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

Miss Merissa Nicole Jennings, LCSW

Clinical Social Worker in Smithtown, NY · enumerated 2010.

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

National Provider Identifier

1245531508

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Registry record

Entity type Individual (Type 1)

Name Miss Merissa Nicole Jennings

Credential LCSW

Sex Female

Practice address Smithtown, NY, 11787

Phone (516) 852-0248

Fax (631) 780-6349

Enumeration date Nov 3, 2010

Last updated in NPPES Mar 13, 2017

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

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 082183-1 (NY) 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 Merissa Jennings's NPI record?

Cross-check NPI 1245531508 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1245531508 active?

Yes, as of the latest NPPES snapshot, NPI 1245531508 is active (record last updated 2017-03-13).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-03-13.