Beneficiary and claim
The beneficiary's name and Medicare number, the item or service being appealed, and the date it was received.
CMS-20033
MEDICARE RECONSIDERATION REQUEST FORM
- Agency
- CMS
- Revision
- 01/20
- Fillable fields
- 20
- Pages
- 1
- Official source
- CMS form page
- Checked
- October 20, 2026
Form CMS-20033: Medicare Reconsideration Request Form
Form CMS-20033 is the Medicare Reconsideration Request Form from the Centers for Medicare & Medicaid Services. Its title calls it the 2nd level of appeal: it is used when the person appealing does not agree with the redetermination decision on a Medicare claim for an item or service. The form is marked OMB Exempt.
The form identifies the beneficiary, the item or service being appealed, the date it was received and the date of the redetermination notice. It then asks why the person appealing does not agree with the redetermination decision and what additional information Medicare should consider. The person appealing can be the beneficiary, a provider or supplier, or a representative.
The form asks for a copy of the redetermination notice and for any evidence, or a statement of what will be sent and when. You can fill it out free in your browser on this page and download the result without an account.
What's on Form CMS-20033
Redetermination notice
The date of the redetermination notice, a late filing reason if that notice came more than 180 days ago, and the name of the Medicare contractor that made the redetermination, not required if a copy of the notice is attached.
Overpayment question
A yes or no box asking whether the appeal involves an overpayment, for providers and suppliers only.
Reasons and more information
Space to explain why the person appealing does not agree with the redetermination decision, and space for additional information Medicare should consider.
Evidence
A choice between I have evidence to submit and I do not have evidence to submit.
Person appealing
Beneficiary, provider or supplier, or representative, with name, street address, city, state, ZIP code and phone, plus an optional email and date of appeal.
How to fill out Form CMS-20033
- 1
Find the redetermination notice
The form asks for the date of the redetermination notice and says to include a copy of it with the request.
- 2
Describe the claim
Enter the beneficiary's name, Medicare number, the item or service being appealed and the date it was received.
- 3
Explain the disagreement
Write why you do not agree with the redetermination decision and any additional information Medicare should consider. A notice older than 180 days also needs a reason for the late filing.
- 4
Attach or describe evidence
Attach the evidence, or a statement explaining what you intend to submit and when. The form says more evidence can come later, but all evidence has to be received before the reconsideration is issued.
- 5
Identify the person appealing
Check beneficiary, provider or supplier, or representative, and add the name, street address and telephone number.
Why fill Form CMS-20033 on indox
You get the real form, filled in a browser tab, with nothing standing between you and the finished PDF.
- Fill the form right in your browser, no software to install
- Free to fill and free to download, with no account
- The official blank straight from the CMS, not a copy someone retyped
- Works on a phone, tablet or computer
Sending the form and what it says
Where to send it
The form does not print a mailing address. It asks for the name of the Medicare contractor that made the redetermination, not required if a copy of the notice is attached.
Late filing
If the redetermination notice was received more than 180 days ago, the form asks for the reason for the late filing.
Evidence timing
Additional evidence may be sent later, but the form says all evidence must be received before the reconsideration is issued.
Privacy Act statement
The form says the information is collected under section 1869(a)(3) of the Social Security Act and used to further document the appeal. Giving it is voluntary, but leaving out any part may affect the determination of the appeal.
Other versions
The CMS page also links an HTML version of Form CMS-20033 and the CMS Accessibility & Nondiscrimination for Individuals with Disabilities Notice.
Related forms
CMS-20027
MEDICARE REDETERMINATION REQUEST FORM
20 fields, 1 page
CMS-20031
TRANSFER (ASSIGNMENT) OF APPEAL RIGHTS
20 fields, 2 pages
CMS-1696
APPOINTMENT OF REPRESENTATIVE
40 fields, 2 pages
CMS-10106
1-800-Medicare Authorization to Disclosure Personal Health Information
44 fields, 3 pages
CMS-1490S
PATIENT'S REQUEST FOR MEDICAL PAYMENT (English/Spanish)
49 fields, 18 pages
Who uses Form CMS-20033?
The form has three boxes for the person appealing.
Official sources and the blank
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Questions about Form CMS-20033
What is a Medicare reconsideration?
The form's title calls it the 2nd level of appeal. Form CMS-20033 is used when the person appealing does not agree with the redetermination decision on a Medicare claim.
Is there a time limit to file Form CMS-20033?
The form asks for a reason for late filing if the redetermination notice was received more than 180 days ago.
Do I send the redetermination notice?
The form asks for the date of the redetermination notice and says to include a copy of the notice with the request.
Can I send evidence after I file?
Yes. The form says additional evidence may be submitted later, but all evidence must be received before the reconsideration is issued. It asks for a statement of what you intend to submit and when.
Who can file a reconsideration request?
The form lets the person appealing be the beneficiary, a provider or supplier, or a representative.
Is the Medicare contractor's name required?
The form says the name of the Medicare contractor that made the redetermination is not required if a copy of the notice is attached.