Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Mrs. Denise Diane Alexander

Private Vehicle in Chicago, IL · enumerated 2022.

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

National Provider Identifier

1649987801

Verified

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Registry record

Entity type Individual (Type 1)

Name Mrs. Denise Diane Alexander

Sex Female

Practice address Chicago, IL, 60617

Phone (312) 889-8605

Enumeration date Oct 27, 2022

Last updated in NPPES Oct 27, 2022

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

347C00000X Private Vehicle Transportation Services · License A42516459675 (IL) 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 Denise Alexander practice?

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

What is the NPI number for Denise Alexander?

The National Provider Identifier (NPI) for Denise Alexander is 1649987801, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-10-27.