you are approaching age 65, understanding the mechanics of Original Medicare is the mandatory first step before you can accurately evaluate your private supplemental options, prescription plans, or alternative coverage routes.
Comparing Medicare plans in Nevada
Before examining the costs, it is vital to understand how Original Medicare functions structurally. The program operates on a fee-for-service model.
In a standard private health insurance plan, you usually deal with an insurance company that dictates which doctors you can see (the network) and requires you to get permission (prior authorization) before undergoing certain procedures. Original Medicare largely eliminates the insurance company middleman. The federal government sets a fixed price for every medical service. If a doctor agrees to accept that fixed price—known as accepting Medicare assignment—they treat you, bill the government, and the government pays its share directly. You are then billed for whatever cost-sharing (deductibles or coinsurance) remains.
Because the program is national, your Original Medicare card works the exact same way at a rural clinic in Elko, Nevada, a major hospital in Las Vegas, or a specialized cancer center in Texas.
Original Medicare is explicitly divided into two distinct components: Part A and Part B. Each has its own rules for eligibility, its own monthly premiums, and its own cost-sharing structures.
Medicare Part A is designed to act as your catastrophic inpatient insurance. If you are admitted to a medical facility for intensive, overnight care, Part A pays the bulk of the room, board, and nursing costs.
Part A covers the major expenses associated with inpatient care, including:
One critical rule regarding Part A coverage is inpatient admission status. Part A only covers your hospital stay if a doctor formally admits you as an inpatient. If you are kept in the hospital overnight under “observation status” to monitor your condition, you are technically considered an outpatient. In that scenario, your stay falls under Medicare Part B, which has entirely different billing rules and will not qualify you for subsequent coverage in a Skilled Nursing Facility.
The vast majority of Americans do not pay a monthly premium for Medicare Part A. If you or your spouse worked and paid Medicare taxes for at least 40 calendar quarters (roughly 10 years) over your lifetime, you earn premium-free Part A. If you do not have the required work history, you can still buy into Part A, but you will pay a substantial monthly premium set annually by the Centers for Medicare & Medicaid Services (CMS).
The cost-sharing structure of Part A is uniquely complex. Unlike standard health insurance that features a single annual deductible, Part A utilizes benefit periods.
A benefit period begins the day you are admitted to a hospital or skilled nursing facility as an inpatient. The benefit period ends when you have gone 60 consecutive days without receiving any inpatient hospital care or skilled nursing care.
When you are admitted, you must pay the Part A deductible before Medicare pays anything. If you are discharged and then readmitted 65 days later, a new benefit period begins, and you must pay that full deductible all over again. Because of this structure, it is entirely possible to pay the Part A deductible two or three times in a single calendar year if you have recurrent health issues.
Beyond the deductible, Part A requires you to pay daily copayments if your hospital stay extends beyond 60 days. These copayments escalate significantly for days 61 through 90. If your stay extends beyond 90 days, you must begin using your “lifetime reserve days,” which carry an even higher daily copayment. Once those lifetime reserve days are exhausted, you are responsible for 100% of all hospital costs.
While Part A handles the hospital room, Medicare Part B handles almost everything else. Part B is your day-to-day medical insurance, covering the services of physicians, outpatient procedures, and medical equipment.
Part B coverage is extensive. It includes:
Unlike Part A, Medicare Part B is not free for anyone. Almost every enrollee pays a standard monthly premium. This premium is typically deducted automatically from your Social Security check if you are already claiming retirement benefits. If you are not yet claiming Social Security, you will receive a quarterly bill from Medicare.
If your modified adjusted gross income (MAGI) from two years prior exceeds a certain threshold established by the IRS, you are required to pay a surcharge on top of the standard premium. This is called the Income-Related Monthly Adjustment Amount (IRMAA). IRMAA operates on a sliding scale; the higher your income, the more you pay for Part B.
Part B has a simpler cost-sharing structure than Part A, but it carries a far greater financial risk.
First, you must meet an annual Part B deductible. This deductible is relatively low and resets every January 1st. You pay 100% of your outpatient medical costs until this threshold is met.
Once the deductible is met, you enter the coinsurance phase. For almost all Part B covered services, Medicare pays 80% of the approved cost, and you are responsible for the remaining 20%.
The 20% coinsurance for Part B is the most dangerous financial aspect of Original Medicare. There is no maximum out-of-pocket (MOOP) limit. Your 20% responsibility never stops, no matter how catastrophic your medical bills become.
If you visit a doctor for a minor issue and the approved cost is $100, your 20% responsibility is an affordable $20. But if you require extensive outpatient cancer treatments, such as radiation or chemotherapy administered in a clinic, the costs can escalate into the hundreds of thousands of dollars. If your outpatient medical bills total $100,000 for the year, your 20% coinsurance leaves you liable for $20,000 out of pocket.
When you see a doctor under Original Medicare, you must be aware of their contract status with the program.
While Original Medicare provides a robust foundation for major medical events, it leaves significant, everyday healthcare needs entirely uncovered. Relying solely on Original Medicare means you have no coverage for the following:
Because of the unlimited financial exposure of the 20% coinsurance and the total lack of prescription drug coverage, very few people in Nevada rely on Original Medicare alone. Instead, enrollees use one of two primary pathways to protect their health and finances.
| Feature | Original Medicare Alone | Original Medicare + Medigap + Part D | Medicare Advantage (Part C) |
|---|---|---|---|
| Provider Network | Any provider accepting Medicare nationwide. | Any provider accepting Medicare nationwide. | Restricted to carrier HMO or PPO networks. |
| Out-of-Pocket Maximum | None. Unlimited financial risk. | Capped by the structure of the Medigap plan (often zero risk after premiums). | Yes. Capped annually, varying by specific plan. |
| Prescription Drugs | Not covered. | Covered by a separate Part D policy. | Typically included in the plan. |
| Dental, Vision, Hearing | Not covered. | Rarely covered. Requires separate policies. | Often included as extra benefits. |
| Monthly Premium Focus | Part B premium only. | Part B premium + Medigap premium + Part D premium. | Part B premium + Advantage premium (many are $0). |
The most comprehensive way to protect yourself while keeping the structural advantages of Original Medicare is to purchase a Medicare Supplement insurance policy, commonly known as Medigap.
Medigap policies are sold by private insurance companies. Their sole purpose is to pay the out-of-pocket costs that Original Medicare leaves behind—specifically the Part A deductibles, the Part B 20% coinsurance, and in some cases, excess charges and foreign travel emergencies.
Because you remain on Original Medicare, you keep your nationwide access to any doctor who accepts Medicare. The Medigap plan simply functions as a secondary payer. If Medicare approves the claim, the Medigap plan is legally obligated to pay its portion.
To complete this pathway, you must also purchase a standalone Medicare Part D prescription drug plan to ensure you have coverage for pharmacy medications. This route provides highly predictable costs and the freedom to choose your providers, but requires you to pay multiple monthly premiums (Part B + Medigap + Part D).
The alternative to supplementing Original Medicare is to replace its delivery system entirely by enrolling in a Medicare Advantage plan (Part C).
If you choose this route, you are still technically enrolled in the Medicare program and must continue paying your Part B premium. However, your health coverage is now administered by a private insurance company contracted by the government. The private carrier bundles Part A, Part B, and usually Part D prescription drug coverage into a single plan.
Nevada’s Medicare Advantage market is robust, with 105 distinct plans available across the state from major carriers including Aetna Medicare, Alignment Health Plan, Anthem Blue Cross and Blue Shield, Champion Health Plan, HealthSpring, Humana, Kaiser Permanente, Prominence Health Plan, SCAN Health Plan, Select Health, UnitedHealthcare, and Wellcare.
These plans operate much like employer health insurance. You will navigate carrier networks, primarily using HMO (Health Maintenance Organization) or PPO (Preferred Provider Organization) structures. For instance, plans like the AARP Medicare Advantage from UHC NV-0007 (PPO) or the AARP Medicare Advantage Essentials ValueRx NV-5 (HMO-POS) require you to understand whether your local providers are in-network to secure the lowest costs.
Medicare Advantage plans must, by law, include an annual maximum out-of-pocket limit, protecting you from the unlimited risk of Original Medicare. They also frequently bundle extras like routine dental, vision, and gym memberships. The trade-off is managed care: you must adhere to the carrier’s network restrictions and prior authorization rules.
Medicare enrollment is governed by strict statutory windows. Missing your deadline can result in permanent financial penalties and months-long gaps in healthcare coverage.
If you are already receiving Social Security retirement benefits or Railroad Retirement Board benefits before you turn 65, you do not need to take action. The government will automatically enroll you in Original Medicare Parts A and B, and your red, white, and blue Medicare card will arrive in the mail roughly three months before your 65th birthday.
If you are not yet claiming Social Security, you must proactively enroll in Medicare yourself. Enrollment is processed through the Social Security Administration, either online at SSA.gov, by phone, or in person at a local Nevada Social Security office.
Your first opportunity to enroll in Original Medicare is your Initial Enrollment Period. This is a seven-month window uniquely tied to your birthday. It includes:
To ensure your coverage begins on the first day of your birth month, you should ideally complete your enrollment during the three months prior to your 65th birthday.
If you miss your IEP, you can enroll during the General Enrollment Period, which runs from January 1 through March 31 every year. Coverage for those enrolling during the GEP will generally begin on the first day of the month after you sign up. However, utilizing the GEP often means you will be subject to late enrollment penalties.
Many Nevada residents choose to continue working past age 65. If you or your spouse are actively employed and you are covered by an employer’s group health plan that covers 20 or more employees, you can safely delay enrolling in Medicare Part B without penalty.
This is known as having “creditable coverage.” Once you or your spouse eventually retire, or you lose that employer coverage, you will be granted an 8-month Special Enrollment Period (SEP) to enroll in Part B.
Important Note: COBRA coverage and retiree health plans do not count as active employer coverage. If you transition to COBRA at age 65, you must enroll in Medicare Part B immediately to avoid lifetime penalties.
Medicare aggressively discourages late enrollment to prevent people from waiting until they are sick to buy insurance.
Original Medicare functions identically everywhere, but the local landscape deeply affects how Nevada residents should approach their supplemental choices.
If you live in dense urban areas like Las Vegas, Henderson, or Reno, you have access to highly saturated provider networks. In these areas, Medicare Advantage HMOs and PPOs are incredibly popular and effective because there are plenty of in-network hospitals, specialists, and primary care physicians to choose from.
Conversely, if you live in rural Nevada—such as Nye County, Elko County, or White Pine County—provider scarcity is a genuine concern. In rural areas, restrictive networks can force you to travel hundreds of miles for in-network specialist care. For residents in these regions, staying on Original Medicare and adding a Medigap policy is often the safest choice, as it guarantees you can see any doctor or hospital nationwide without asking an insurance company for a network exception.
If you have other insurance alongside Original Medicare—such as an employer group plan, veterans’ benefits, or a retiree plan—rules determine which insurance pays first. This is called Coordination of Benefits.
Original Medicare is the chassis upon which the rest of your retirement healthcare is built. Your next steps depend entirely on your risk tolerance, your budget, and how you want to access care.
Step 1: Ensure you are enrolled. Determine your enrollment timeline. If you are retiring at 65, enroll during your Initial Enrollment Period. If you are continuing to work for a large employer, confirm your coverage is creditable and decide whether to delay Part B.
Step 2: Choose your protection pathway. Do not rely on Original Medicare alone. You must actively choose how to cap your financial risk and secure prescription drug coverage.
Speak with a licensed producer to compare your Medigap, Part D, and Medicare Advantage options based on your specific doctors and prescriptions.
Get a Free ConsultationWe do not offer every plan available in your area. Any information we provide is limited to those plans we do offer in your area. Please contact Medicare.gov or 1–800–MEDICARE to get information on all of your options.