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

Mr. Thomas Evan Marrinan, RPH

Pharmacist in Polson, MT · enumerated 2012.

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

National Provider Identifier

1730424615

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Registry record

Entity type Individual (Type 1)
Name Mr. Thomas Evan Marrinan
Credential RPH
Sex Male
Practice address Polson, MT, 59860
Phone (406) 883-5541
Fax (406) 883-3512
Enumeration date Dec 4, 2012
Last updated in NPPES Dec 6, 2012

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

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License 3629 (MT) 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

Where does Thomas Marrinan practice?
The practice location on file with NPPES is in Polson, MT. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Thomas Marrinan?
The National Provider Identifier (NPI) for Thomas Marrinan is 1730424615, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-12-06.