Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Alexa Joelle Mack

Q: What is the NPI number for Alexa Mack?

The National Provider Identifier (NPI) for Alexa Mack is 1669243846, a Type 1 (individual) record in the CMS NPPES registry.

Acute Care Nurse Practitioner in Birmingham, AL · enumerated 2024.

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

National Provider Identifier

1669243846

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Registry record

Entity type Individual (Type 1)

Name Alexa Joelle Mack

Sex Female

Practice address 619 19th St S, Birmingham, AL, 35249

Phone (205) 934-3399

Enumeration date Jan 16, 2024

Last updated in NPPES Nov 7, 2025

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License 1-189717 (AL) Secondary

363LA2100X Acute Care Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 1-189717 (AL) 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

What is the NPI number for Alexa Mack?

The National Provider Identifier (NPI) for Alexa Mack is 1669243846, a Type 1 (individual) record in the CMS NPPES registry.

Where does Alexa Mack practice?

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

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-11-07.