NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. William Paul Barron, RPH

Pharmacist in Elburn, IL · enumerated 2011.

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

National Provider Identifier

1003196643

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Mr. William Paul Barron
Credential RPH
Sex Male
Practice address 1001 N Main St, Elburn, IL, 60119
Phone (630) 365-9176
Fax (630) 365-4032
Enumeration date Aug 26, 2011
Last updated in NPPES Aug 26, 2011

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License 051-028275 (IL) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1003196643 active?
Yes, as of the latest NPPES snapshot, NPI 1003196643 is active (record last updated 2011-08-26).
How do I verify William Barron's NPI record?
Cross-check NPI 1003196643 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-08-26.