Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

William Martin Wintermute

Cytotechnology Specialist/Technologist in Phoenix, AZ · enumerated 2007.

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

National Provider Identifier

1366634313

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Registry record

Entity type Individual (Type 1)

Name William Martin Wintermute

Sex Male

Practice address 4212 N 16th St, Phoenix, AZ, 85016

Phone (602) 263-1511

Fax (602) 263-1619

Enumeration date Aug 14, 2007

Last updated in NPPES Aug 28, 2007

Taxonomy & licenses

246QC2700X Cytotechnology Specialist/Technologist Technologists, Technicians & Other Technical Service Providers Primary

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

Is NPI 1366634313 active?

Yes, as of the latest NPPES snapshot, NPI 1366634313 is active (record last updated 2007-08-28).

How do I verify William Wintermute's NPI record?

Cross-check NPI 1366634313 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 2007-08-28.