NPI age
20 years
Enumerated 2005-06-22
● Active
Type 1 · Individual
William C L Wu, M.D.
Wu is 1 of 189 internal medicine providers in San Antonio and 1 of 2301 in Texas.
Primary specialty
Internal Medicine
Plus 2 subspecialties
Licensed in
TX
1 state
Status
Active
No deactivations on record
Last NPPES update
2012-03-29
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org
How this provider compares
Across 2301 active internal medicine providers in Texas.
NPI age
20 years
≈ at median (19 yr)
State licenses
1 state
11% of peers hold multiple states
Subspecialties
2
In the 37% of peers with subspecialties
NPI lifetime · 2005 → 2026
2005-06Enumerated in NPPES
2005
2026
Where they practice
Practice location
927 McCullough Ave
San Antonio, TX 782151630
Mailing address
927 McCullough Ave
San Antonio, TX 782151630
Specialties
-
Internal Medicine PrimaryAn internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.
-
Internal MedicineAn area of medicine within the subspecialty of cardiology, which uses specialized imaging and other diagnostic techniques to evaluate blood flow and pressure in the coronary arteries and chambers of the heart and uses technical...
-
SpecialistAn individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.
Identifiers
| Type | Value | Notes |
|---|---|---|
| 05 (TX) | 128253506 | |
| 05 (TX) | 128253507 | |
| 01 (TX) | 060047582 | RAILROAD MEDICARE |
| 01 (TX) | 84850G | BCBS |
| 05 (TX) | 128253504 | |
| 01 (TX) | 8CK583 | BCBS |
| 01 (TX) | 8CU338 | BCBS |
Practice context
Part of a multi-provider practice. 1 other active provider shares 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.