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

Mrs. Ellen Stark, LSW

Q: What is the NPI number for Ellen Stark?

The National Provider Identifier (NPI) for Ellen Stark is 1801169420, a Type 1 (individual) record in the CMS NPPES registry.

Rehabilitation Psychologist in Las Vegas, NV · enumerated 2012.

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

National Provider Identifier

1801169420

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Registry record

Entity type Individual (Type 1)

Name Mrs. Ellen Stark

Credential LSW

Sex Female

Practice address Las Vegas, NV, 89113

Phone (702) 650-6508

Fax (702) 893-9655

Enumeration date Feb 13, 2012

Last updated in NPPES Feb 13, 2012

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

Taxonomy & licenses

103TR0400X Rehabilitation Psychologist Behavioral Health & Social Service Providers · License 44SL04303600 (NJ) 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 Ellen Stark?

The National Provider Identifier (NPI) for Ellen Stark is 1801169420, a Type 1 (individual) record in the CMS NPPES registry.

Where does Ellen Stark practice?

The practice location on file with NPPES is in Las Vegas, NV. 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 2012-02-13.