NPIMap

Organization Active NPI

Mental Health Systems, Inc.

  • Community/Behavioral Health Agency
  • San Diego, CA
National Provider Identifier
1043732944
Registry record updated Jul 24, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Community/Behavioral Health AgencyTaxonomy code 251S00000X
Legal business name
MENTAL HEALTH SYSTEMS, INC.
Practice address
8775 Aero Dr Ste 132
San Diego, CA 92123-1779
Phone
(858) 573-2600
NPI assigned
Jul 12, 2017
Organization subpart
No

NPPES NPI Registry

Updated by the provider on Jul 24, 2026

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

Authorized official

Name
James C. Callaghan Jr.
Title
President/Ceo
Phone
(858) 573-2600

Specialties & licenses 1

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

Addresses

Primary practice location

8775 Aero Dr Ste 132
San Diego, CA 92123-1779

Mailing address

9465 Farnham St
San Diego, CA 92123-1308

Other names 1

  • City Star ACT Doing business as

Medicare participation

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

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
O20050512000474 CA Part B Supplier - Clinic/Group Practice 8628019320 Receives reassigned benefits from 74 practitioners
20 other NPIs on this enrollment
This NPI is an additional NPI on the enrollment
Practice locations: Fresno, CA; Vista, CA; Santee, CA; San Jose, CA; San Diego, CA; Escondido, CA; Oceanside, CA

Other NPIs on the same Medicare enrollment 15

NPIs listed together on one Medicare enrollment, typically parts of the same organization.

View all 15

National Provider Directory

National Provider Directory
Tax ID family
Mental Health Systems48 organizations share this tax ID, including this one

Other organizations with this tax ID 47

Organizations that report the same tax identification number in the National Provider Directory.

View all 47

Locations

8775 Aero Dr
Ste 132
San Diego, CA 92123
Phone (858) 609-8742

Practitioners & affiliated clinicians

Practitioners 1

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles.

NPI Registry JSON

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

{
    "created_epoch": "1499817600000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1784851200000",
    "number": "1043732944",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "9465 FARNHAM ST",
            "city": "SAN DIEGO",
            "state": "CA",
            "postal_code": "921231308"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "8775 AERO DR STE 132",
            "city": "SAN DIEGO",
            "state": "CA",
            "postal_code": "921231779",
            "telephone_number": "858-573-2600"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "MENTAL HEALTH SYSTEMS, INC.",
        "organizational_subpart": "NO",
        "enumeration_date": "2017-07-12",
        "last_updated": "2026-07-24",
        "certification_date": "2026-07-24",
        "status": "A",
        "authorized_official_last_name": "CALLAGHAN",
        "authorized_official_first_name": "JAMES",
        "authorized_official_middle_name": "C.",
        "authorized_official_title_or_position": "PRESIDENT/CEO",
        "authorized_official_telephone_number": "858-573-2600",
        "authorized_official_name_suffix": "Jr."
    },
    "taxonomies": [
        {
            "code": "251S00000X",
            "taxonomy_group": "",
            "desc": "Community/Behavioral Health",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "organization_name": "City Star ACT",
            "code": "3",
            "type": "Doing Business As"
        },
        {
            "organization_name": "City Star ACT",
            "code": "3",
            "type": "Doing Business As"
        }
    ]
}

Other providers in San Diego, CA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 24, 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.