Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Barbara Lynne Lassen

Specialist in Manorville, NY · enumerated 2014.

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

National Provider Identifier

1487056081

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Registry record

Entity type Individual (Type 1)

Name Mrs. Barbara Lynne Lassen

Sex Female

Practice address 203 Dayton Ave, Manorville, NY, 11949

Phone (631) 878-7946

Enumeration date Sep 25, 2014

Last updated in NPPES Sep 25, 2014

Taxonomy & licenses

174400000X Specialist Other Service Providers · License 840579981 (NY) 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 Barbara Lassen practice?

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

What is the NPI number for Barbara Lassen?

The National Provider Identifier (NPI) for Barbara Lassen is 1487056081, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-09-25.