Yes, you can drop Medicare Part B at any time, but you must submit a written request (Form CMS-1763) to Social Security, and your coverage ends the month after you file; however, you may face a late enrollment penalty if you re-enroll later without other qualifying coverage, and you'll be responsible for 100% of costs while dropped.
To cancel Medicare Part B, you must submit a written request using Form CMS-1763 (Request for Termination of Premium Part A, Part B), either by mailing or faxing it to your local Social Security office, or by contacting them directly to arrange an appointment, with coverage ending the month after you file. It's crucial to consider potential late enrollment penalties and coverage gaps if you don't have other creditable coverage, as re-enrolling later could be costly.
If you change your mind about cancelling your coverage, you need to contact SSA before the date your coverage ends. Contact your local Social Security office. If you're dropping Part B and keeping Part A, we'll send you a new Medicare card showing you have only Part A coverage.
The official withdrawal of a Medicare Part B application using the CMS-1763 form can take up to 60 days to process, though sometimes it may be faster depending on the office workload. This delay can be problematic, especially if you need to submit a new application afterward to qualify for a Special Enrollment Period.
There are no ``penalties'' going back to original Medicare as you've always had Medicare even while in a Medicare advantage plan. Penalties are for those who disenroll from part b completely which you haven't done.
People leave Medicare Advantage (MA) plans due to difficulty accessing needed care (especially with worsening health), restrictive provider networks, complex prior authorization rules, and dissatisfaction with care quality, often feeling trapped as their health needs grow despite initial low costs and extra perks that become limiting. Issues with provider availability, network changes, and sometimes misleading marketing also drive disenrollment, pushing people back to Traditional Medicare for greater freedom, notes KFF.
In 2025, the standard Medicare Part B premium is $185 per month, with an annual deductible of $257, though higher-income earners pay more (Income-Related Monthly Adjustment Amount or IRMAA), and some with Social Security benefits pay less due to the "hold harmless" rule.
You can avoid paying Medicare Part B premiums by delaying enrollment if you have creditable employer coverage (your own or spouse's job with 20+ employees) until that coverage ends (within 8 months to avoid penalties), or by qualifying for a Medicare Savings Program (MSP) to have state/federal funds pay for it due to low income. Other ways to save include using HSA funds, appealing high Income-Related Monthly Adjustment Amounts (IRMAA) for life changes, or enrolling on time during your Initial Enrollment Period.
If you disenroll from Part B, it may result in gaps in your coverage, and you may incur a late enrollment penalty of 10% for each full 12-month period you don't have Part B but were eligible to sign up and you don't have other appropriate coverage in place.
Canceling Medicare Part B doesn't trigger an immediate penalty, but if you re-enroll later without qualifying for a Special Enrollment Period (SEP), you'll face a 10% late enrollment penalty for each full 12-month period you were eligible but didn't have Part B, which typically increases your monthly premium for life. You might also have significant out-of-pocket costs for medical services covered by Part B while you're unenrolled, so it's crucial to have other creditable coverage like employer plans to avoid these penalties and gaps.
You may refuse Part B without penalty if you have creditable coverage, but you have to do it before your coverage start date. Follow the directions on the back of your Medicare card if you want to refuse Part B.
Medicare Part B helps cover medical services like doctors' services, outpatient care, and other medical services that Part A doesn't cover. Part B is optional.
Here are some of the biggest Medicare mistakes to avoid:
It's possible to have Medicare and private insurance at the same time, especially if you're still working or covered by a spouse's employer plan. When you have both, one becomes the primary payer and the other pays second. For example, if your employer has fewer than 20 employees, Medicare may pay first.
Your CalPERS health coverage will automatically be canceled the first day of the month after you turn 65. Review Cancellation of CalPERS Health Coverage for information on reinstating your health coverage.
As of November 2023, the income limits for free Part B coverage are as follows: Individuals with an income at or below 135% of the FPL: Individuals whose income falls at or below this threshold may qualify for free Part B coverage. As of now, the income limit for an individual is $1,640 per month or $19,683 per year.
Starting in 2025, there is an annual limit on what you pay out-of-pocket for prescription medications through Medicare and Medicare Advantage prescription drug plans. All prescription medications, including specialty medications, covered by Part D plans are included under this cap.
Across the country, health systems report that Medicare Advantage's growing administrative burden — from denied authorizations to delayed reimbursements — has become unsustainable. Some hospitals have already ended their contracts; others are limiting participation to only a few select plans.
There's no penalty for leaving a Medicare Advantage plan itself. However, if you now need to enroll in a stand-alone Part D prescription drug plan, you could face a Part D late-enrollment penalty if you went without creditable drug coverage for 63+ days.