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

Monica Won Lee

Q: What is the NPI number for Monica Lee?

The National Provider Identifier (NPI) for Monica Lee is 1083578033, a Type 1 (individual) record in the CMS NPPES registry.

Critical Care Medicine Registered Nurse in Winnetka, CA · enumerated 2025.

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

National Provider Identifier

1083578033

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Registry record

Entity type Individual (Type 1)

Name Monica Won Lee

Sex Female

Practice address Winnetka, CA, 91306

Phone (626) 639-7769

Enumeration date Dec 15, 2025

Last updated in NPPES Dec 15, 2025

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

Taxonomy & licenses

163WC0200X Critical Care Medicine Registered Nurse Nursing Service Providers · License 95190595 (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 Monica Lee practice?

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

What is the NPI number for Monica Lee?

The National Provider Identifier (NPI) for Monica Lee is 1083578033, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-12-15.