CareSource

How To Submit Claims To CareSource

Provider-side claims submission guidance for CareSource, including channels, payer IDs, paper addresses, and follow-up resources.

For CareSource, the practical claims workflow usually starts with electronic submission guidance and only falls back to paper instructions when the payer documents a mailing address for specific claim types or exceptions. The details below keep the workflow broad instead of reducing it to a single address.

At a glance

  • CareSource Nevada Medicaid accepts both electronic and paper claims. The preferred route is online submission through the Provider Portal; the provider manual also lists EDI through Availity, with payer ID NVCS1. Paper claims must use current CMS/NUCC forms and cannot be handwritten or submitted as superbills. Corrected claims require the original claim number and must be coded as replacements.

Submission channels

  • Provider Portal
  • EDI through Availity
  • Paper claim forms

Electronic claims payer IDs

  • NVCS1

Paper claims addresses

  • CareSource Attn: Claims Department, P.O. Box 3607, Dayton, OH 45401

Corrected claims and follow-up

  • Include the original CareSource claim number on corrected claims

  • EDI corrected claims should use CLM05-3 value '7' (Replacement) and REF02 qualifier 'F8' with the original reference/claim number

  • Professional paper corrected claims: put '7' in the left-hand side of Box 22 and the original claim number in the right-hand side

  • Institutional paper corrected claims: put the original claim number in Box 64 and a valid bill frequency code in Box 4

  • If a corrected claim is submitted without the required information, it may be processed as an original claim and rejected or denied as a duplicate

  • Claims status resource 1

  • Claims status resource 2

Caveats

  • The Nevada Medicaid provider manual and Nevada claims page should be used together because the page is high-level while the manual contains operational detail.
  • The manual says portal submission is available to traditional providers, community partners, delegates and health homes.
  • Paper claim processing rules require the current CMS/NUBC/NUCC form versions.

Provider resources

Sources

FactValueSourceConfidence
Online and paper claims acceptedCareSource accepts claims in a variety of formats, including online and paper claims.Officialhigh
Provider Portal claims submissionProviders may submit claims through the secure, online Provider Portal.Officialhigh
EDI clearinghouse and payer IDCareSource currently accepts electronic claims from Nevada providers through Availity; payer ID number: NVCS1.Officialhigh
Corrected claim codingUse CLM05-3 value '7' (Replacement) and REF02 qualifier 'F8' with the original claim number for corrected EDI claims.Officialhigh
Paper claim mailing addressCareSource Attn: Claims Department, P.O. Box 3607, Dayton, OH 45401.Officialhigh

Last reviewed: March 27, 2026

Sources used: 2 official