Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Kenneth Mark Sossin, PHD

Psychologist in New Hyde Park, NY · enumerated 2017 · practices at K Mark Sossin Phd & Jan Charone-Sossin Phd, Clinical Psychologists PC.

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

National Provider Identifier

1861917437

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Registry record

Entity type Individual (Type 1)

Name Dr. Kenneth Mark Sossin

Credential PHD

Sex Male

Practice address 1893 Stewart Ave, New Hyde Park, NY, 11040

Phone (516) 326-2401

Fax (516) 326-6973

Enumeration date Aug 4, 2017

Last updated in NPPES Aug 4, 2017

Taxonomy & licenses

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 007858 (NY) Secondary

103TC2200X Clinical Child & Adolescent Psychologist Behavioral Health & Social Service Providers Secondary

103TP0814X Psychoanalysis Psychologist Behavioral Health & Social Service Providers Secondary

103T00000X Psychologist Behavioral Health & Social Service Providers · License 007858 (NY) Primary

PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD credential

Other identifiers

Identifier	Type	State	Issuer
007858	Other	NY	NYS LICENSED PSYCHOLOGIST

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 this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Kenneth Sossin?

Kenneth Sossin is registered in NPPES with the primary taxonomy of Psychologist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

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K Mark Sossin Phd & Jan Charone-Sossin Phd, Clinical Psychologists PC Adolescent and Children Mental Health Clinic/Center · New Hyde Park, NY NPI 1629593298

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-08-04.