NPI Portal NPI Lookup & Verification

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

Mr. Brian Douglas Caswell, R.PH.

Community/Retail Pharmacy in Baxter Springs, KS · enumerated 2020 · practices at Wolkar Drug Inc.

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

National Provider Identifier

1689288391

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Registry record

Entity type Individual (Type 1)
Name Mr. Brian Douglas Caswell
Credential R.PH.
Sex Male
Practice address Baxter Springs, KS, 66713
Fax (620) 856-3455
Enumeration date Sep 1, 2020
Last updated in NPPES Sep 1, 2020

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

Taxonomy & licenses

3336C0003X Community/Retail Pharmacy Suppliers · License 2-13206 (KS) Primary
RPH · Registered Pharmacist: A licensed pharmacist registered with a state board of pharmacy. About the RPH 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.

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Frequently asked questions

Is NPI 1689288391 active?
Yes, as of the latest NPPES snapshot, NPI 1689288391 is active (record last updated 2020-09-01).
How do I verify Brian Caswell's NPI record?
Cross-check NPI 1689288391 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-09-01.