NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Alexa Harris

Family Nurse Practitioner in Mill Valley, CA · enumerated 2025.

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

National Provider Identifier

1033004585

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Alexa Harris
Sex Female
Practice address 655 Redwood Hwy Frontage Rd Ste 246, Mill Valley, CA, 94941
Phone (415) 301-5000
Enumeration date Jun 12, 2025
Last updated in NPPES Apr 8, 2026

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License 95436612 (CA) Secondary
363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 95037939 (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 Alexa Harris practice?
The practice location on file with NPPES is in Mill Valley, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Alexa Harris?
The National Provider Identifier (NPI) for Alexa Harris is 1033004585, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-04-08.