NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Clemens Isaac Woertendyke, AU.D.

Audiologist in Martinez, CA · enumerated 2025 · practices at Department of Veterans Affairs.

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

National Provider Identifier

1710780051

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Clemens Isaac Woertendyke
Credential AU.D.
Sex Male
Practice address 150 Muir Road, Building 25 Floor 2, Martinez, CA, 94553
Phone (925) 372-2062
Enumeration date Mar 31, 2025
Last updated in NPPES Mar 31, 2025

Taxonomy & licenses

231H00000X Audiologist Speech, Language and Hearing Service Providers · License 147002037 (IL) 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

Where does Clemens Woertendyke practice?
The practice location on file with NPPES is in Martinez, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Clemens Woertendyke?
The National Provider Identifier (NPI) for Clemens Woertendyke is 1710780051, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-03-31.