Insurance & Eligibility · Eligibility Troubleshooting
Invalid Member ID #
An invalid-member-ID response points to a problem with the identifier submitted to the payer or its expected format.
What to do #
- Compare the member ID with the insurance card or approved source.
- Check letters, numbers, prefixes, suffixes, and leading zeros.
- Confirm the ID is attached to the correct payer.
- Correct the patient coverage record when the source shows a mismatch.
- Rerun eligibility.

Verify before you finish #
- No digit or letter was transposed.
- Member ID and group number are in the correct fields.
- The identifier belongs to the intended subscriber/policy.
Important
Member IDs are payer-specific. Do not alter formatting unless the payer/source supports the change.