NPI age
— years
Enumerated 2025-12-09
● Active
Type 1 · Individual
Madeline Caldwell Walker, RN
Walker is 1 of 1 registered nurse providers in Austin and 1 of 47 in Texas.
Primary specialty
Registered Nurse
Licensed in
TX
1 state
Status
Active
No deactivations on record
Last NPPES update
2025-12-09
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org
How this provider compares
Across 47 active registered nurse providers in Texas.
NPI age
0 years
≈ at median (1 yr)
State licenses
1 state
0% of peers hold multiple states
Subspecialties
0
0% of peers hold subspecialties
NPI lifetime · 2025 → 2026
2025-12Enumerated in NPPES
2025
2026
Where they practice
Practice location
1601 Trinity St Stop 804
Austin, TX 787121866
Mailing address
1601 Trinity St Stop 804
Austin, TX 787121866
Specialties
-
Registered Nurse PrimaryDefinition to come...
Practice context
Part of a multi-provider practice. 3 other active providers share this practice address in NPPES.
Provyx · Custom healthcare lists
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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.