CMS-40B Template

CMS-40B Template

The CMS-40B form is a crucial document used by individuals seeking to enroll in Medicare Part B. This form facilitates the process of obtaining medical insurance coverage for eligible seniors and certain individuals with disabilities. To ensure you receive the benefits you deserve, consider filling out the form by clicking the button below.

Table of Contents

The CMS-40B form plays a crucial role in the Medicare enrollment process, specifically for individuals seeking to apply for Medicare Part B. This form is designed for those who are eligible for Medicare but have not yet enrolled, allowing them to secure essential health coverage. Completing the CMS-40B form accurately is vital, as it collects necessary information such as personal identification details, reasons for enrollment, and any previous health insurance coverage. The form must be submitted within specific timeframes to avoid penalties or gaps in coverage. Understanding the requirements and implications of the CMS-40B form can significantly ease the transition into Medicare for many individuals. By navigating this process effectively, applicants can ensure they receive the healthcare benefits they deserve, ultimately enhancing their quality of life during retirement years.

CMS-40B Sample

CMS-40B (07/2025)
Request for Enrollment in Medicare Part B
(Medical Insurance)
Use this form if you already have Medicare Part A and want to sign up for Part B (Medical Insurance). You
can use this form to sign up for Part B during these times:
During your Initial Enrollment Period
During the General Enrollment Period from January 1–March 31 each year
If you’re eligible for a Special Enrollment Period
If you don’t have Part A, don’t complete this application. Contact Social Security to apply for
Medicare for the first time.
Visit Medicare.gov/basics/get-started-with-medicare to learn more about when you can sign up for
Medicare, when your coverage can start, and special situations for people under 65 with a disability.
Submit your form by mail or fax
Mail or fax your completed, signed form to your local Social Security office. Find an office near you at
SSA.gov/locator.
Get help with this form
Phone: Call Social Security at 1-800-772-1213. TTY users call 1-800-325-0778.
En Español: Llame a SSA gratis al 1-800-772-1213 y oprima el 2 si desea el servicio en Español y espere a
que le atienda un agente.
For an office near you visit SSA.gov/locator.
State Health Insurance Assistance Program (SHIP): Visit shiphelp.org to get free, personalized, and
unbiased health insurance counseling from your local SHIP.
Get information in another format
You have the right to get Medicare information in an accessible format, like large print, braille, or
audio. You also have the right to file a complaint if you feel you’ve been discriminated against. Visit
Medicare.gov/about-us/accessibility-nondiscrimination-notice, or call 1-800-MEDICARE (1-800-633-4227)
for more information. TTY users can call 1-877-486-2048.
1
CMS-40B (07/2025)
Request for Enrollment in Medicare Part B (Medical Insurance)
Section 1: Basic information
1. Medicare Number
2. First name Middle name Last name Suffix
3. Mailing address (number and street, P.O. Box, or route)
City State
ZIP code
4. Phone number 5. Email address
U.S. Department of Health and Human Services
Centers for Medicare & Medicaid Services
Form Approved
OMB No. 0938-1230
Expires: 07/31/2028
Section 2: Enrollment in Medicare Part B
1. Do you have (or did you have) coverage through an employer or union group health plan
since you turned 65? (If yes, complete item 3.) .........................................................................................................
Yes 
No
Note: If you sign up for Part B, you must pay premiums for every month you have the coverage.
2. Are you currently (or were you) an international volunteer for a non-profit organization that
provided health coverage to you? (If yes, complete item 3.) .................................................................................
Yes 
No
3. Enter dates of employment (or volunteer work) and health coverage (enter dates as mm/yyyy). Attach a
separate sheet if you need more space. Have your employer fill out the form CMS-L564 (Request for Employment
Information) and return it with your application.
Dates you (or your spouse) worked for an employer that provided health coverage
Start date:
  
End date:
Not ended
Dates you worked as a volunteer outside the U.S.
Start date:
  
End date:
Not ended
Dates of health coverage from employer (or non-profit organization)
Start date:
  
End date:
Not ended
4. Has an employer, health insurance provider, or other entity asked or required you to enroll in Part B?
(If yes, explain how and why in the space below, and include proof or documentation
with this form.) ..........................................................................................................................................................................
Yes  No
Choose your coverage start date
If you’re enrolling in Medicare while you’re still covered by a group health plan based on current employment
(or during the first full month you’re not enrolled in the group health plan), you can choose when your Medicare
coverage will start. Choose one:
The first day of the month you enroll
The first day of any of the 3 months after you enroll. Write the month and year you want coverage to start:
(mm/yyyy)
2
CMS-40B (07/2025)
Section 3: Signature(s)
1. Signature of applicant 2. Date signed (mm/dd/yyyy)
If this form has been signed by mark (X), a witness who knows the person applying must also sign below:
3. Name of witness (first and last name)
4. Signature of witness 5. Date signed (mm/dd/yyyy)
Submit your form by mail or fax
Mail or fax your completed, signed form to your local Social Security office. Find an office near you at
SSA.gov/locator.
Paperwork Reduction Act: According to the Paperwork Reduction Act of 1995, no persons are required to respond to a collection of
information unless it displays a valid OMB control number. The valid OMB control number for this information collection is 0938-1230.
The time required to complete this information is estimated to average 15 minutes per response, including the time to review
instructions, search existing data resources, gather the data needed, and complete and review the information collection. If you have
any comments concerning the accuracy of the time estimate(s) or suggestions for improving this form, please write to: CMS, Attn: PRA
Reports Clearance Ocer, 7500 Security Boulevard, Baltimore, Maryland 21244-1850. Important: Do not send this form or any items
with your personal information (such as claims, payments, medical records, etc.) to the PRA Reports Clearance Oce. Any items we get
that aren’t about how to improve this form or its collection burden (outlined in OMB 0939-0251) will be destroyed. It will not be kept,
reviewed, or forwarded to Social Security or any other agency.
Privacy Act Statement: Sections 1837, 1838 and 1872 of the Social Security Act, as amended, allow SSA to collect this information.
Furnishing this information is voluntary. However, failing to provide all or part of the information may prevent an accurate and timely
decision on any claim filed for medical insurance and/or hospital insurance.
We will use the information you provide to determine your eligibility for benefits. We may also share the information for the following
purposes, called routine uses: 1) To Federal, State, or local agencies (or agents on their behalf) for administering income maintenance
or health maintenance programs (including programs under the Social Security Act). Such disclosure includes, but are not limited to,
release of information to: Railroad Retirement Board for administering provision of the Railroad Retirement Act relating to railroad
employment; for administering the Railroad Unemployment Insurance Act and for administering provisions of the Social Security Act
relating to railroad employment; 2) Department of Veterans Aairs for administering 38 U.S.C. 1312, and upon request, for determining
eligibility for, or amount of, veterans benefits or verifying other information with respect thereto pursuant to 38 U.S.C. 5106; 3) State
welfare departments for administering sections 205(c)(2)(B)(i)(II) and 402(a)(25) of the Social Security Act requiring information
about assigned Social Security numbers for Temporary Assistance for Needy Families (TANF) program purposes and for determining a
recipient’s eligibility under the TANF program; and 4) State agencies for administering the Medicaid program.
To contractors and other Federal agencies, as necessary, for the purpose of assisting the Social Security Administration (SSA) in the
ecient administration of its programs. We will disclose information under the routine use only in situations in which SSA may enter
into a contractual or similar agreement with a third party to assist in accomplishing an agency function relating to this system of
records.
In addition, we may share this information in accordance with the Privacy Act and other Federal laws. For example, where authorized,
we may use and disclose this information in computer matching programs, in which our records are compared with other records to
establish or verify a person’s eligibility for Federal benefit programs and for repayment of incorrect or delinquent debts under these
programs.
A list of additional routine uses is available in our Privacy Act System of Records Notice (SORN) 60-0090, entitled Master Beneficiary
Record, as published in the Federal Register (FR) on January 11, 2006, at 71 FR 1826. Additional information, and a full listing of all of our
SORNs, is available on our website at SSA.gov/privacy.
CMS will maintain records received during eligibility determinations from SSA in a CMS System of Records, the Medicare
Beneficiary Database (MBD) SORN 09-70-0536 as published in the Federal Register (FR) on February 14, 2018, at 71 FR 11420.
Additional information on CMS SORNs and permissible Routine Uses for disclosure can be located at our Privacy website
HHS.gov/foia/privacy/sorns/index.html.

Document Attributes

Fact Name Details
Purpose The CMS-40B form is used to apply for Medicare Part B coverage.
Eligibility Individuals who are 65 years or older, or those under 65 with certain disabilities can apply.
Submission Method The form can be submitted online, by mail, or in person at a local Social Security office.
Processing Time Typically, processing takes about 30 days from the date of submission.
Governing Law Federal law governs the CMS-40B form, specifically the Social Security Act.
Required Information Applicants must provide personal details, including Social Security number, address, and date of birth.
Cost There is no fee to submit the CMS-40B form for Medicare Part B coverage.
Annual Enrollment Period The form can be submitted during the General Enrollment Period from January 1 to March 31 each year.
Impact on Coverage Filing the CMS-40B form is crucial for obtaining Medicare Part B benefits, which cover outpatient care.

CMS-40B: Usage Instruction

After gathering the necessary information, you can proceed to fill out the CMS-40B form. This form is essential for individuals seeking to enroll in Medicare. Ensure you have all relevant details at hand, as accuracy is critical for a smooth application process.

  1. Begin by downloading the CMS-40B form from the official Medicare website or obtain a physical copy from your local Social Security office.
  2. Read the instructions carefully to understand the requirements before you start filling out the form.
  3. Provide your personal information in the designated sections. This includes your full name, address, date of birth, and Social Security number.
  4. Indicate your Medicare eligibility by checking the appropriate boxes. Make sure to review your choices for accuracy.
  5. Fill in the information regarding your current health insurance, if applicable. Include the name of the insurance company and policy details.
  6. Sign and date the form at the bottom. Your signature confirms that the information provided is true and complete.
  7. Make a copy of the completed form for your records before submitting it.
  8. Submit the form either online, by mail, or in person at your local Social Security office, depending on your preference and the available options.

Frequently Asked Questions

  1. What is the CMS-40B form?

    The CMS-40B form is used to apply for Medicare Part B coverage. It is essential for individuals who wish to enroll in this health insurance program, which helps cover medical services such as doctor visits, outpatient care, and preventive services. Completing this form accurately ensures that applicants can receive the benefits they need.

  2. Who is eligible to use the CMS-40B form?

    Individuals who are eligible for Medicare can use the CMS-40B form. Generally, this includes those who are 65 years or older, as well as younger individuals with certain disabilities or specific medical conditions. Eligibility may also depend on the individual’s work history and the work history of their spouse.

  3. How do I submit the CMS-40B form?

    The CMS-40B form can be submitted in several ways. Applicants may choose to mail the completed form to their local Social Security office. Alternatively, individuals can also apply online through the Social Security Administration's website. In-person submissions are also an option at local Social Security offices.

  4. What information is required on the CMS-40B form?

    Applicants need to provide personal information, including their name, address, date of birth, and Social Security number. Additionally, details regarding current health insurance coverage and employment status may be required. It is crucial to ensure that all information is accurate and complete to avoid delays in processing.

  5. When should I submit the CMS-40B form?

    It is advisable to submit the CMS-40B form during the initial enrollment period, which typically begins three months before an individual turns 65 and lasts for seven months. If someone misses this window, they may have to wait for the general enrollment period, which occurs annually from January 1 to March 31.

Common mistakes

Filling out the CMS-40B form can be a straightforward process, but many individuals encounter pitfalls that can lead to delays or even denials of benefits. One common mistake is not providing accurate personal information. This includes misspellings of names or incorrect Social Security numbers. Such errors can create confusion and may require additional steps to correct.

Another frequent issue arises from incomplete sections of the form. Some people assume that leaving certain fields blank is acceptable. However, every section is important, and omitting information can result in processing delays. It’s essential to read the instructions carefully and ensure all required fields are filled out completely.

Many applicants fail to double-check their responses. A quick review can catch simple mistakes that might otherwise go unnoticed. Errors in dates or contact information can lead to communication problems with the Medicare program, so taking the time to verify details is crucial.

Some individuals neglect to sign and date the form. A signature is a legal requirement that confirms the information provided is true and accurate. Without it, the form may be considered invalid, causing further complications.

People often overlook the importance of providing supporting documentation. The CMS-40B form may require additional documents to substantiate claims. Failing to include these can delay the processing of your application.

Another common error is not understanding the eligibility requirements. Before filling out the form, applicants should ensure they meet all necessary criteria. Misunderstanding these requirements can lead to wasted time and effort.

Some applicants submit the form without making copies for their records. Keeping a copy is vital in case any issues arise later. It provides a reference point for both the applicant and the Medicare program.

Many individuals do not follow the submission guidelines. Whether it’s mailing the form to the wrong address or not using the correct postage, these small details matter. Following the provided instructions closely can help avoid unnecessary delays.

Another mistake is failing to check for updates to the form or the process. Regulations can change, and staying informed about any updates can ensure that you’re using the most current version of the CMS-40B form.

Lastly, some applicants do not seek help when needed. If you’re unsure about how to fill out the form or have questions, it’s wise to reach out for assistance. Resources are available, and getting help can prevent errors that may hinder your application.

Documents used along the form

The CMS-40B form is primarily used for applying for Medicare Part B coverage. When submitting this form, there are several other documents and forms that may also be required to ensure a complete application. Below is a list of some common forms and documents that are often used in conjunction with the CMS-40B form, along with brief descriptions of each.

  • CMS-40A Form: This form is used to apply for Medicare Part A. It is essential for individuals who are eligible for hospital insurance and need to enroll in this program.
  • CMS-L564 Form: This document serves as proof of employment or group health plan coverage. It is particularly important for those who are applying for a Special Enrollment Period.
  • CMS-1490S Form: This is the request for Medicare Part B reimbursement. Beneficiaries may need this form if they have paid for services covered under Part B but did not initially enroll.
  • Form SSA-44: This form is used to request a reduction in income-related monthly adjustment amounts (IRMAA) for Medicare premiums. It is applicable for individuals whose income has decreased.
  • Proof of Residency: Documentation such as utility bills or lease agreements may be required to verify the applicant's current address. This information helps ensure that Medicare records are accurate.

Having these forms and documents ready can streamline the application process for Medicare Part B. Each document plays a vital role in providing the necessary information and proof needed for a successful enrollment. Ensuring all required paperwork is complete can lead to a smoother experience for applicants.

Similar forms

The CMS-40B form is an important document used in the context of Medicare. It serves specific purposes related to enrollment and eligibility for Medicare benefits. Several other documents share similarities with the CMS-40B form in terms of function, purpose, or process. Here is a list of seven such documents:

  • CMS-40A Form: This form is used for Medicare Part A enrollment. Like the CMS-40B, it facilitates access to essential health care services for eligible individuals.
  • CMS-855I Form: This is the application for Medicare enrollment for individual providers. It shares the enrollment focus of the CMS-40B, ensuring that healthcare providers can participate in Medicare.
  • CMS-855B Form: Similar to the CMS-855I, this form is for institutional providers. It also addresses enrollment and participation in Medicare, aligning with the goals of the CMS-40B.
  • CMS-10114 Form: This document is used to apply for Medicare Savings Programs. It helps individuals access financial assistance for Medicare costs, paralleling the CMS-40B's purpose of enhancing Medicare access.
  • CMS-1763 Form: This form is utilized to request a waiver of premium for Medicare Part B. Like the CMS-40B, it deals with eligibility and financial considerations related to Medicare.
  • CMS-10182 Form: This document allows individuals to apply for Extra Help with prescription drug costs under Medicare. It complements the CMS-40B by focusing on affordability and access to necessary medications.
  • CMS-1490S Form: This form is used for filing a request for reimbursement for medical expenses. It relates to Medicare benefits and helps ensure that individuals receive the financial support they need, similar to the CMS-40B.

Dos and Don'ts

When filling out the CMS-40B form, it is crucial to pay attention to details to ensure a smooth process. Here are some important do's and don'ts to keep in mind:

  • Do read the instructions carefully before starting the form.
  • Do provide accurate personal information, including your full name and address.
  • Do double-check your Social Security number for accuracy.
  • Do sign and date the form where indicated.
  • Do keep a copy of the completed form for your records.
  • Don't leave any required fields blank; incomplete forms may delay processing.
  • Don't use abbreviations or nicknames; use your legal name.
  • Don't submit the form without reviewing it for errors.
  • Don't forget to check the submission deadline to avoid late penalties.

Following these guidelines will help ensure that your CMS-40B form is filled out correctly and submitted on time. Taking these steps can save you from potential issues down the line.

Misconceptions

The CMS-40B form is an important document for individuals seeking to enroll in Medicare. However, several misconceptions surround this form that can lead to confusion. Here are five common misunderstandings about the CMS-40B form:

  1. It is only for first-time enrollees.

    Many people believe that the CMS-40B form is exclusively for those enrolling in Medicare for the first time. In reality, it is also used for individuals who want to change their Medicare plan or switch from one type of coverage to another.

  2. Filling out the form guarantees enrollment.

    Some assume that submitting the CMS-40B form automatically ensures enrollment in Medicare. While it is a necessary step, enrollment is contingent upon meeting eligibility requirements and completing additional steps.

  3. The form can be submitted at any time.

    There is a common belief that the CMS-40B form can be submitted whenever one chooses. However, there are specific enrollment periods during which the form must be submitted to ensure timely processing.

  4. Only seniors need to worry about the CMS-40B form.

    While many seniors do need to fill out this form, younger individuals with disabilities may also be required to submit it. Eligibility is based on various factors, not just age.

  5. Assistance is not available for completing the form.

    Some individuals think they must navigate the CMS-40B form on their own. However, there are resources available, including local Medicare offices and online guides, to assist with the completion of the form.

Understanding these misconceptions can help individuals navigate the Medicare enrollment process more effectively and ensure they receive the coverage they need.

Key takeaways

When filling out and using the CMS-40B form, keep the following key takeaways in mind:

  • Ensure all information is accurate and complete to avoid delays in processing.
  • Use clear and legible handwriting or type the information to enhance readability.
  • Double-check your personal details, including your name, address, and Social Security number.
  • Be aware of the deadlines for submission to ensure timely enrollment in Medicare.
  • Gather all necessary documents before starting the form to streamline the process.
  • Submit the form via mail or online, depending on your preference and eligibility.
  • Keep a copy of the completed form for your records after submission.
  • Follow up with Medicare if you do not receive confirmation of your application.
  • Seek assistance if you have questions or need help with the form; there are resources available.

Timely and accurate completion of the CMS-40B form is essential for your Medicare enrollment. Take these steps seriously to ensure a smooth process.