Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Nancy Lynn Muskin, MS CRC, LMHC

Mental Health Counselor in Ossining, NY · enumerated 2007.

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

National Provider Identifier

1780883934

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Registry record

Entity type Individual (Type 1)

Name Ms. Nancy Lynn Muskin

Credential MS CRC, LMHC

Sex Female

Practice address 22 Rockledge Ave, Ossining, NY, 10562

Phone (914) 944-5220

Fax (914) 941-1289

Enumeration date Jul 17, 2007

Last updated in NPPES Feb 17, 2021

Taxonomy & licenses

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers · License 000380 (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.

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Frequently asked questions

How do I verify Nancy Muskin's NPI record?

Cross-check NPI 1780883934 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1780883934 active?

Yes, as of the latest NPPES snapshot, NPI 1780883934 is active (record last updated 2021-02-17).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-02-17.