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

Dr. Barry Allen Mckenzie, M.D.

Surgery Physician in Billings, MT · enumerated 2007.

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

National Provider Identifier

1437367513

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Registry record

Entity type Individual (Type 1)

Name Dr. Barry Allen Mckenzie

Credential M.D.

Sex Male

Practice address Billings, MT, 59101

Phone (406) 238-6470

Enumeration date May 20, 2007

Last updated in NPPES Oct 8, 2013

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

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 11752 (MT) Primary

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

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

Where does Barry Mckenzie practice?

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

What is the NPI number for Barry Mckenzie?

The National Provider Identifier (NPI) for Barry Mckenzie is 1437367513, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-10-08.