Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Donald Joseph Siegel, OD

Optometrist in Sun City West, AZ · enumerated 2006.

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

National Provider Identifier

1912006669

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Registry record

Entity type Individual (Type 1)

Name Mr. Donald Joseph Siegel

Credential OD

Sex Male

Practice address 13540 W Camino Del Sol, Suite 12, Sun City West, AZ, 85375

Phone (623) 544-3877

Fax (623) 544-3834

Enumeration date Sep 21, 2006

Last updated in NPPES Dec 10, 2015

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 1189 (AZ) Primary

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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Donald Siegel practice?

The practice location on file with NPPES is in Sun City West, AZ. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Donald Siegel?

The National Provider Identifier (NPI) for Donald Siegel is 1912006669, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-12-10.