Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Brian Christian Macarthur, M.D.

Obstetrics & Gynecology Physician in The Dalles, OR · enumerated 2007 · practices at Columbia River Women'S Clinic, LLC.

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

National Provider Identifier

1356532618

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Registry record

Entity type Individual (Type 1)

Name Brian Christian Macarthur

Credential M.D.

Sex Male

Practice address 1810 E 19th St, Suite 209, The Dalles, OR, 97058

Phone (541) 296-5657

Fax (541) 298-5199

Enumeration date Aug 1, 2007

Last updated in NPPES Jul 9, 2009

Taxonomy & licenses

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians · License MD29016 (OR) 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

What is the NPI number for Brian Macarthur?

The National Provider Identifier (NPI) for Brian Macarthur is 1356532618, a Type 1 (individual) record in the CMS NPPES registry.

Where does Brian Macarthur practice?

The practice location on file with NPPES is in The Dalles, OR. 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 2009-07-09.