Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Alexandra Rattien, LCSW

Social Worker in Dix Hills, NY · enumerated 2008.

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

National Provider Identifier

1689833220

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Registry record

Entity type Individual (Type 1)

Name Alexandra Rattien

Credential LCSW

Sex Female

Practice address 197 Half Hollow Rd, Dix Hills, NY, 11746

Phone (631) 370-1721

Enumeration date Jun 9, 2008

Last updated in NPPES May 8, 2024

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers Primary

LCSW · Licensed Clinical Social Worker: A social worker licensed for clinical practice including mental-health therapy. About the LCSW 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

How do I verify Alexandra Rattien's NPI record?

Cross-check NPI 1689833220 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1689833220 active?

Yes, as of the latest NPPES snapshot, NPI 1689833220 is active (record last updated 2024-05-08).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-05-08.