NPI Portal NPI Lookup & Verification

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

Michael S Gottlieb, F.N.P-BC(ANCC) M.S.N

Nurse Practitioner in Ronkonkoma, NY · enumerated 2017.

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

National Provider Identifier

1215462205

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Registry record

Entity type Individual (Type 1)
Name Michael S Gottlieb
Credential F.N.P-BC(ANCC) M.S.N
Sex Male
Practice address Ronkonkoma, NY, 11779
Fax (206) 350-1094
Enumeration date Apr 27, 2017
Last updated in NPPES Oct 23, 2023

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

Taxonomy & licenses

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License F-341691 (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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1215462205 active?
Yes, as of the latest NPPES snapshot, NPI 1215462205 is active (record last updated 2023-10-23).
How do I verify Michael Gottlieb's NPI record?
Cross-check NPI 1215462205 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-10-23.