NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Thomas James Harris III, PHARM-D

Pharmacist in Helena, MT · enumerated 2011 · practices at Walgreen Co..

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

National Provider Identifier

1821374877

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Thomas James Harris III
Credential PHARM-D
Sex Male
Practice address 1150 11th Ave, Helena, MT, 59601
Fax (406) 442-6417
Enumeration date Oct 21, 2011
Last updated in NPPES Oct 21, 2011

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License 6276 (MT) Primary
PHARMD · Doctor of Pharmacy: A licensed pharmacist with a professional doctorate in pharmacy. About the PHARMD 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 1821374877 active?
Yes, as of the latest NPPES snapshot, NPI 1821374877 is active (record last updated 2011-10-21).
How do I verify Thomas Harris's NPI record?
Cross-check NPI 1821374877 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 2011-10-21.