NPIMap

Organization Active NPI

County of Riverside

Doing business as MHSA Mental Health Court/Jail

  • Community/Behavioral Health Agency
  • Riverside, CA
National Provider Identifier
1861690216
Registry record updated Apr 22, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Community/Behavioral Health AgencyTaxonomy code 251S00000X
Legal business name
COUNTY OF RIVERSIDE
Doing business as
MHSA Mental Health Court/Jail
Western JI JOT
Practice address
3499 10TH St
Riverside, CA 92501-3617
Phone
(951) 328-2281
NPI assigned
Jul 6, 2007
Last updated
Apr 22, 2026By the provider in NPPES
Organization subpart
No

NPPES NPI Registry

Updated by the provider on Apr 22, 2026

Registry information is reported by the provider to CMS and is not verified. About this source

Authorized official

Name
Dr. Matthew Chang
Title
Director Ruhs - Behavioral Health
Phone
(951) 358-4500

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Community/Behavioral Health Agency 251S00000X Primary

Addresses

Primary practice location

3499 10TH St
Riverside, CA 92501-3617

Mailing address

PO Box 7659
Riverside, CA 92513
Phone (951) 358-6900

Other names 2

  • MHSA Mental Health Court/Jail Doing business as
  • Western JI JOT Doing business as

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CA

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
O20040310001107 CA Part B Supplier - Clinic/Group Practice 6507754488 Receives reassigned benefits from 362 practitioners
This NPI is an additional NPI on the enrollment

National Provider Directory

National Provider Directory
Tax ID family
Riverside Neighborhood245 organizations share this tax ID, including this one

Organizations with this tax ID in the same state 24

This tax ID family is large, so up to 24 of its organizations in the same state are linked here.

View all 24

Locations

1330 W Ramsey St
Ste 100
Banning, CA 92220
Phone (951) 849-7142

3499 10th St
Riverside, CA 92501
Phone (951) 358-4544

Practitioners & affiliated clinicians

Practitioners 1

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles, and the practitioner matching its NPPES authorized official.

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1183680000000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1776816000000",
    "number": "1861690216",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 7659",
            "city": "RIVERSIDE",
            "state": "CA",
            "postal_code": "92513",
            "telephone_number": "951-358-6900"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3499 10TH ST",
            "city": "RIVERSIDE",
            "state": "CA",
            "postal_code": "925013617",
            "telephone_number": "951-328-2281"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "COUNTY OF RIVERSIDE",
        "organizational_subpart": "NO",
        "enumeration_date": "2007-07-06",
        "last_updated": "2026-04-22",
        "certification_date": "2026-04-22",
        "status": "A",
        "authorized_official_last_name": "CHANG",
        "authorized_official_first_name": "MATTHEW",
        "authorized_official_title_or_position": "DIRECTOR RUHS - BEHAVIORAL HEALTH",
        "authorized_official_telephone_number": "951-358-4500",
        "authorized_official_name_prefix": "Dr."
    },
    "taxonomies": [
        {
            "code": "251S00000X",
            "taxonomy_group": "",
            "desc": "Community/Behavioral Health",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "organization_name": "MHSA Mental Health Court/Jail",
            "code": "3",
            "type": "Doing Business As"
        },
        {
            "organization_name": "MHSA Mental Health Court/Jail",
            "code": "3",
            "type": "Doing Business As"
        },
        {
            "organization_name": "Western JI JOT",
            "code": "3",
            "type": "Doing Business As"
        }
    ]
}

Other providers in Riverside, CA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 22, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.