Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Justin Biddle, NP

Nurse Practitioner in Greenbrae, CA · enumerated 2024.

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

National Provider Identifier

1477383859

Verified

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Registry record

Entity type Individual (Type 1)

Name Justin Biddle

Credential NP

Sex Male

Practice address 1350 S Eliseo Dr Ste 200, Greenbrae, CA, 94904

Phone (415) 925-5000

Enumeration date Aug 1, 2024

Last updated in NPPES Nov 19, 2025

Taxonomy & licenses

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 95031004 (CA) Primary

NP · Nurse Practitioner: An advanced practice registered nurse with graduate training, licensed to diagnose and treat, often with prescriptive authority. About the NP 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

Is NPI 1477383859 active?

Yes, as of the latest NPPES snapshot, NPI 1477383859 is active (record last updated 2025-11-19).

How do I verify Justin Biddle's NPI record?

Cross-check NPI 1477383859 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-11-19.