Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Gregg Arthur Marshall, MD

Surgery Physician in Logan, UT · enumerated 2007.

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

National Provider Identifier

1013134550

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Registry record

Entity type Individual (Type 1)

Name Gregg Arthur Marshall

Credential MD

Sex Male

Practice address 1350 N 500 E, Logan, UT, 84341

Phone (435) 716-1950

Enumeration date Apr 19, 2007

Last updated in NPPES Sep 14, 2021

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 9679367-1205 (UT) Secondary

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License M-11722 (ID) Primary

MD — Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD 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

How do I verify Gregg Marshall's NPI record?

Cross-check NPI 1013134550 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1013134550 active?

Yes — as of the latest NPPES snapshot, NPI 1013134550 is active (record last updated 2021-09-14).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-09-14.