Registry record
- NPI
- 1972109684
- Profession
- Nurse Practitioner (NP)
- Specialty
- Psychiatric/Mental Health Nurse Practitioner (363LP0808X)
- Practice address
- 3501 Mills Ave
Austin, TX 78731 - Phone
- 5123242020
- In the registry since
- December 8, 2020
- Last NPPES update
- December 7, 2021
- Sole proprietor
- No
- License
- 1017007 (TX)
At this location
2 other providers in our data list 3501 Mills Ave, Austin as a practice address:
- Ezenwanyi Gift Efuribe, MPH,MSN,PMHNP-BC
Psychiatric/Mental Health Nurse Practitioner · NPI 1124700315
- Aubrey Werzner, MA, MSN, LPC, APRN
Psychiatric/Mental Health Nurse Practitioner · NPI 1346654241
In context
The NPI number of Gregory Walker is 1972109684. They are a Psychiatric/Mental Health Nurse Practitioner in Austin, Texas.
Gregory Walker is one of 310 Psychiatric/Mental Health Nurse Practitioners in Austin and one of 4,351 across Texas in our data. Austin ranks #4 among Texas cities in our dataset, with 2,782 NP and PA providers.
The NPI has been in the federal registry for 5 years, since December 8, 2020.
Frequently asked questions
What is NPI 1972109684?
NPI 1972109684 is the 10-digit National Provider Identifier assigned to Gregory Walker, a Psychiatric/Mental Health Nurse Practitioner practicing in Austin, Texas. The record has been in the NPPES registry since December 8, 2020.
How do I verify this provider?
Cross-check NPI 1972109684 in the official CMS registry at npiregistry.cms.hhs.gov, and confirm license 1017007 with the TX licensing board. You can also run the number through our free NPI validator to confirm its checksum.
Is this information current?
This profile reflects the June 2026 NPPES data file. NPPES lists the record's last update as December 7, 2021. We refresh our data each month when CMS publishes a new file.
Data: NPPES public registry, June 2026 file. Not medical advice. Verify independently before care or credentialing decisions. Errors in the source record can be corrected at nppes.cms.hhs.gov; see our corrections page.