NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Robert John Horon, PHD

Clinical Psychologist in Napa, CA · enumerated 2007 · practices at Dr. Jagdish K. Soni Psychological Services, PC.

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

National Provider Identifier

1740473552

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Robert John Horon
Credential PHD
Sex Male
Practice address 1580 1st St, Napa, CA, 94559
Phone (707) 258-8757
Fax (707) 253-0457
Enumeration date Aug 24, 2007
Last updated in NPPES May 7, 2024

Taxonomy & licenses

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License PSY15003 (CA) 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
PSY150030 Medicaid CA -

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

What is the NPI number for Robert Horon?
The National Provider Identifier (NPI) for Robert Horon is 1740473552, a Type 1 (individual) record in the CMS NPPES registry.
Where does Robert Horon practice?
The practice location on file with NPPES is in Napa, CA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-05-07.