Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Brandon John Nielsen, MD

Student in an Organized Health Care Education/Training Program in Eureka, CA · enumerated 2025.

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

National Provider Identifier

1255125886

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Brandon John Nielsen

Credential MD

Sex Male

Practice address 2700 Dolbeer St, Eureka, CA, 95501

Phone (707) 445-8121

Enumeration date Apr 8, 2025

Last updated in NPPES Apr 8, 2025

Taxonomy & licenses

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care 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

How do I verify Brandon Nielsen's NPI record?

Cross-check NPI 1255125886 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1255125886 active?

Yes, as of the latest NPPES snapshot, NPI 1255125886 is active (record last updated 2025-04-08).

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-04-08.