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

Ms. Nicolle Marcia Horowitz, L.P.N., R.N., N.P.

Registered Nurse in Commack, NY · enumerated 2007.

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

National Provider Identifier

1952586604

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Registry record

Entity type Individual (Type 1)

Name Ms. Nicolle Marcia Horowitz

Credential L.P.N., R.N., N.P.

Sex Female

Practice address Commack, NY, 11725

Phone (631) 486-6787

Fax (631) 486-6787

Enumeration date Dec 31, 2007

Last updated in NPPES Dec 31, 2007

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

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License 427022-1 (NY) Primary

164W00000X Licensed Practical Nurse Nursing Service Providers · License 198633-1 (NY) Secondary

363LG0600X Gerontology Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License F340181-1 (NY) Secondary

LPN · Licensed Practical Nurse: A nurse providing basic care under the direction of RNs and physicians. About the LPN credential

Other identifiers

Identifier	Type	State	Issuer
01226186	Medicaid	NY	-

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 Nicolle Horowitz's NPI record?

Cross-check NPI 1952586604 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1952586604 active?

Yes, as of the latest NPPES snapshot, NPI 1952586604 is active (record last updated 2007-12-31).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-12-31.