Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Roger A Cook, MD

Anesthesiology Physician in Pocatello, ID · enumerated 2007.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1003966227

Verified

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Registry record

Entity type Individual (Type 1)

Name Roger A Cook

Credential MD

Sex Male

Practice address 777 Hospital Way, Pocatello, ID, 83201

Phone (208) 239-1000

Enumeration date Jan 11, 2007

Last updated in NPPES May 13, 2026

Taxonomy & licenses

207L00000X Anesthesiology Physician Allopathic & Osteopathic Physicians · License MD229174 (OR) Secondary

207L00000X Anesthesiology Physician Allopathic & Osteopathic Physicians · License M11396 (ID) Primary

207L00000X Anesthesiology Physician Allopathic & Osteopathic Physicians · License 11302 (MT) Secondary

207L00000X Anesthesiology Physician Allopathic & Osteopathic Physicians · License MD-54947 (IA) Secondary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
1003966227	Medicaid	ID	-
11302	Other	MT	MONTANA LICENSE NUMBER
M11396	Other	ID	IDAHO MEDICAL LICENSE

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Roger Cook?

Roger Cook is registered in NPPES with the primary taxonomy of Anesthesiology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-05-13.