NPI age
19 years
Enumerated 2007-01-16
● Active
Type 1 · Individual
Robert Charles Allen, D.O.
Allen is 1 of 446 emergency medicine providers in San Antonio and 1 of 6039 in Texas.
Primary specialty
Emergency Medicine
Plus 2 subspecialties
Licensed in
TX, CA, NV
3 states
Status
Active
No deactivations on record
Last NPPES update
2012-04-10
Source: monthly bulk 2026-05
Sole proprietor
Yes
Solo practice on file
How this provider compares
Across 6039 active emergency medicine providers in Texas.
NPI age
19 years
↑ 4 yr above median (15 yr)
State licenses
3 states
Top 82% — 17% of peers are multi-state
Subspecialties
0
43% of peers hold subspecialties
NPI lifetime · 2007 → 2026
2007-01Enumerated in NPPES
2007
2026
Where they practice
Practice location
21418 Catlin Ct
San Antonio, TX 782582518
Mailing address
21418 Catlin Ct
San Antonio, TX 782582518
Specialties
-
Emergency Medicine PrimaryAn emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department....
Practice context
Solo or small practice. No other active providers share this practice address in NPPES. This provider is listed as a sole proprietor.
Recently enumerated nearby: 2 new emergency medicine providers have been added in San Antonio 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.