NPI age
5 years
Enumerated 2020-12-08
● Active
Type 1 · Individual
Gregory James Walker, APRN, PMHNP-BC
Walker is 1 of 354 nurse practitioner providers in Austin and 1 of 5095 in Texas.
Primary specialty
Nurse Practitioner
Plus 2 subspecialties
Licensed in
TX, CO
2 states
Status
Active
No deactivations on record
Last NPPES update
2021-12-07
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org
How this provider compares
Across 5095 active nurse practitioner providers in Texas.
NPI age
5 years
≈ at median (4 yr)
State licenses
2 states
Top 89% — 10% of peers are multi-state
Subspecialties
1
In the 30% of peers with subspecialties
NPI lifetime · 2020 → 2026
2020-12Enumerated in NPPES
2020
2026
Where they practice
Practice location
3501 Mills Ave
Austin, TX 787316309
Mailing address
3501 Mills Ave
Austin, TX 787316309
Specialties
-
Nurse Practitioner PrimaryDefinition to come...
-
Registered NurseDefinition to come...
Practice context
Part of a multi-provider practice. 63 other active providers share this practice address in NPPES.
Recently enumerated nearby: 20 new nurse practitioner providers have been added in Austin in the last 180 days.
See all →
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Request a quote →How to verify this provider
- Confirm the NPI on NPPES.The CMS registry is the system of record. Open NPPES →
- Check the state license is currently active.State licensing boards publish current status; NPPES does not.
- Confirm payer enrollment if billing.NPI presence does not guarantee active enrollment with Medicare, Medicaid, or commercial payers.