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

Dr. Alejandro Diaz, PHD, LCSW

Mental Health Counselor in Tuckahoe, NY · enumerated 2019.

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

National Provider Identifier

1033679592

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Registry record

Entity type Individual (Type 1)

Name Dr. Alejandro Diaz

Credential PHD, LCSW

Sex Male

Practice address Tuckahoe, NY, 10707

Phone (914) 793-9719

Enumeration date Mar 21, 2019

Last updated in NPPES Mar 21, 2019

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

Taxonomy & licenses

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers · License 062358 (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
1035180	Other	NY	BEACON HEALTH
523977	Other	NY	VALUE OPTIONS
BORITO	Other	NY	OPTUM

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 Alejandro Diaz's NPI record?

Cross-check NPI 1033679592 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1033679592 active?

Yes, as of the latest NPPES snapshot, NPI 1033679592 is active (record last updated 2019-03-21).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-03-21.