Claims: How Do I…?
How do I submit documentation with my claim?
If you with to submit documentation or attachments with an electronic claim, you may use the Paperwork (PWK) process. The electronic claim should identify the documentation using the PWK Segment at the claim level (Loop 2300) or line level (Loop 2400). For additional information, refer to the Paperwork (PWK) Implementation: Submitting Additional Documentation with Electronic Claims article on the CGS website.
What is the best way for me to check the status of my claim?
Providers are required to use self-service technology, such as the Interactive Voice Response (IVR) system or the myCGS® web portal to access claim status and beneficiary eligibility information. Customer Service Representatives (CSRs) will refer providers to these resources when calling for claims status or eligibility information. Exceptions will be made if your experience technical difficulties.
Interactive Voice Response (IVR) – Use the IVR to check the status of a specific claim by calling 1.866.290.4036 and select Option 1. You will need your facility's NPI, PTAN, and the last 5 digits of the provider TIN. Refer to the CGS J15 Part B IVR User Guide
for additional information. Use the IVR and CTI Converter Tools self-service option. This tool converts letters to numbers for easy entry using your telephone keypad.
myCGS Web Portal – myCGS® can also be used to check the status of claims. Refer to the myCGS® User Manual, Chapter 2: Claims Tab
for detailed instructions. If you are not registered to access myCGS, refer to the Chapter 1: Overview of myCGS for additional information.
How do I access eligibility information for a Medicare patient?
Providers are required to use self-service technology, such as the Interactive Voice Response (IVR) system or the myCGS® web portal to access claim status and beneficiary eligibility information. Customer Service Representatives (CSRs) will refer providers to these resources when calling for claims status or eligibility information. Exceptions will be made if your experience technical difficulties.
Interactive Voice Response (IVR) – Use the IVR to check the eligibility of a Medicare beneficiary by calling 1.866.290.4036 and select Option 2. Refer to the CGS J15 Part B IVR User Guide
for additional information. Use the IVR and CTI Converter Tools self-service option. This tool converts letters to numbers for easy entry using your telephone keypad.
myCGS Web Portal – myCGS® also provides eligibility information. Refer to the myCGS® User Manual, Chapter 4: Eligibility Tab
for detailed instructions. If you are not registered to access myCGS, refer to the Chapter 1: Overview of myCGS for additional information.
I need to check to see why my claim denied as a duplicate.
Review the following resources to determine if your claim was previously paid/processed. Claims may have processed, but not paid because the payment was applied to the patient's deductible. In addition, please check with your clearinghouse/vendor for any billing issues with duplicate submissions.
Interactive Voice Response (IVR) – Use the IVR to check the status of claims with specific dates of service by calling 1.866.290.4036 and select Option 1. You will need your facility's NPI, PTAN, and the last 5 digits of the provider TIN. Refer to the CGS J15 Part B IVR User Guide
for additional information. Use the IVR and CTI Converter Tools self-service option. This tool converts letters to numbers for easy entry using your telephone keypad.
myCGS Web Portal – myCGS® can also be used to check the status of claims. Refer to the myCGS® User Manual, Chapter 2: Claims Tab
for detailed instructions. If you are not registered to access myCGS, refer to the Chapter 1: Overview of myCGS for additional information.
How do I find Medicare Advantage Plan contact information?
Medicare Advantage Plan contact information can be found by accessing the Centers for Medicare & Medicaid Services (CMS) MA Plan Directory
. From the Downloads list, select and open the most recent MA Plan Directory ZIP. CGS suggests that you open the second Excel file. Once open, you can perform a find (Ctrl-F) to find the Plan ID along with the contact information.
MA plan information can also be accessed from the myCGS® Web Portal, under the Eligibility Tab, then under Plan Coverage. For additional information, refer to the following myCGS® resources.
- myCGS User Manual, Chapter 4: Eligibility Tab

- myCGS Enhancement: Medicare Advantage and Part D Information
How do I know which modifier to use?
Use the CGS Part B Modifier Finder Tool for assistance with using modifiers correctly. You can search by modifier or keyword, or you can view the entire listing of modifiers.
Where can I find information about Bundling/Reduced Claims?
CGS suggests that you check the National Correct Coding Initiative (NCCI) Edits and the CMS PTP Coding Edits, as well as a CPT Coding booklet before submitting your claim.
If your claim reduced 210a and the claim causing reduction has been corrected, you may contact the Part B Provider Contact Center at 1.866.276.9558, select Option 1.
If your claim did not pay but corrections have been made to the other claim you can simply submit a new claim.
For additional information, you may also refer to the CMS resources for information on the National Correct Coding initiative (NCCI).

