NPI age
20 years
Enumerated 2006-01-27
● Active
Type 1 · Individual
DR. Mark W Peterson, M.D.
Peterson is 1 of 4 radiology providers in Lewiston and 1 of 23 in Idaho.
Primary specialty
Radiology
Plus 1 subspecialty
Licensed in
ID
1 state
Status
Active
No deactivations on record
Last NPPES update
2025-09-11
Source: monthly bulk 2026-05
Sole proprietor
Not specified
May be part of a larger org
How this provider compares
Across 23 active radiology providers in Idaho.
NPI age
20 years
≈ at median (19 yr)
State licenses
1 state
26% of peers hold multiple states
Subspecialties
1
In the 69% of peers with subspecialties
NPI lifetime · 2006 → 2026
2006-01Enumerated in NPPES
2006
2026
Where they practice
Practice location
415 6th St
Lewiston, ID 835012431
Mailing address
531 4th Ave
Lewiston, ID 835012450
Specialties
-
Radiology PrimaryA radiologist who diagnoses and treats diseases by various radiologic imaging modalities. These include fluoroscopy, digital radiography, computed tomography, sonography and magnetic resonance imaging.
-
RadiologyA radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.
Identifiers
| Type | Value | Notes |
|---|---|---|
| 01 | P00165374 | RAILROAD MEDICARE |
| 01 (WA) | 0192980 | LABOR & INDUSTRIES |
| 01 (ID) | 000010005909 | REGENCE BS OF IDAHO |
| 01 (ID) | 71498 | BLUE CROSS OF IDAHO |
| 05 (WA) | 8156473 |
Practice context
Part of a multi-provider practice. 119 other active providers share this practice address in NPPES.
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