NPI age
19 years
Enumerated 2006-06-08
● Active
Type 1 · Individual
MRS. Nidia P Leon, MD
Leon is 1 of 120 internal medicine providers in San Antonio and 1 of 1318 in Texas.
Primary specialty
Internal Medicine
Plus 1 subspecialty
Licensed in
TX, NV
2 states
Status
Active
No deactivations on record
Last NPPES update
2025-10-21
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org
How this provider compares
Across 1318 active internal medicine providers in Texas.
NPI age
19 years
≈ at median (18 yr)
State licenses
2 states
Top 84% — 15% of peers are multi-state
Subspecialties
0
57% of peers hold subspecialties
NPI lifetime · 2006 → 2026
2006-06Enumerated in NPPES
2006
2026
Where they practice
Practice location
111 Dallas St
San Antonio, TX 782051201
Mailing address
20403 Encino Ledge Unit 592716
San Antonio, TX 782590873
Additional practice locations
3 secondary locations on file with NPPES.
Location 2
8811 Village Dr
San Antonio, TX 782175415
Location 3
1310 McCullough Ave
San Antonio, TX 782125601
Location 4
6211 S New Braunfels Ave
San Antonio, TX 782233175
Specialties
-
Internal Medicine PrimaryAn internist who treats diseases of the lungs and airways. The pulmonologist diagnoses and treats cancer, pneumonia, pleurisy, asthma, occupational and environmental diseases, bronchitis, sleep disorders, emphysema and other complex...
Identifiers
| Type | Value | Notes |
|---|---|---|
| 05 (NV) | 00202087 | |
| 05 (TX) | 322397601 |
Multi-state credentialing: Licensed in 2 states. Useful context for credentialers building cross-state provider networks.
Practice context
Part of a multi-provider practice. 109 other active providers share this practice address in NPPES.
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- 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.