Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Lewis S Beckenstein, PH D

Clinical Psychologist in Chappaqua, NY · enumerated 2006.

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

National Provider Identifier

1073616207

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Registry record

Entity type Individual (Type 1)

Name Dr. Lewis S Beckenstein

Credential PH D

Sex Male

Practice address 9 Whitlaw Close, Chappaqua, NY, 10514

Phone (914) 241-3887

Enumeration date Sep 6, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License NY STATE 003024 (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
6802439	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

Where does Lewis Beckenstein practice?

The practice location on file with NPPES is in Chappaqua, NY. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Lewis Beckenstein?

The National Provider Identifier (NPI) for Lewis Beckenstein is 1073616207, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Paula Beckenstein Clinical Social Worker · Chappaque, NY NPI 1275614067

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.