NPI age
18 years
Enumerated 2007-06-06
● Active
Type 1 · Individual
Vicente Lam Siu, M.D.
Lam Siu is 1 of 62 internal medicine providers in San Angelo and 1 of 12343 in Texas.
Primary specialty
Internal Medicine
Licensed in
TX
1 state
Status
Active
No deactivations on record
Last NPPES update
2020-01-29
Source: monthly bulk 2026-05
Sole proprietor
Yes
Solo practice on file
How this provider compares
Across 12343 active internal medicine providers in Texas.
NPI age
18 years
≈ at median (17 yr)
State licenses
1 state
12% of peers hold multiple states
Subspecialties
0
33% of peers hold subspecialties
NPI lifetime · 2007 → 2026
2007-06Enumerated in NPPES
2007
2026
Where they practice
Practice location
120 E Beauregard Ave
San Angelo, TX 769035919
Mailing address
120 E Beauregard Ave
San Angelo, TX 769035919
Specialties
-
Internal Medicine PrimaryA physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer,...
Identifiers
| Type | Value | Notes |
|---|---|---|
| 01 (TX) | 8KD537 | BCBS |
| 05 (TX) | 391439201 |
Practice context
Part of a multi-provider practice. 107 other active providers share this practice address in NPPES.
Recently enumerated nearby: 1 new internal medicine provider has been added in San Angelo in the last 180 days.
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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.