Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Barrett Marshall, DDS

General Practice Dentistry in Muskegon, MI · enumerated 2021.

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

National Provider Identifier

1497422679

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Registry record

Entity type Individual (Type 1)

Name Barrett Marshall

Credential DDS

Sex Male

Practice address 132 Ruddiman Dr, Muskegon, MI, 49445

Phone (206) 549-0323

Enumeration date Aug 25, 2021

Last updated in NPPES Aug 25, 2021

Taxonomy & licenses

1223G0001X General Practice Dentistry Dental Providers · License 2901601115 (MI) Primary

DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS 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 1497422679 active?

Yes, as of the latest NPPES snapshot, NPI 1497422679 is active (record last updated 2021-08-25).

How do I verify Barrett Marshall's NPI record?

Cross-check NPI 1497422679 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-08-25.