Newly Listed Provider — this NPI profile has been added to the NPI registry within the last 90 days.

CASTLEGATE LLC
NPI 1386556900
Clinic/Center in Fountain Valley, CA

Q: What is Castlegate LLC's NPI number?

The NPI number for Castlegate LLC is 1386556900. It was assigned to this organization in the NPPES registry on September 18, 2026. The provider is doing business as Huntington Beach Mental Health.

Q: What is Castlegate LLC's specialty?

The primary specialty registered for this NPI is Clinic/Center with taxonomy code 261Q00000X.

Q: When was this NPI record last updated?

The NPPES record for Castlegate LLC was last updated on September 18, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since September 18, 2026

11640 WARNER AVE STE 542, FOUNTAIN VALLEY, CA 92708(714) 330-2442(714) 494-8636 Get Directions Write a Review

NPPES record added: September 18, 2026. Verified against the NPPES registry weekly; last sync: September 20, 2026.

On this page

About Castlegate Llc NPPES

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

CASTLEGATE LLC (NPI 1386556900), doing business as Huntington Beach Mental Health, is a healthcare organization registered as a clinic/center in Fountain Valley, California and active in the NPI registry since September 2026. The organization lists Nicholas Risse, Ceo, as its authorized official.

NPPES Registry Identity

NPI1386556900

Entity TypeOrganization

Primary Taxonomy261Q00000X

Legal Business NameCASTLEGATE LLC

Location Address11640 WARNER AVE STE 542Fountain Valley, CA 92708-2513

Mailing AddressPo Box 3880Costa Mesa, CA 92628 · (714) 330-2442 · Fax (714) 494-8636

Phone(714) 330-2442

Fax(714) 494-8636

Organization SubpartNo

Authorized OfficialNicholas RisseCeo · (714) 330-2442

Enumeration DateSeptember 18, 2026

NPPES CertifiedSeptember 17, 2026

✔ NPI 1386556900 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyClinic/CenterAmbulatory Health Care Facilities

Taxonomy Code261Q00000X

Definition

A facility or distinct part of one used for the diagnosis and treatment of outpatients. Clinic/Center is irregularly defined, sometimes being limited to organizations serving specialized treatment requirements or distinct patient/client groups (e.g., radiology, poor, and public health).

11640 WARNER AVE STE 542, Fountain Valley, CA 92708

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Other Names 1

Doing Business AsHuntington Beach Mental Health

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 Castlegate LLC's NPI number?

The NPI number for Castlegate LLC is 1386556900. It was assigned to this organization in the NPPES registry on September 18, 2026. The provider is doing business as Huntington Beach Mental Health.

Where is Castlegate LLC located?

Castlegate LLC is located at 11640 Warner Ave Ste 542, Fountain Valley, CA 92708. The listed phone number is (714) 330-2442.

What is Castlegate LLC's specialty?

The primary specialty registered for this NPI is Clinic/Center with taxonomy code 261Q00000X.

When was this NPI record last updated?

The NPPES record for Castlegate LLC was last updated on September 18, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.