NPI age
20 years
Enumerated 2006-02-23
● Active
Type 1 · Individual
DR. Thomas O Oei, MD
Oei is 1 of 20 ophthalmology providers in San Antonio and 1 of 139 in Texas.
Primary specialty
Ophthalmology
Plus 1 subspecialty
Licensed in
TX
1 state
Status
Active
No deactivations on record
Last NPPES update
2026-05-01
Source: monthly bulk 2026-05
Sole proprietor
Yes
Solo practice on file
How this provider compares
Across 139 active ophthalmology providers in Texas.
NPI age
20 years
↑ 4 yr above median (16 yr)
State licenses
1 state
28% of peers hold multiple states
Subspecialties
1
In the 77% of peers with subspecialties
NPI lifetime · 2006 → 2026
2006-02Enumerated in NPPES
2006
2026
Where they practice
Practice location
622 Isom Rd
San Antonio, TX 782164464
Mailing address
622 Isom Rd
San Antonio, TX 782164464
Additional practice locations
1 secondary location on file with NPPES.
Location 2
120 Francisco Lemos St S
Kerrville, TX 780285211
Specialties
-
Ophthalmology PrimaryAn ophthalmologist who specializes in the diagnosis and treatment of vitreoretinal diseases.
-
OphthalmologyAn ophthalmologist has the knowledge and professional skills needed to provide comprehensive eye and vision care. Ophthalmologists are medically trained to diagnose, monitor and medically or surgically treat all ocular and visual...
Identifiers
| Type | Value | Notes |
|---|---|---|
| 01 (TX) | 180044173 | RAILROAD MEDICARE |
| 05 (TX) | 098939403 |
Practice context
Part of a multi-provider practice. 8 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.
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