Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Diana C Lee

Q: What is the NPI number for Diana Lee?

The National Provider Identifier (NPI) for Diana Lee is 1578790465, a Type 1 (individual) record in the CMS NPPES registry.

General Practice Dentistry in Redlands, CA · enumerated 2009.

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

National Provider Identifier

1578790465

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Registry record

Entity type Individual (Type 1)

Name Diana C Lee

Sex Female

Practice address 991 Pine Ave Apt 2, Redlands, CA, 92373

Phone (213) 519-6226

Enumeration date Jun 17, 2009

Last updated in NPPES Oct 26, 2009

Taxonomy & licenses

1223G0001X General Practice Dentistry Dental Providers · License 58342 (CA) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Diana Lee practice?

The practice location on file with NPPES is in Redlands, CA. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Diana Lee?

The National Provider Identifier (NPI) for Diana Lee is 1578790465, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-10-26.