NPI age
19 years
Enumerated 2006-08-03
● Active
Type 1 · Individual
Gregory M Keelen, DO
Keelen is 1 of 13 emergency medicine providers in Denison and 1 of 6039 in Texas.
Primary specialty
Emergency Medicine
Licensed in
TX
1 state
Status
Active
No deactivations on record
Last NPPES update
2024-01-22
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
1 state
17% of peers hold multiple states
Subspecialties
0
43% of peers hold subspecialties
NPI lifetime · 2006 → 2026
2006-08Enumerated in NPPES
2006
2026
Where they practice
Practice location
5016 Us-75, Tmc Emergency Department
Denison, TX 75020
Mailing address
5016 Us Hwy 75
Denison, TX 750204584
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 |
|---|---|---|
| 01 (TX) | P00312435 | RR MEDICARE |
| 05 (TX) | 188205201 | |
| 01 (TX) | 8V3644 | BLUE CROSS BLUE SHIELD |
Practice context
Solo or small practice. No other active providers share this practice address in NPPES.
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