Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

James H. Peak, MD

Q: What is the NPI number for James Peak?

The National Provider Identifier (NPI) for James Peak is 1801994264, a Type 1 (individual) record in the CMS NPPES registry.

Psychiatry Physician in Billings, MT · enumerated 2006.

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

National Provider Identifier

1801994264

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Registry record

Entity type Individual (Type 1)

Name James H. Peak

Credential MD

Sex Male

Practice address Billings, MT, 59102

Phone (406) 702-4662

Fax (406) 702-1740

Enumeration date Sep 20, 2006

Last updated in NPPES Oct 14, 2015

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License 7535 (MT) Primary

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
8HZ61Q	Other	MT	MEDICARE CROW
8HZL44	Other	MT	MEDICARE PRYOR
0102388	Other	MT	MDCD PIN
109476900	Other	WY	MDCD PIN
8HZ71Q	Other	MT	MEDICARE LG
000018441	Other	MT	BCBS PIN

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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for James Peak?

The National Provider Identifier (NPI) for James Peak is 1801994264, a Type 1 (individual) record in the CMS NPPES registry.

Where does James Peak practice?

The practice location on file with NPPES is in Billings, MT. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-10-14.