NPI Portal NPI Lookup & Verification

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

Dr. Leslie Spivak, PH.D.

Clinical Social Worker in Babylon, NY · enumerated 2007.

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

National Provider Identifier

1013135607

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Registry record

Entity type Individual (Type 1)
Name Dr. Leslie Spivak
Credential PH.D.
Sex Male
Practice address Babylon, NY, 11702
Phone (631) 661-1922
Enumeration date Apr 22, 2007
Last updated in NPPES Dec 28, 2015

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 R037378-1 (NY) Primary
PHD — Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD 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.

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Frequently asked questions

Is NPI 1013135607 active?
Yes — as of the latest NPPES snapshot, NPI 1013135607 is active (record last updated 2015-12-28).
How do I verify Leslie Spivak's NPI record?
Cross-check NPI 1013135607 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 2015-12-28.