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

Brian Derk

Pharmacist in Danville, PA · enumerated 2015.

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

National Provider Identifier

1891169850

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Registry record

Entity type Individual (Type 1)

Name Brian Derk

Sex Male

Practice address Danville, PA, 17822

Phone (570) 271-6451

Enumeration date Nov 13, 2015

Last updated in NPPES Nov 13, 2015

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

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License RP041680L (PA) Primary

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 Derk's NPI record?

Cross-check NPI 1891169850 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1891169850 active?

Yes, as of the latest NPPES snapshot, NPI 1891169850 is active (record last updated 2015-11-13).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-11-13.