NPI age
19 years
Enumerated 2006-08-25
● Active
Type 1 · Individual
Katherine A. Harrison, M.D.
Harrison is 1 of 446 emergency medicine providers in San Antonio and 1 of 6039 in Texas.
Primary specialty
Emergency Medicine
Plus 1 subspecialty
Licensed in
TX, MA
2 states
Status
Active
No deactivations on record
Last NPPES update
2023-03-27
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org
How this provider compares
Across 6039 active emergency medicine providers in Texas.
NPI age
19 years
↑ 4 yr above median (15 yr)
State licenses
2 states
Top 82% — 17% of peers are multi-state
Subspecialties
0
43% of peers hold subspecialties
NPI lifetime · 2006 → 2026
2006-08Enumerated in NPPES
2006
2026
Where they practice
Practice location
3551 Roger Brooke Dr
San Antonio, TX 782344504
Mailing address
3551 Roger Brooke Dr
San Antonio, TX 782344504
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....
Identifiers
| Type | Value | Notes |
|---|---|---|
| 05 (MA) | 2014106 | |
| 01 (TX) | 166513519 | CSHCN |
| 05 (TX) | 166513518 |
Multi-state credentialing: Licensed in 2 states. Useful context for credentialers building cross-state provider networks.
Practice context
Part of a multi-provider practice. 365 other active providers share this practice address in NPPES.
Recently enumerated nearby: 2 new emergency medicine providers have been added in San Antonio in the last 180 days.
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Request a quote →How to verify this provider
- 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.