NPI age
18 years
Enumerated 2007-06-26
● Active
Type 1 · Individual
Marshall Steven Cook, M.D.
Cook is 1 of 1 internal medicine providers in Lenore and 1 of 504 in Idaho.
Primary specialty
Internal Medicine
Licensed in
ID
1 state
Status
Active
No deactivations on record
Last NPPES update
2007-07-08
Source: monthly bulk 2026-05
Sole proprietor
Yes
Solo practice on file
How this provider compares
Across 504 active internal medicine providers in Idaho.
NPI age
18 years
↑ 2 yr above median (16 yr)
State licenses
1 state
23% of peers hold multiple states
Subspecialties
0
44% of peers hold subspecialties
NPI lifetime · 2007 → 2026
2007-06Enumerated in NPPES
2007
2026
Where they practice
Practice location
4488 Sunnyside Bench Rd
Lenore, ID 835419614
Mailing address
4488 Sunnyside Bench Rd
Lenore, ID 835419614
Specialties
-
Internal Medicine PrimaryA physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer,...
Practice context
Solo or small practice. No other active providers share this practice address in NPPES. This provider is listed as a sole proprietor.
Provyx · Custom healthcare lists
Need all 504 Internal Medicine providers in Idaho?
Get the full list as a CSV with verified work emails, direct phones, and LinkedIn URLs.
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.