# WALTER GRENELL JR.

> Is this information incorrect? This page shows public data from NPPES. Update your record in NPPES and this page will update automatically within 7 days. [Update your NPPES record](https://nppes.cms.hhs.gov)

- **Entity:** Individual
- **Status:** Active
- **Sole proprietor:** No

## Provider details

- **NPI number:** 1669714994
- **Gender:** Man
- **Credential:** DO

## Taxonomy

| Code | Description | License number | State | Primary |
| --- | --- | --- | --- | --- |
| 207P00000X | Emergency Medicine Physician | W0917 | TX | — |
| 207PE0004X | Emergency Medical Services (Emergency Medicine) Physician | 0056486 | CO | Yes |
| 207PE0004X | Emergency Medical Services (Emergency Medicine) Physician | 200431 | AK | — |

## Other

- **Enumeration date:** 03/25/2013
- **Last updated:** 09/23/2025