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ROBERT SEAN CASTLE
NPI 1821981945
Counselor - Addiction (Substance Use Disorder) in Fountain Valley, CA

Active since May 29, 2025
18950 MOUNT WALTON CIR, FOUNTAIN VALLEY, CA 92708(714) 316-9578 Get Directions Write a Review

NPPES record last updated: May 29, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Robert Sean Castle NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ROBERT SEAN CASTLE (NPI 1821981945) is an individual addiction (substance use disorder) provider in Fountain Valley, California, licensed in California (R1547870224) and active in the NPI registry since May 2025.

NPPES Registry Identity

NPI1821981945
Entity TypeIndividualMale
Primary Taxonomy101YA0400X
Provider Legal NameROBERT SEAN CASTLE
Location Address18950 MOUNT WALTON CIRFountain Valley, CA 92708-7320
Mailing Address18950 Mount Walton CirFountain Valley, CA 92708-7320 · (714) 316-9578
Phone(714) 316-9578
Sole ProprietorYes
Enumeration DateMay 29, 2025
NPPES CertifiedMay 28, 2025
✔ NPI 1821981945 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · Addiction (Substance Use Disorder)Behavioral Health & Social Service Providers
Taxonomy Code101YA0400X
License✔ Licensed in CA · R1547870224
18950 MOUNT WALTON CIR, Fountain Valley, CA 92708
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Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Robert Castle's NPI number?

The NPI number for Robert Castle is 1821981945. It was assigned to this individual provider in the NPPES registry on May 29, 2025.

Where is Robert Castle located?

Robert Castle practices at 18950 Mount Walton Cir, Fountain Valley, CA 92708. The listed phone number is (714) 316-9578.

What is Robert Castle's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Addiction (Substance Use Disorder), with taxonomy code 101YA0400X.

When was this NPI record last updated?

The NPPES record for Robert Castle was last updated on May 29, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.