Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Clayton Carl Westphal, O.D.
Optometrist in Glendale, AZ · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1760434351
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Registry record
Entity type Individual (Type 1)
Name Clayton Carl Westphal
Credential O.D.
Sex Male
Practice address 6525 W Sack Dr, #306, Glendale, AZ, 85308
Phone (623) 561-1995
Enumeration date May 16, 2006
Last updated in NPPES Nov 3, 2023
Taxonomy & licenses
OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses.
About the OD 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.
Frequently asked questions
Where does Clayton Westphal practice?
The practice location on file with NPPES is in Glendale, AZ. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Clayton Westphal?
The National Provider Identifier (NPI) for Clayton Westphal is 1760434351, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-11-03.