How to Sign Up for Medicare
How to Apply, Add Part B, Track Your Medicare Number, and Confirm Your Part A and Part B Start Dates
How to Sign Up for Medicare
If you are getting close to age 65, retiring, leaving employer coverage, or trying to add Medicare
Part B, one of the first questions is simple: how do I sign up for Medicare?
For most people in Las Vegas, Henderson, North Las Vegas, and throughout Nevada, the
Medicare sign-up process starts with Social Security. You sign up for Original Medicare Part A
and Part B through Social Security, not through a private insurance company. After you have
your Medicare number and your Part A and Part B start dates, you can review your next
coverage choices, including Medicare Advantage, Medicare Supplement, and Part D prescription
drug plans available in your Nevada ZIP code.
Step 1: Know When You Should Sign Up for Medicare
Most people first become eligible for Medicare at age 65. Your first Medicare enrollment window
is called your Initial Enrollment Period. It generally starts 3 months before the month you turn
65, includes your birthday month, and continues for 3 months after your birthday month.
If you are already receiving Social Security benefits before age 65, you may be enrolled in
Medicare automatically. If you are not receiving Social Security yet, you usually need to actively
sign up for Medicare through Social Security.
If you are still working or covered through a spouse's active employer group health plan, your
timing may be different. Some people delay Part B because they have current employer
coverage. Before delaying Part B, confirm that your coverage allows you to wait without creating
a late enrollment penalty or coverage gap.
Step 2: Decide What You Are Signing Up For
Before you apply, decide which Medicare action fits your situation:
- Part A and Part B: Many people sign up for both when they first become eligible at 65.
- Part A only: Some people sign up for premium-free Part A and delay Part B because they are still
covered by active employer group health coverage.
- Part B only: Some people already have Part A and later need to add Part B after leaving
employer coverage.
- Medicare only: If you are not ready to claim Social Security retirement benefits, you may still be
able to apply for Medicare only.
Step 3: Start With Social Security
To sign up for Original Medicare Part A and Part B, start with Social Security. You can apply
online at SSA.gov, call Social Security, or contact a local Social Security office for help with the
Medicare application process.
When applying online, make sure you are using the official Social Security website. Social
Security handles the Medicare Part A and Part B application. Medicare Advantage, Medicare
Supplement, and Part D decisions come after you know your Medicare number and effective
dates.
Step 4: Have the Right Information Ready
Before you begin, gather basic personal information, your Social Security number, current health
insurance information, and start and end dates for any group health plans you had after age 65.
If you are signing up for Part B only, you may also need your existing Medicare number and a
valid email address.
Having this information ready can make the application smoother and help avoid delays.
Step 5: If You Already Have Part A and Need Part B Later
A common Medicare situation is this: you signed up for premium-free Part A at 65, delayed Part
B because you were still working, and now you are retiring or losing active employer group
health coverage.
If you already have Part A and need to add Part B, this is different from applying for Medicare for
the first time. You generally use the Part B enrollment process. The two forms many people
should know are CMS-40B, Application for Enrollment in Medicare Part B, and CMS-L564, Request
for Employment Information, which verifies employer group health coverage when applicable.
Do not wait until the last minute. Your Part B start date can affect when Medicare Advantage,
Medicare Supplement, or Part D prescription drug coverage can begin.
Step 6: Understand COBRA, Retiree Coverage, and Employer Coverage
COBRA and retiree coverage are not the same as active employer group health coverage. Before
relying on COBRA, retiree benefits, Marketplace coverage, or individual insurance to delay
Medicare Part B, check the rules carefully.
This is one of the biggest Medicare enrollment mistakes people can make. If the coverage does
not allow you to delay Part B safely, you may face delayed coverage or a late enrollment
penalty.
Step 7: Track Your Medicare Application
After you submit your Medicare application or Part B request, create or sign in to your my Social
Security account. This can help you track your application and watch for your Medicare
information.
Once processed, your benefit verification letter may show your Medicare number and your Part A
and Part B start dates. This can be helpful if you are waiting for the physical Medicare card to
arrive.
Step 8: Confirm Your Medicare Number and Start Dates
Before choosing any additional Medicare coverage, confirm your Medicare number and your Part
A and Part B effective dates. These dates matter because they help determine when other
Medicare coverage can begin.
Do not assume your Medicare coverage starts on a certain date until you verify it through Social
Security, your Medicare card, or your benefit verification letter.
Step 9: Review Your Medicare Coverage Options in Las Vegas and Nevada
After you have your Medicare number and effective dates, the next step is deciding how you
want to receive your Medicare coverage.
You may compare Original Medicare with a Medicare Supplement and a separate Part D
prescription drug plan, or you may compare Medicare Advantage plans available in your county
and ZIP code.
This is where local Nevada Medicare guidance can help. Medicare enrollment rules are federal,
but Medicare plan choices are local. Provider networks, medical groups, pharmacy networks,
prescription drug coverage, out-of-pocket costs, and plan availability can vary by county and ZIP
code.
Why Local Medicare Help Matters in Las Vegas, Nevada
People signing up for Medicare in Las Vegas, Henderson, North Las Vegas, Boulder City,
Pahrump, Mesquite, Reno, Sparks, Carson City, and other Nevada communities may have
different Medicare Advantage, Medicare Supplement, and Part D plan choices available.
A local Medicare review can help you connect the Medicare sign-up process with the next
decisions that matter: doctors, prescriptions, pharmacies, medical groups, monthly premiums
Medicare Sign-Up Checklist
- Confirm your 65th birthday month, retirement date, or employer coverage end date.
- Decide whether you need Part A and Part B, Part A only, or Part B only.
- Start the Medicare sign-up process through Social Security.
- Create or sign in to your my Social Security account.
- If adding Part B after employer coverage, review CMS-40B and CMS-L564.
- Confirm your Medicare number and Part A and Part B start dates.
- List your doctors, specialists, prescriptions, and preferred pharmacies.
- Compare Medicare Advantage, Medicare Supplement, and Part D options in your Nevada ZIP
code.
FAQ: How to Sign Up for Medicare in Las Vegas and Nevada
How do I sign up for Medicare?
Most people sign up for Original Medicare Part A and Part B through Social Security. You can
apply online, call Social Security, or contact a local Social Security office.
When should I sign up for Medicare?
Most people first sign up around age 65 during their Initial Enrollment Period, which generally
starts 3 months before the month they turn 65 and ends 3 months after their birthday month.
Can I sign up for Medicare without taking Social Security retirement benefits?
Yes, many people apply for Medicare only and delay Social Security retirement benefits. Social
Security handles the Medicare application.
What if I am still working at 65?
If you have active employer group health coverage through your own work or a spouse, you may
be able to delay Part B. Confirm the rules before delaying Medicare.
What forms are used to add Part B after employer coverage?
CMS-40B is used to request Part B enrollment, and CMS-L564 is commonly used to verify
employer group health coverage when a person delayed Part B because of active
employment-based coverage.
Why should I confirm my Medicare start dates?
Your Part A and Part B effective dates can affect when Medicare Advantage, Medicare
Supplement, and Part D prescription drug coverage can begin.
Can a local Las Vegas Medicare agent help after I sign up
Yes. A local Nevada licensed Medicare insurance agent can help explain Medicare Advantage,
Medicare Supplement, and Part D options available in your ZIP code after your Medicare number
and start dates are confirmed.
This is where local guidance can be helpful. Your doctors, prescriptions, pharmacies, budget, travel needs, and county of residence can all affect which Medicare option may fit your situation.
Medicare Enrollment Action Steps
Use this simple checklist to guide the enrollment process:
Confirm when you should enroll in Medicare based on your age, employer coverage, and retirement timeline.
Go to SSA.gov/Medicare to start the Medicare application, or contact Social Security by phone or through a local office.
Choose whether you are applying for Part A only, both Part A and Part B, or Part B only after already having Part A.
If you already have Part A and need Part B after employer coverage, complete CMS-40B and obtain CMS-L564 or other acceptable proof of active employer group health coverage.
Create or sign in to your my Social Security account after submitting the application or Part B request.
Track your application status and watch for your Medicare number.
Generate or save your benefit verification letter when Medicare information is available.
Confirm your Part A and Part B start dates before enrolling in additional Medicare coverage.
Review Medicare Advantage, Medicare Supplement, and Part D options based on your doctors, prescriptions, costs, and ZIP code.
How to Apply, Add Part B, Track Your Medicare Number, and Confirm Your Part A and Part B Start Dates
How to Sign Up for Medicare
If you are getting close to age 65, retiring, leaving employer coverage, or trying to add Medicare
Part B, one of the first questions is simple: how do I sign up for Medicare?
For most people in Las Vegas, Henderson, North Las Vegas, and throughout Nevada, the
Medicare sign-up process starts with Social Security. You sign up for Original Medicare Part A
and Part B through Social Security, not through a private insurance company. After you have
your Medicare number and your Part A and Part B start dates, you can review your next
coverage choices, including Medicare Advantage, Medicare Supplement, and Part D prescription
drug plans available in your Nevada ZIP code.
Step 1: Know When You Should Sign Up for Medicare
Most people first become eligible for Medicare at age 65. Your first Medicare enrollment window
is called your Initial Enrollment Period. It generally starts 3 months before the month you turn
65, includes your birthday month, and continues for 3 months after your birthday month.
If you are already receiving Social Security benefits before age 65, you may be enrolled in
Medicare automatically. If you are not receiving Social Security yet, you usually need to actively
sign up for Medicare through Social Security.
If you are still working or covered through a spouse's active employer group health plan, your
timing may be different. Some people delay Part B because they have current employer
coverage. Before delaying Part B, confirm that your coverage allows you to wait without creating
a late enrollment penalty or coverage gap.
Step 2: Decide What You Are Signing Up For
Before you apply, decide which Medicare action fits your situation:
- Part A and Part B: Many people sign up for both when they first become eligible at 65.
- Part A only: Some people sign up for premium-free Part A and delay Part B because they are still
covered by active employer group health coverage.
- Part B only: Some people already have Part A and later need to add Part B after leaving
employer coverage.
- Medicare only: If you are not ready to claim Social Security retirement benefits, you may still be
able to apply for Medicare only.
Step 3: Start With Social Security
To sign up for Original Medicare Part A and Part B, start with Social Security. You can apply
online at SSA.gov, call Social Security, or contact a local Social Security office for help with the
Medicare application process.
When applying online, make sure you are using the official Social Security website. Social
Security handles the Medicare Part A and Part B application. Medicare Advantage, Medicare
Supplement, and Part D decisions come after you know your Medicare number and effective
dates.
Step 4: Have the Right Information Ready
Before you begin, gather basic personal information, your Social Security number, current health
insurance information, and start and end dates for any group health plans you had after age 65.
If you are signing up for Part B only, you may also need your existing Medicare number and a
valid email address.
Having this information ready can make the application smoother and help avoid delays.
Step 5: If You Already Have Part A and Need Part B Later
A common Medicare situation is this: you signed up for premium-free Part A at 65, delayed Part
B because you were still working, and now you are retiring or losing active employer group
health coverage.
If you already have Part A and need to add Part B, this is different from applying for Medicare for
the first time. You generally use the Part B enrollment process. The two forms many people
should know are CMS-40B, Application for Enrollment in Medicare Part B, and CMS-L564, Request
for Employment Information, which verifies employer group health coverage when applicable.
Do not wait until the last minute. Your Part B start date can affect when Medicare Advantage,
Medicare Supplement, or Part D prescription drug coverage can begin.
Step 6: Understand COBRA, Retiree Coverage, and Employer Coverage
COBRA and retiree coverage are not the same as active employer group health coverage. Before
relying on COBRA, retiree benefits, Marketplace coverage, or individual insurance to delay
Medicare Part B, check the rules carefully.
This is one of the biggest Medicare enrollment mistakes people can make. If the coverage does
not allow you to delay Part B safely, you may face delayed coverage or a late enrollment
penalty.
Step 7: Track Your Medicare Application
After you submit your Medicare application or Part B request, create or sign in to your my Social
Security account. This can help you track your application and watch for your Medicare
information.
Once processed, your benefit verification letter may show your Medicare number and your Part A
and Part B start dates. This can be helpful if you are waiting for the physical Medicare card to
arrive.
Step 8: Confirm Your Medicare Number and Start Dates
Before choosing any additional Medicare coverage, confirm your Medicare number and your Part
A and Part B effective dates. These dates matter because they help determine when other
Medicare coverage can begin.
Do not assume your Medicare coverage starts on a certain date until you verify it through Social
Security, your Medicare card, or your benefit verification letter.
Step 9: Review Your Medicare Coverage Options in Las Vegas and Nevada
After you have your Medicare number and effective dates, the next step is deciding how you
want to receive your Medicare coverage.
You may compare Original Medicare with a Medicare Supplement and a separate Part D
prescription drug plan, or you may compare Medicare Advantage plans available in your county
and ZIP code.
This is where local Nevada Medicare guidance can help. Medicare enrollment rules are federal,
but Medicare plan choices are local. Provider networks, medical groups, pharmacy networks,
prescription drug coverage, out-of-pocket costs, and plan availability can vary by county and ZIP
code.
Why Local Medicare Help Matters in Las Vegas, Nevada
People signing up for Medicare in Las Vegas, Henderson, North Las Vegas, Boulder City,
Pahrump, Mesquite, Reno, Sparks, Carson City, and other Nevada communities may have
different Medicare Advantage, Medicare Supplement, and Part D plan choices available.
A local Medicare review can help you connect the Medicare sign-up process with the next
decisions that matter: doctors, prescriptions, pharmacies, medical groups, monthly premiums
Medicare Sign-Up Checklist
- Confirm your 65th birthday month, retirement date, or employer coverage end date.
- Decide whether you need Part A and Part B, Part A only, or Part B only.
- Start the Medicare sign-up process through Social Security.
- Create or sign in to your my Social Security account.
- If adding Part B after employer coverage, review CMS-40B and CMS-L564.
- Confirm your Medicare number and Part A and Part B start dates.
- List your doctors, specialists, prescriptions, and preferred pharmacies.
- Compare Medicare Advantage, Medicare Supplement, and Part D options in your Nevada ZIP
code.
FAQ: How to Sign Up for Medicare in Las Vegas and Nevada
How do I sign up for Medicare?
Most people sign up for Original Medicare Part A and Part B through Social Security. You can
apply online, call Social Security, or contact a local Social Security office.
When should I sign up for Medicare?
Most people first sign up around age 65 during their Initial Enrollment Period, which generally
starts 3 months before the month they turn 65 and ends 3 months after their birthday month.
Can I sign up for Medicare without taking Social Security retirement benefits?
Yes, many people apply for Medicare only and delay Social Security retirement benefits. Social
Security handles the Medicare application.
What if I am still working at 65?
If you have active employer group health coverage through your own work or a spouse, you may
be able to delay Part B. Confirm the rules before delaying Medicare.
What forms are used to add Part B after employer coverage?
CMS-40B is used to request Part B enrollment, and CMS-L564 is commonly used to verify
employer group health coverage when a person delayed Part B because of active
employment-based coverage.
Why should I confirm my Medicare start dates?
Your Part A and Part B effective dates can affect when Medicare Advantage, Medicare
Supplement, and Part D prescription drug coverage can begin.
Can a local Las Vegas Medicare agent help after I sign up
Yes. A local Nevada licensed Medicare insurance agent can help explain Medicare Advantage,
Medicare Supplement, and Part D options available in your ZIP code after your Medicare number
and start dates are confirmed.
This is where local guidance can be helpful. Your doctors, prescriptions, pharmacies, budget, travel needs, and county of residence can all affect which Medicare option may fit your situation.
Medicare Enrollment Action Steps
Use this simple checklist to guide the enrollment process:
Confirm when you should enroll in Medicare based on your age, employer coverage, and retirement timeline.
Go to SSA.gov/Medicare to start the Medicare application, or contact Social Security by phone or through a local office.
Choose whether you are applying for Part A only, both Part A and Part B, or Part B only after already having Part A.
If you already have Part A and need Part B after employer coverage, complete CMS-40B and obtain CMS-L564 or other acceptable proof of active employer group health coverage.
Create or sign in to your my Social Security account after submitting the application or Part B request.
Track your application status and watch for your Medicare number.
Generate or save your benefit verification letter when Medicare information is available.
Confirm your Part A and Part B start dates before enrolling in additional Medicare coverage.
Review Medicare Advantage, Medicare Supplement, and Part D options based on your doctors, prescriptions, costs, and ZIP code.
Action Steps to Sign Up for Medicare
Signing up for Medicare starts with understanding your timing, applying through Social Security, and confirming your Medicare Part A and Part B start dates.
Signing up for Medicare starts with understanding your timing, applying through Social Security, and confirming your Medicare Part A and Part B start dates.
Be sure to follow these steps to sign up for Medicare include knowing when to enroll, applying through Social Security, creating or using your my Social Security account, confirming your Medicare number, and reviewing your Part A and Part B effective dates. For people in Las Vegas, Henderson, North Las Vegas, Pahrump, and across Nevada, these steps can help make Medicare enrollment clearer before comparing Medicare Advantage, Medicare Supplement, or Part D prescription drug coverage.
Medicare Creditable Coverage
Employer Coverage, Part B, and Part D Prescription Drug Coverage
Short Summary of Key Points
For Part D, the key question is whether the employer or union prescription drug coverage is creditable, meaning it is
expected to pay, on average, at least as much as standard Medicare drug coverage.
For Part B, the key question is different: whether the person has group health coverage based on current employment and
whether Medicare or the employer plan pays first.
COBRA and retiree coverage are not the same as active employment-based coverage for delaying Part B. Do not wait until
COBRA ends to review Part B enrollment.
If a person goes 63 or more days without Medicare drug coverage or other creditable prescription drug coverage after
becoming eligible, a Part D late enrollment penalty may apply.
Because the Medicare Part D benefit design changed significantly starting in 2025, employers and employees should
review prescription drug coverage carefully each year instead of assuming last year’s coverage is still creditable.
Important Accuracy Correction
The phrase “creditable coverage” is commonly used when discussing Medicare Part D prescription drug
coverage. It should not be used as a shortcut for every Part B decision. For Medicare Part B, the safer
and more accurate explanation is that a person may be able to delay Part B if they have group
health coverage through current employment, usually their own or a spouse’s current job, and the
employer-size rules support that decision. People should confirm this with their benefits administrator
before delaying Part B.
Part B and Part D: Two Different Questions on Creditable Coverage
Employer Coverage, Part B, and Part D Prescription Drug Coverage
Short Summary of Key Points
For Part D, the key question is whether the employer or union prescription drug coverage is creditable, meaning it is
expected to pay, on average, at least as much as standard Medicare drug coverage.
For Part B, the key question is different: whether the person has group health coverage based on current employment and
whether Medicare or the employer plan pays first.
COBRA and retiree coverage are not the same as active employment-based coverage for delaying Part B. Do not wait until
COBRA ends to review Part B enrollment.
If a person goes 63 or more days without Medicare drug coverage or other creditable prescription drug coverage after
becoming eligible, a Part D late enrollment penalty may apply.
Because the Medicare Part D benefit design changed significantly starting in 2025, employers and employees should
review prescription drug coverage carefully each year instead of assuming last year’s coverage is still creditable.
Important Accuracy Correction
The phrase “creditable coverage” is commonly used when discussing Medicare Part D prescription drug
coverage. It should not be used as a shortcut for every Part B decision. For Medicare Part B, the safer
and more accurate explanation is that a person may be able to delay Part B if they have group
health coverage through current employment, usually their own or a spouse’s current job, and the
employer-size rules support that decision. People should confirm this with their benefits administrator
before delaying Part B.
Part B and Part D: Two Different Questions on Creditable Coverage
What Creditable Prescription Drug Coverage Means
Creditable prescription drug coverage is coverage that is expected to pay, on average, at least as
much as standard Medicare drug coverage.
Common examples may include certain employer or union prescription drug plans, TRICARE,
Department of Veterans Affairs coverage, Indian Health Service coverage, and some retiree or
federal employee plans.
Creditable status is plan-specific. A person should not assume coverage is creditable just because it is
connected to an employer or retiree plan.
Why the Annual Notice Matters
Employers, unions, and other plan sponsors that offer prescription drug coverage to Medicareeligible
individuals generally provide a Notice of Creditable Coverage each year, usually by October 15.
The notice tells the person whether the prescription drug coverage is creditable or non-creditable for
Medicare Part D purposes.
People should keep the notice. A Medicare drug plan may ask for proof of prior creditable coverage if
the person enrolls later.
The 63-Day Part D Rule
After the Medicare Initial Enrollment Period, going 63 or more days in a row without Medicare drug
coverage or other creditable prescription drug coverage may trigger a Part D late enrollment penalty.
The Part D penalty is generally charged for as long as the person has Medicare drug coverage.
When creditable prescription drug coverage ends, the person should act quickly and review Medicare
drug coverage options before the 63-day window is missed.
Coverage That Needs Extra Caution
COBRA does not extend the limited time to sign up for Part B. A person should not wait until COBRA
ends to evaluate Part B enrollment.
Retiree coverage may be helpful, but it is not the same as active employment-based group coverage
for Part B Special Enrollment Period purposes.
Marketplace coverage is generally not treated like current employment-based group coverage once a
person is eligible for Medicare.
Drug discount cards and programs that do not provide coverage as good as standard Medicare drug
coverage are not creditable prescription drug coverage.
Why Part D Redesign Makes This a Bigger Issue
Starting in 2025, Medicare Part D was redesigned. The coverage gap was eliminated and Medicare
added a yearly out-of-pocket cap for covered Part D drugs.
In 2026, Medicare Part D has a $2,100 out-of-pocket cap for covered Part D drugs. This changes the
standard Medicare drug benefit that employer and union plans may be compared against.
CMS allowed group health plans to continue using the existing simplified creditable coverage
determination methodology for 2025, and for 2026 only allowed non-RDS group health plans to use
Drug discount cards and programs that do not provide coverage as good as standard Medicare drug
coverage are not creditable prescription drug coverage.
Creditable prescription drug coverage is coverage that is expected to pay, on average, at least as
much as standard Medicare drug coverage.
Common examples may include certain employer or union prescription drug plans, TRICARE,
Department of Veterans Affairs coverage, Indian Health Service coverage, and some retiree or
federal employee plans.
Creditable status is plan-specific. A person should not assume coverage is creditable just because it is
connected to an employer or retiree plan.
Why the Annual Notice Matters
Employers, unions, and other plan sponsors that offer prescription drug coverage to Medicareeligible
individuals generally provide a Notice of Creditable Coverage each year, usually by October 15.
The notice tells the person whether the prescription drug coverage is creditable or non-creditable for
Medicare Part D purposes.
People should keep the notice. A Medicare drug plan may ask for proof of prior creditable coverage if
the person enrolls later.
The 63-Day Part D Rule
After the Medicare Initial Enrollment Period, going 63 or more days in a row without Medicare drug
coverage or other creditable prescription drug coverage may trigger a Part D late enrollment penalty.
The Part D penalty is generally charged for as long as the person has Medicare drug coverage.
When creditable prescription drug coverage ends, the person should act quickly and review Medicare
drug coverage options before the 63-day window is missed.
Coverage That Needs Extra Caution
COBRA does not extend the limited time to sign up for Part B. A person should not wait until COBRA
ends to evaluate Part B enrollment.
Retiree coverage may be helpful, but it is not the same as active employment-based group coverage
for Part B Special Enrollment Period purposes.
Marketplace coverage is generally not treated like current employment-based group coverage once a
person is eligible for Medicare.
Drug discount cards and programs that do not provide coverage as good as standard Medicare drug
coverage are not creditable prescription drug coverage.
Why Part D Redesign Makes This a Bigger Issue
Starting in 2025, Medicare Part D was redesigned. The coverage gap was eliminated and Medicare
added a yearly out-of-pocket cap for covered Part D drugs.
In 2026, Medicare Part D has a $2,100 out-of-pocket cap for covered Part D drugs. This changes the
standard Medicare drug benefit that employer and union plans may be compared against.
CMS allowed group health plans to continue using the existing simplified creditable coverage
determination methodology for 2025, and for 2026 only allowed non-RDS group health plans to use
Drug discount cards and programs that do not provide coverage as good as standard Medicare drug
coverage are not creditable prescription drug coverage.
Final Takeaway
Employer coverage can affect Medicare decisions, but the rules are not one-size-fits-all. The safest
approach is to verify whether the coverage is based on current employment, confirm who pays first, read
the annual creditable coverage notice, and compare employer prescription drug coverage with Medicare
Part D options before delaying enrollment or making a change
Employer coverage can affect Medicare decisions, but the rules are not one-size-fits-all. The safest
approach is to verify whether the coverage is based on current employment, confirm who pays first, read
the annual creditable coverage notice, and compare employer prescription drug coverage with Medicare
Part D options before delaying enrollment or making a change
