NPI age
5 years
Enumerated 2020-12-23
● Active
Type 1 · Individual
Anna Marie Birks, APRN, FNP-C
Birks is 1 of 1395 nurse practitioner providers in San Antonio and 1 of 22123 in Texas.
Primary specialty
Nurse Practitioner
Plus 1 subspecialty
Licensed in
TX, AZ
2 states
Status
Active
No deactivations on record
Last NPPES update
2022-12-08
Source: monthly bulk 2026-05
Sole proprietor
Yes
Solo practice on file
How this provider compares
Across 22123 active nurse practitioner providers in Texas.
NPI age
5 years
↓ 2 yr below median (7 yr)
State licenses
2 states
Top 94% — 5% of peers are multi-state
Subspecialties
1
In the 23% of peers with subspecialties
NPI lifetime · 2020 → 2026
2020-12Enumerated in NPPES
2020
2026
Where they practice
Practice location
540 Madison Oak Dr Ste 450
San Antonio, TX 782583932
Mailing address
540 Madison Oak Dr Ste 450
San Antonio, TX 782583932
Specialties
-
Nurse Practitioner PrimaryDefinition to come...
-
Nurse Practitioner(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum...
Identifiers
| Type | Value | Notes |
|---|---|---|
| 01 (TX) | 1030488 | TEXAS BOARD OF NURSING |
Multi-state credentialing: Licensed in 2 states. Useful context for credentialers building cross-state provider networks.
Practice context
Part of a multi-provider practice. 1 other active provider shares this practice address in NPPES.
Recently enumerated nearby: 31 new nurse practitioner providers have been added in San Antonio in the last 180 days.
See all →
Provyx · Custom healthcare lists
Need all 22123 Nurse Practitioner providers in Texas?
Get the full list as a CSV with verified work emails, direct phones, and LinkedIn URLs.
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.