Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

William Stephen Seipp, AU.D.

Audiologist in Lutherville, MD · enumerated 2005.

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

National Provider Identifier

1679574214

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Registry record

Entity type Individual (Type 1)

Name William Stephen Seipp

Credential AU.D.

Sex Male

Practice address 1407 York Rd, Suite 201, Lutherville, MD, 21093

Phone (410) 583-7021

Fax (410) 828-8789

Enumeration date Aug 4, 2005

Last updated in NPPES Nov 5, 2007

Taxonomy & licenses

231H00000X Audiologist Speech, Language and Hearing Service Providers · License 00165 (MD) 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.

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Frequently asked questions

How do I verify William Seipp's NPI record?

Cross-check NPI 1679574214 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1679574214 active?

Yes, as of the latest NPPES snapshot, NPI 1679574214 is active (record last updated 2007-11-05).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-11-05.