What You Need To Know About Medicare Part C

Understanding Medicare Advantage Plans

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If you’re considering a Medicare Part C plan, also known as Medicare Advantage, you’re not alone! In fact, 28 million people are enrolled in a Part C plan in 2022, accounting for 45 percent of the total Medicare population.1 Is Medicare Part C ideal for your health care needs and budget? In this article, we’ll cover the different types of Medicare Part C plans, costs, coverage, and when to enroll (without pricey late enrollment penalties).

What Is Medicare Part C?

Medicare Part C, also called Medicare Advantage, is an alternative to Original Medicare. With Part C, you’ll receive the same Medicare Part A and Part B coverage, with added benefits such as hearing, vision, and dental. Many Medicare Part C plans also include prescription drug coverage (Medicare Part D).

Did You Know: Medicare Advantage (Medicare Part C) and Medicare Supplement (Medigap) plans may sound alike, but they are quite different. Our Medicare Part C vs. Medigap comparison breaks down the pros and cons of each plan.

Medicare Part C plans are offered by private insurance companies that contract with Medicare. While Medicare Advantage carriers must follow the rules set by Medicare, each insurance company can charge different out-of-pocket costs and have a specific set of rules for how you receive services. For example, each company sets its own rules for whether you need a referral to see a specialist or if you have to go to a specific network of doctors.2

Different Types of Medicare Advantage Plans

Medicare Advantage isn’t just one plan; there are several options. Keep in mind that not all plan types may be available in your area. These are five of the most common Medicare Advantage Plans:3
  1. Health Maintenance Organization (HMO) plans. HMO plans come with a group of in-network doctors, medical facilities, and other health care providers. HMO plans often require a referral to see a specialist.
  2. Preferred Provider Organization (PPO) plans. PPO plans allow you to see both in-network (preferred providers) and out-of-network providers. Seeing an out-of-network provider usually comes at a higher out-of-pocket cost.
  3. Private Fee-for-Service (PFFS) plans. With a PFFS plan, you can visit any provider, as long as they are eligible to receive payment from Medicare and agree to the plan’s terms and conditions of payment.
  4. Special Needs Plans (SNPs). SNPs provide benefits and services to people with specific diseases, certain health care needs, or limited incomes.
  5. Medical Savings Account (MSA) plans. These plans combine a high-deductible insurance plan with a medical savings account, which you can use to pay for health care costs.

How Do I Enroll in Medicare Advantage?

As we mentioned earlier, Medicare Part C plans are offered through private insurance companies that contract with Medicare. You won’t be automatically enrolled in a Medicare Advantage plan when you become eligible for Original Medicare.

Pro Tip: Visit the list of our top picks for Medicare Advantage plans to compare your options.

If you’re interested in a Medicare Part C plan, give yourself plenty of time to research and compare Medicare Part C carriers and pricing before the enrollment period. The number of Medicare Advantage plans available will depend on where you live. Use Medicare’s Plan Finder to see the available plans in your area and view star ratings for the overall plan quality and performance.

Medicare Advantage Enrollment Dates

Enrollment period Date Important details
Initial enrollment period When you first become eligible for Medicare Your initial Medicare enrollment period lasts for seven months, starting three months before you turn 65 and ending three months after the month you turn 65.
Medicare annual enrollment period Oct. 15 – Dec. 7 of each year You can join, switch, or drop a plan. This includes Medicare Advantage and Medicare Part D plans.
Medicare Advantage open enrollment period Jan. 1 – March 31 of each year If you're enrolled in a Medicare Advantage plan, you can switch to a different Medicare Advantage plan or to Original Medicare (and join a separate Medicare drug plan). You can only switch once during each open enrollment period.
Special enrollment periods (SEPs) During certain special circumstances and changes in your life4 Examples include moving to a skilled nursing facility or long-term care hospital. Rules about when you can make changes (and the type of changes) are different for each SEP.

From the pros: Avoid costly late enrollment penalties by following our valuable Medicare enrollment guide!

What Does Medicare Advantage Cover?

Think of Medicare Advantage as an all-in-one Original Medicare package. What’s covered under Medicare Part A and Part B is also covered under a Medicare Part C plan. The big difference? While Original Medicare does not cover prescription drugs, dental, vision, or hearing, many Medicare Part C plans offer some (or all) of these additional benefits. Medicare Part A, also known as hospital insurance, helps cover inpatient hospital care. This includes medication as part of your inpatient treatment, a semiprivate room, meals during your hospital stay, and short-term care at a skilled nursing facility (following a hospital stay).

Quick tip: Wondering why Original Medicare is split into two parts? Head over to our Original Medicare breakdown to find out why we have Medicare Part A and Part B.

Medicare Part B, also known as medical insurance, helps cover both medically necessary care and preventative services. Primary care physicians, specialists, home health services, durable medical equipment (DME), and screenings for diabetes, breast cancer, and colorectal cancer fall under Part B. For an in-depth look at what you need to know about Medicare Part B, visit our Medicare Part B cost, coverage, and enrollment guide. Remember, not all Medicare Advantage plans offer the same coverage. For example, some Part C plans may cover over-the-counter drugs and transportation to doctor visits, while others don’t. As you explore plan options, be sure to confirm what is included in the carrier’s Medicare Advantage plan.

What Is the Cost of Medicare Part C?

Your Medicare Advantage costs depend on several factors. A key factor is the insurance carrier you choose. This is because private insurance companies set their own plan pricing, so your monthly premium, out-of-pocket expenses, and deductible are directly linked to that specific carrier. For example, UnitedHealthcare’s Medicare Advantage plan pricing may differ from other carriers, such as Aetna or Blue Cross Blue Shield. Be sure to review the plan specs of several Medicare Advantage carriers — you may be surprised to find the same benefits at a lower cost! When you’re comparing Original Medicare and Medicare Advantage pricing, a standout piece of the Medicare puzzle is out-of-pocket expenses. With Original Medicare, there is no out-of-pocket limit. This can result in a major hit to your wallet. However, with Medicare Part C plans, each carrier sets an out-of-pocket plan limit. The average out-of-pocket cost for Medicare Advantage enrollees is $4,972 for in-network services and $9,245 for both in-network and out-of-network services (PPOs).5

Medicare Advantage Out-of-Pocket Maximum

Federal regulations require all Medicare Advantage carriers to set an out-of-pocket limit that cannot exceed:5
Medicare Parts A & B in-network services $7,550 maximum
Medicare Parts A & B in-network and out-of-network services combined $11,300 maximum
Medicare Part D $6,550 maximum
Your Medicare Part C plan premiums, deductibles, and services can change from year to year. If you join a Medicare Advantage plan, make sure to review these important annual plan notices:
  • Annual Notice of Change: By Sept. 30, you’ll receive a printed Annual Notice of Change from your Medicare Part C carrier. The document will include all changes to your Part C plan effective Jan. 1, such as updated coverage, costs, and service areas.
  • Evidence of Coverage: By Oct. 15, you’ll receive a plan notice with instructions on how to electronically access your Evidence of Coverage (or request a printed copy). The Evidence of Coverage details how much your plan costs and what the plan covers.

FYI: Medicare Advantage plan carriers can only make changes once a year, in January, to what you pay for the plan.

10 Important Facts About Medicare Advantage

  1. Medicare Part C plans must cover everything that Original Medicare (Part A and Part B) covers. Many Medicare Advantage plans may also include Medicare Part D prescription drug coverage.
  2. If you’re enrolled in a Medicare Part C plan, you’re still in the Medicare program and covered by Medicare’s rights and protections.
  3. Your Medicare Advantage plan may have a specific network of health care providers and facilities. Avoid costly out-of-network charges by staying in-network.
  4. Medicare Advantage plans can’t charge more than Original Medicare for certain services, like chemotherapy, dialysis, and skilled nursing facility care.
  5. Unlike Original Medicare, Medicare Part C plans have an annual out-of-pocket limit. Once you reach the limit, you’ll pay nothing for covered services.
  6. Some Medicare Advantage plans offer extra benefits that Original Medicare doesn’t cover, such as vision, hearing, dental, or fitness programs.
  7. Medicare Part C providers can join or leave the in-network plan at any time.
  8. Your Medicare Advantage plan may require a referral to see a specialist.
  9. Before you receive a hospital or medical service, your Medicare Part C insurance company must provide details on whether the service is covered and what your costs may be.
  10. If you have a Medicare Advantage plan, it’s illegal for anyone to sell you a Medigap plan unless you’re switching back to Original Medicare.
Are you sure you’re taking advantage of all your hard-earned Medicare benefits? Whether you’re a first-time Medicare recipient or someone who’s been in the program for years, learn how to make the most of your Medicare plan. Jeff Hoyt, editor-in-chief of SeniorLiving.org, shares the essential details in the video below.

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Senior Living is an online lead generator that helps connect consumers with licensed insurance agents. MEDICARE ADVANTAGE AND PDP: This site provides referrals to representatives of Medicare Advantage organizations and stand-alone PDP prescription drug plans that have Medicare contracts. Enrollment in any plan depends on contract renewal. The plans represented do not discriminate on the basis of race, color, national origin, age, disability, or sex. To learn more about a plan’s nondiscrimination policy, please contact the plan. For a complete list of available plans please contact 1-800-MEDICARE (TTY users should call 1-877-486-2048), 24 hours a day/7 days a week or consult www.medicare.gov. Generally, Medicare is available for people age 65 or older, younger people with disabilities and people with End Stage Renal Disease. You must have both Part A and B to enroll in a Medicare Advantage plan. Members may enroll in the plan only during specific times of the year. Some Medicare plans are not available in all areas, and costs, coverage, and benefits vary by location. MEDICARE SUPPLEMENT: Medicare Supplement insurance is available to those age 65 and older enrolled in Medicare Parts A and B and, in some states, to those under age 65 eligible for Medicare due to disability or End-Stage Renal disease. Medicare Supplement insurance plans are not connected with or endorsed by the U.S. government or the federal Medicare program. PRIVATE SITE: This is a non-government website, and is not endorsed by the Centers for Medicare & Medicaid Services (CMS), the Department of Health and Human Services (DHHS), or any other government agency. The purpose of this communication is to connect individuals with a licensed insurance agent. Contact will be made by an insurance agent or a phone representative who can connect you to a licensed insurance agent. AGREEMENT TO TERMS: If you use submit your information through this website, you agree to the Privacy Policy and Terms & Conditions linked below, and to be contacted by a licensed insurance agent or a phone representative who can help connect you to a licensed insurance agent in your area to help review your coverage and options. NOT ALL PLANS OFFERED: The licensed agent to whom you are connected may not offer all plans in your area. Any information provided is limited to those plans the licensed agent does offer in your area. To explore all plans, please contact Medicare.gov or 1-800-MEDICARE.

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Written By

Maureen Stanley

Writer & Editor

Maureen joined SeniorLiving.org with more than 10 years of experience writing in health, lifestyle, and nutrition for premium brands like General Mills, Westinghouse, and Bristol Myers Squibb. Her passion for empowering older adults is evident in coverage of topics like retirement, health… Learn More About Maureen Stanley

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