Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Nathaniel D'Urville Isaac, PSY.D.

Clinical Psychologist in Hampton, VA · enumerated 2010.

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

National Provider Identifier

1538499579

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Registry record

Entity type Individual (Type 1)

Name Dr. Nathaniel D'Urville Isaac

Credential PSY.D.

Sex Male

Practice address 2202 Executive Dr Ste C, Hampton, VA, 23666

Phone (757) 827-7707

Fax (757) 838-2573

Enumeration date Jan 13, 2010

Last updated in NPPES Mar 19, 2025

Taxonomy & licenses

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 071008221 (IL) Primary

PSYD — Doctor of Psychology: A clinical doctorate in psychology focused on professional practice. About the PSYD credential

Other identifiers

Identifier	Type	State	Issuer
1538499579	Medicaid	VA	—

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 Nathaniel Isaac practice?

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

What is the NPI number for Nathaniel Isaac?

The National Provider Identifier (NPI) for Nathaniel Isaac is 1538499579, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-03-19.