NPI age
1 years
Enumerated 2024-10-24
● Active
Type 1 · Individual
Marlen Caballero Diaz, APRN-CNP
Diaz is 1 of 237 nurse practitioner providers in San Antonio and 1 of 3226 in Texas.
Primary specialty
Nurse Practitioner
Licensed in
TX
1 state
Status
Active
No deactivations on record
Last NPPES update
2026-01-30
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org
How this provider compares
Across 3226 active nurse practitioner providers in Texas.
NPI age
1 years
↓ 5 yr below median (6 yr)
State licenses
1 state
6% of peers hold multiple states
Subspecialties
0
30% of peers hold subspecialties
NPI lifetime · 2024 → 2026
2024-10Enumerated in NPPES
2024
2026
Where they practice
Practice location
4499 Medical Dr
San Antonio, TX 782293735
Mailing address
3500 Oak Lawn Ave Ste Ste 460a Pmb 1574
Dallas, TX 752194308
Additional practice locations
3 secondary locations on file with NPPES.
Location 2
701 Secretary Dr
Arlington, TX 760151623
Location 3
1441 N Beckley Ave
Dallas, TX 752031201
Location 4
559 E Ovilla Rd
Red Oak, TX 751543505
Specialties
-
Nurse Practitioner PrimaryDefinition to come...
Practice context
Part of a multi-provider practice. 75 other active providers share this practice address in NPPES.
Recently enumerated nearby: 6 new nurse practitioner providers have been added in San Antonio 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.