NPI age
19 years
Enumerated 2006-10-09
● Active
Type 1 · Individual
Steven Allen Larsen, MD
Larsen is 1 of 13 radiology providers in Pocatello and 1 of 248 in Idaho.
Primary specialty
Radiology
Plus 2 subspecialties
Licensed in
ID, OR, TX
3 states
Status
Active
No deactivations on record
Last NPPES update
2026-02-26
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org
How this provider compares
Across 248 active radiology providers in Idaho.
NPI age
19 years
≈ at median (19 yr)
State licenses
3 states
Top 76% — 23% of peers are multi-state
Subspecialties
0
33% of peers hold subspecialties
NPI lifetime · 2006 → 2026
2006-10Enumerated in NPPES
2006
2026
Where they practice
Practice location
777 Hospital Way, Bldg B
Pocatello, ID 832015175
Mailing address
2265 E Sunnyside Rd, Bldg B
Idaho Falls, ID 834047598
Additional practice locations
3 secondary locations on file with NPPES.
Location 2
1110 N Sarah Dewitt Dr
Gonzales, TX 786293311
Location 3
1110 N Sarah Dewitt Dr
Gonzales, TX 786293311
Location 4
1460 G St
Springfield, OR 974774112
Specialties
-
Radiology PrimaryA radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.
Identifiers
| Type | Value | Notes |
|---|---|---|
| 05 (ID) | 807481100 | |
| 05 (OR) | 005925 |
Multi-state credentialing: Licensed in 3 states. Useful context for credentialers building cross-state provider networks.
Practice context
Part of a multi-provider practice. 144 other active providers share this practice address in NPPES.
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