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# August 13, 2026 — Rendering NPI set on sole-prop claims

> Sole-proprietor practices without a group NPI now have the rendering clinician's NPI stamped in box 31, so payers no longer see a blank rendering provider.

<Note>
  Looking for older announcements? See [all past updates](/help/changelog/index).
</Note>

## Bug fixes

### Rendering provider is always populated on sole-proprietor claims

Claims from sole-proprietor practices (practices with **no group NPI** in Practice Settings, where the billing and rendering identity are the same person) now always include the **rendering clinician's Individual NPI** in box 31 of the printed claim.

Previously, when the billing NPI and rendering NPI on a claim were the same Individual NPI, box 31 could be left blank on the printed claim, even though the clinician was correctly attached to the claim internally. Some payers reject a claim with a blank rendering provider or route it slowly.

**Who this affects:** sole-proprietor clinicians, and any practice billing under an Individual (Type-1) NPI without a Type-2 group NPI on file.

**Why it matters:** the rendering provider on the printed claim is what many payers use to confirm who saw the client. A populated box 31 reduces the chance of a rejection or a manual review on claims where the billing and rendering clinician are the same person.

**What to do:**

* No action is needed for new claims. The rendering NPI now appears automatically on the next claim built or resubmitted after this update.
* Claims already submitted are not rewritten. If a previously submitted claim was rejected for a missing rendering provider, resubmit it and box 31 will be included.
* If your practice has a Type-2 group NPI you have not yet added, add it in **Practice Settings** so box 33 continues to bill under the practice. See [Settings and profile](/help/clinician/settings-and-profile).

For more on how claims are assembled, see [How to submit a claim](/help/claims/how-to-submit-a-claim).