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Medicare Card Scams: New Medicare Numbers and What to Know
Medicare Card Scams: Why Some People Received New Medicare Numbers and How to Stay Protected
Some people with Medicare recently received new Medicare cards with new Medicare numbers. That has
created confusion - and scammers are trying to take advantage of it.
The important point is this: there is not a normal nationwide Medicare card replacement for everyone.
According to the Senior Medicare Patrol, in March and April 2026 some Medicare beneficiaries received new
Medicare cards with new numbers, and Medicare sent those cards with a letter explaining why a new number
was issued. If someone is not sure whether a letter from Medicare is legitimate, the safest step is to call
1-800-MEDICARE directly. [2]
Why were some Medicare numbers changed?
CMS reported that it was notifying Medicare beneficiaries whose personal information may have been
involved in a data incident affecting Medicare.gov accounts. CMS said it identified suspicious activity related
to unauthorized creation of certain beneficiary online accounts using personal information obtained from
unknown external sources. [1]
Separately, CMS has also warned about a concerning trend involving stolen Medicare Beneficiary Identifiers,
often called MBIs, being misused for Medicare fraud. Your Medicare number is valuable because it can be
used to bill Medicare for services, supplies, or equipment. [1, 6, 7]
This is why some people may receive a new Medicare card or a replacement Medicare number. A new card
can be legitimate when Medicare sends it by mail with an official letter. However, a phone call, text message,
or email demanding that you verify your number is a warning sign.
What scammers may say
Scammers often use urgency to make people act quickly. They may say:
• You need to verify your Medicare number to keep your benefits.
• Medicare is sending everyone a new plastic card.
• You must pay for a new Medicare card.
• Your benefits will be canceled if you do not respond.
• They need your Medicare number, Social Security number, bank information, or personal information.
These messages are designed to create fear and confusion. The Federal Trade Commission warns that
Medicare will not call and ask for personal information to get a new Medicare number and card, and the card
is free. [5]
What a legitimate Medicare card notice may look like
Medicare.gov explains that a replacement Medicare card letter may be sent if a person, or someone acting
on that person's behalf, asked for a new card, or if the person's Medicare coverage, Medicare number, or
name changed. [3]
If you receive a new card in the mail, review the letter carefully. If the letter says your Medicare number has
changed, use the new card going forward and give the updated number to your doctors, pharmacy, and
insurance plan when needed. If you are unsure whether the letter is real, do not call a number from a
suspicious message. Call 1-800-MEDICARE directly.
How to protect yourself
Do not give your Medicare number to unknown callers. Treat your Medicare number like a credit card or
Social Security number. Only share it with trusted doctors, pharmacies, health plans, or people you know are
helping you with Medicare. Do not pay for a Medicare card. A Medicare card is free. If someone says you must pay a fee, buy a plastic card, or pay to keep your Medicare benefits active, that is a scam warning sign.
Be cautious with texts, emails, and caller ID. Scammers can make a phone number look official. Caller ID
can be spoofed. Do not rely on the number shown on your phone as proof that the call is real.
Watch your Medicare Summary Notices. Look for services, supplies, tests, or equipment you did not
receive. Unexpected claims can be a sign that someone used your Medicare number.
Call Medicare directly when in doubt. If you have questions about a new Medicare card or a possible
scam, call 1-800-MEDICARE. TTY users can call 1-877-486-2048. [4]
If you believe your Medicare number was used without your permission, report it. You can call
1-800-MEDICARE or contact your local Senior Medicare Patrol for help. The Senior Medicare Patrol helps
people with Medicare, families, and caregivers prevent, detect, and report Medicare fraud, errors, and abuse.
[2]
Bottom line
Some new Medicare cards and new Medicare numbers are legitimate. The problem is that scammers are
using the confusion to contact people and ask for private information.
Do not respond to pressure. Do not give your Medicare number to an unknown caller. Do not pay for a new
card. If a Medicare card notice or phone call does not feel right, call Medicare directly at 1-800-MEDICARE.
Medicare in Las Vegas helps Nevada residents understand Medicare choices and stay informed about
important Medicare updates.
This information is educational and is not connected with the federal Medicare program
Documented Sources and Citations
The article above was prepared from the following sources. Review source publication dates and compliance
requirements before publishing, especially if using this article later in the year.
[1] Centers for Medicare & Medicaid Services (CMS)
CMS Notifies Individuals Potentially Impacted by Data Incident
https://www.cms.gov/newsroom/press-releases/cms-notifies-individuals-potentially-impacted-data-incident
[2] Senior Medicare Patrol National Resource Center
Medicare Card Scams
https://smpresource.org/medicare-fraud/fraud-schemes/medicare-card-scams/
[3] Medicare.gov
Replacement Medicare Card Letter
https://www.medicare.gov/basics/forms-publications-mailings/mailings/other-mailings/replacement-medicare-card
[4] Medicare.gov
Your Medicare Card
https://www.medicare.gov/basics/get-started-with-medicare/using-medicare/your-medicare-card
[5] Federal Trade Commission
Hang up on Medicare card scams
https://consumer.ftc.gov/consumer-alerts/2018/09/hang-medicare-card-scams
[6] Federal Trade Commission
Your Medicare number is valuable. Protect it
https://consumer.ftc.gov/consumer-alerts/2024/06/your-medicare-number-valuable-protect-it
[7] CMS Security
Why AI is making Medicare vishing scams more dangerous
https://security.cms.gov/posts/why-ai-making-medicare-vishing-scams-more-dangerous
Not affiliated with the US Government or the Federal Medicare Program.
Some people with Medicare recently received new Medicare cards with new Medicare numbers. That has
created confusion - and scammers are trying to take advantage of it.
The important point is this: there is not a normal nationwide Medicare card replacement for everyone.
According to the Senior Medicare Patrol, in March and April 2026 some Medicare beneficiaries received new
Medicare cards with new numbers, and Medicare sent those cards with a letter explaining why a new number
was issued. If someone is not sure whether a letter from Medicare is legitimate, the safest step is to call
1-800-MEDICARE directly. [2]
Why were some Medicare numbers changed?
CMS reported that it was notifying Medicare beneficiaries whose personal information may have been
involved in a data incident affecting Medicare.gov accounts. CMS said it identified suspicious activity related
to unauthorized creation of certain beneficiary online accounts using personal information obtained from
unknown external sources. [1]
Separately, CMS has also warned about a concerning trend involving stolen Medicare Beneficiary Identifiers,
often called MBIs, being misused for Medicare fraud. Your Medicare number is valuable because it can be
used to bill Medicare for services, supplies, or equipment. [1, 6, 7]
This is why some people may receive a new Medicare card or a replacement Medicare number. A new card
can be legitimate when Medicare sends it by mail with an official letter. However, a phone call, text message,
or email demanding that you verify your number is a warning sign.
What scammers may say
Scammers often use urgency to make people act quickly. They may say:
• You need to verify your Medicare number to keep your benefits.
• Medicare is sending everyone a new plastic card.
• You must pay for a new Medicare card.
• Your benefits will be canceled if you do not respond.
• They need your Medicare number, Social Security number, bank information, or personal information.
These messages are designed to create fear and confusion. The Federal Trade Commission warns that
Medicare will not call and ask for personal information to get a new Medicare number and card, and the card
is free. [5]
What a legitimate Medicare card notice may look like
Medicare.gov explains that a replacement Medicare card letter may be sent if a person, or someone acting
on that person's behalf, asked for a new card, or if the person's Medicare coverage, Medicare number, or
name changed. [3]
If you receive a new card in the mail, review the letter carefully. If the letter says your Medicare number has
changed, use the new card going forward and give the updated number to your doctors, pharmacy, and
insurance plan when needed. If you are unsure whether the letter is real, do not call a number from a
suspicious message. Call 1-800-MEDICARE directly.
How to protect yourself
Do not give your Medicare number to unknown callers. Treat your Medicare number like a credit card or
Social Security number. Only share it with trusted doctors, pharmacies, health plans, or people you know are
helping you with Medicare. Do not pay for a Medicare card. A Medicare card is free. If someone says you must pay a fee, buy a plastic card, or pay to keep your Medicare benefits active, that is a scam warning sign.
Be cautious with texts, emails, and caller ID. Scammers can make a phone number look official. Caller ID
can be spoofed. Do not rely on the number shown on your phone as proof that the call is real.
Watch your Medicare Summary Notices. Look for services, supplies, tests, or equipment you did not
receive. Unexpected claims can be a sign that someone used your Medicare number.
Call Medicare directly when in doubt. If you have questions about a new Medicare card or a possible
scam, call 1-800-MEDICARE. TTY users can call 1-877-486-2048. [4]
If you believe your Medicare number was used without your permission, report it. You can call
1-800-MEDICARE or contact your local Senior Medicare Patrol for help. The Senior Medicare Patrol helps
people with Medicare, families, and caregivers prevent, detect, and report Medicare fraud, errors, and abuse.
[2]
Bottom line
Some new Medicare cards and new Medicare numbers are legitimate. The problem is that scammers are
using the confusion to contact people and ask for private information.
Do not respond to pressure. Do not give your Medicare number to an unknown caller. Do not pay for a new
card. If a Medicare card notice or phone call does not feel right, call Medicare directly at 1-800-MEDICARE.
Medicare in Las Vegas helps Nevada residents understand Medicare choices and stay informed about
important Medicare updates.
This information is educational and is not connected with the federal Medicare program
Documented Sources and Citations
The article above was prepared from the following sources. Review source publication dates and compliance
requirements before publishing, especially if using this article later in the year.
[1] Centers for Medicare & Medicaid Services (CMS)
CMS Notifies Individuals Potentially Impacted by Data Incident
https://www.cms.gov/newsroom/press-releases/cms-notifies-individuals-potentially-impacted-data-incident
[2] Senior Medicare Patrol National Resource Center
Medicare Card Scams
https://smpresource.org/medicare-fraud/fraud-schemes/medicare-card-scams/
[3] Medicare.gov
Replacement Medicare Card Letter
https://www.medicare.gov/basics/forms-publications-mailings/mailings/other-mailings/replacement-medicare-card
[4] Medicare.gov
Your Medicare Card
https://www.medicare.gov/basics/get-started-with-medicare/using-medicare/your-medicare-card
[5] Federal Trade Commission
Hang up on Medicare card scams
https://consumer.ftc.gov/consumer-alerts/2018/09/hang-medicare-card-scams
[6] Federal Trade Commission
Your Medicare number is valuable. Protect it
https://consumer.ftc.gov/consumer-alerts/2024/06/your-medicare-number-valuable-protect-it
[7] CMS Security
Why AI is making Medicare vishing scams more dangerous
https://security.cms.gov/posts/why-ai-making-medicare-vishing-scams-more-dangerous
Not affiliated with the US Government or the Federal Medicare Program.
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Medicare Advantage Plans, Medicare Part D and Medicare Supplemental Insurance
We are licensed in the following states as an Insurance Marketing Group:
*Nevada #210603 *Arizona License #2147056 *Utah License #234923 *Idaho 773252 *California #4053866 *Oregon 2147056,*Washington State 919217 *Texas #1873256 *New Mexico 2147056
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Medicare has neither reviewed nor endorsed this information
We do not offer every plan in your area. Currently we represent 11 organizations that offer 68 products in your area.
Please contact Medicare.gov to get information on all of your options.
A licensed insurance sales agent may mail, call or e-mail as a result of completing any informational forms on this website to discuss Medicare Advantage (Part C) plans, Medicare Part D Prescription Drug Plans or Medicare Supplement Insurance.
Please Note:
Clicking on any of the links provided will take you from our Medicare Information website to a non-Medicare information or to a different website.
Medicare has neither reviewed nor endorsed this information
We do not offer every plan in your area. Currently we represent 11 organizations that offer 68 products in your area.
Please contact Medicare.gov to get information on all of your options.
A licensed insurance sales agent may mail, call or e-mail as a result of completing any informational forms on this website to discuss Medicare Advantage (Part C) plans, Medicare Part D Prescription Drug Plans or Medicare Supplement Insurance.
Please Note:
Clicking on any of the links provided will take you from our Medicare Information website to a non-Medicare information or to a different website.