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Last Modified: 8/24/2011
Location: FL, PR, USVI
Business: Part A, Part B
How to avoid rejects of Medicare/Medicaid crossover claims
Are your Medicaid crossover claims rejecting?
If you answered yes, it may be due to the address you have on file with Medicare and Medicaid. When Medicare crosses over your claim to Medicaid the following address fields are submitted:
• Master address
• Pay-to (or remit address) (if they are different on Medicare’s system)
If Medicaid does not have the same addresses in their file, Medicaid will reject the claim.
Medicaid validates the crossover claims as follows:
1. National provider identifier (NPI)
2. NPI to taxonomy code (if applicable)
3. NPI to ZIP code
What can you do to avoid rejects?
• Verify that you have the exact same addresses on file with both Medicare and Medicaid
How to update your Medicare enrollment record
If you do not have the correct addresses on file with Medicare, please update your enrollment file by completing the appropriate CMS-855 form. To expedite the processing of your application, please use the Internet-based Provider Enrollment, Chain, and Ownership System (PECOS) 
.
. How to update your Medicaid enrollment record
To update your addresses with Medicaid, you have two choices.
• Access Medicaid’s secure Web portal, click on “Demographics”’ and then “Address,” to update the address.
• Contact Medicaid’s provider enrollment customer service lines at 1-800-289-7799 (option 4), and they will fax the appropriate paperwork to you.
Medicaid also requires a notarized copy of your W9 -- showing your new address -- which may be submitted via fax. Their fax number is 1-866-270-1497.
You may use Medicaid’s Web portal to create a fax coversheet, which should include: Attention: Provider Enrollment. Medicaid also recommends that you add your provider ID number to all pages within your document (including the fax cover sheet).
