NPI Portal NPI Lookup & Verification

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

Dr. Brian Niel Christiansen, DPM

Foot Surgery Podiatrist in Oak Ridge, TN · enumerated 2005 · practices at Arches Foot Care LLC.

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

National Provider Identifier

1922095454

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Registry record

Entity type Individual (Type 1)
Name Dr. Brian Niel Christiansen
Credential DPM
Sex Male
Practice address Oak Ridge, TN, 37830
Fax (865) 482-1789
Enumeration date Sep 30, 2005
Last updated in NPPES Aug 9, 2022

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

Taxonomy & licenses

213ES0131X Foot Surgery Podiatrist Podiatric Medicine & Surgery Service Providers · License 680 (TN) Primary
DPM · Doctor of Podiatric Medicine: A physician specializing in medical and surgical care of the foot and ankle. About the DPM credential

Other identifiers

Identifier Type State Issuer
3350013 Medicaid TN -
690000247 Other TN TAX IDENTIFICATION NUMBER

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

How do I verify Brian Christiansen's NPI record?
Cross-check NPI 1922095454 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1922095454 active?
Yes, as of the latest NPPES snapshot, NPI 1922095454 is active (record last updated 2022-08-09).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-08-09.