Form 1099-MISC

Form 1099-MISC is an Internal Revenue Service (IRS) tax form that shows payments that CareSource issued to a provider, vendor or independent contractor. Form 1099-MISC is mailed to recipients by January 31 each year.

When CareSource submits Form 1099-MISC to the IRS, if the tax identification number (TIN) and TIN owner name combination does not match IRS records, the IRS issues a CP-2100A notice to CareSource, who in turn sends a B Notice to the provider, vendor or independent contractor for resolution of the discrepancy.

If you have received a B Notice from CareSource, the following Frequently Asked Questions (FAQs) may help you resolve your discrepancy.

Frequently Asked Questions

1. The information on my Form 1099-MISC is incorrect; how do I correct it?

Providers with incorrect contact information or TIN should submit the NavigateHealth Partner Change Request Form.

Vendors and contractors with incorrect contact information or TIN should submit an updated Form W-9 to

For an incorrect dollar amount, please contact Health Partner Services:

Ohio Medicaid, MyCare and Marketplace:  1-800-488-0134 
Ohio Medicare Advantage:  1-844-679-7865
Indiana Medicaid:  1-844-607-2831
Indiana Marketplace:  1-866-286-9949
Kentucky Medicaid:  1-855-852-7005 
Kentucky Marketplace:  1-855-852-5558
Georgia:  1-855-202-1058
West Virginia:  1-855-202-1091

2. What is a TIN?

A TIN is a nine-digit number in the format 12-3456789 or 123-45-6789 that can also be referred to as follows:

  • Tax ID Number
  • TIN – Taxpayer ID Number
  • EIN – Employer Identification Number
  • FEIN – Federal Employer Identification Number
  • Federal Tax ID
  • Federal TIN – Federal Tax ID Number
  • SSN – Social Security Number

3. Why did I receive a B Notice?

You received a B Notice because the name and TIN combination (your SSN or EIN) on your account with us does not match the IRS records.

The IRS calls it a B Notice because backup withholding of 24% is required on future payments to CareSource if the correct ID number is not included in future information filings.

4. What do I need to do with the B Notice?

Complete a Form W-9 and send this to CareSource to the email or fax identified on the B Notice.

Please take the appropriate action to help CareSource correct this problem before the date shown on the B Notice.

If this isn’t corrected in a timely manner, the law requires CareSource to withhold federal backup income taxes at the rate of 24%, and if applicable, state backup withholding income taxes.

5. I have other questions; whom can I contact at CareSource?

If you have other questions about Form 1099-MISC or B Notices, go to or contact Health Partner Services.