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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Lynn O'Brien, ACSW, LCSW

Clinical Social Worker in Forest Hills, NY · enumerated 2006.

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

National Provider Identifier

1770547226

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Registry record

Entity type Individual (Type 1)
Name Ms. Lynn O'Brien
Credential ACSW, LCSW
Sex Female
Practice address 11015 71st Rd, Suite 1 J, Forest Hills, NY, 11375
Phone (917) 225-9207
Enumeration date Apr 13, 2006
Last updated in NPPES Apr 7, 2017

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License R026507-1 (NY) Primary
LCSW · Licensed Clinical Social Worker: A social worker licensed for clinical practice including mental-health therapy. About the LCSW credential

Other identifiers

Identifier Type State Issuer
P3457920 Other NY OXFORD PROVIDER #

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.

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Frequently asked questions

How do I verify Lynn O'Brien's NPI record?
Cross-check NPI 1770547226 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1770547226 active?
Yes, as of the latest NPPES snapshot, NPI 1770547226 is active (record last updated 2017-04-07).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-04-07.