Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Marc Lee Caldwell, AU.D.

Audiologist in Tacoma, WA · enumerated 2008.

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

National Provider Identifier

1528236031

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Registry record

Entity type Individual (Type 1)

Name Marc Lee Caldwell

Credential AU.D.

Sex Male

Practice address 9600 Veterans Dr, Tacoma, WA, 98493

Phone (253) 583-1817

Enumeration date Feb 19, 2008

Last updated in NPPES Feb 10, 2009

Taxonomy & licenses

231H00000X Audiologist Speech, Language and Hearing Service Providers · License LD00004672 (WA) Primary

AUD · Doctor of Audiology: A licensed audiologist diagnosing and treating hearing and balance disorders. About the AUD 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 1528236031 active?

Yes, as of the latest NPPES snapshot, NPI 1528236031 is active (record last updated 2009-02-10).

How do I verify Marc Caldwell's NPI record?

Cross-check NPI 1528236031 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-02-10.