Individual provider Active NPI

Alexa M.J. Zaker

  • Addiction (Substance Use Disorder) Counselor
  • San Diego, CA
National Provider Identifier
1518656982
Registry record updated Aug 11, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Addiction (Substance Use Disorder) CounselorTaxonomy code 101YA0400X
Practice address
6244 El Cajon Blvd Ste 17
San Diego, CA 92115-3918
Phone
(619) 287-8225
NPI assigned
May 2, 2023
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Aug 11, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Addiction (Substance Use Disorder) Counselor 101YA0400X CA Primary

Addresses

Primary practice location

6244 El Cajon Blvd Ste 17
San Diego, CA 92115-3918

Mailing address

11251 Paseo Montanoso Apt 164
San Diego, CA 92127-5934

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Not listed in the public Medicare enrollment file

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Not enrolled

Practice roles

OrganizationSpecialtyStatusNew patients
Mental Health Systems, Inc. PastSince May 7, 2023 Accepting new patients

Organizations & group practices 1

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

NPI Registry JSON

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

{
    "created_epoch": "1682985600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1786406400000",
    "number": "1518656982",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "11251 PASEO MONTANOSO APT 164",
            "city": "SAN DIEGO",
            "state": "CA",
            "postal_code": "921275934"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "6244 EL CAJON BLVD STE 17",
            "city": "SAN DIEGO",
            "state": "CA",
            "postal_code": "921153918",
            "telephone_number": "619-287-8225"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "ZAKER",
        "first_name": "ALEXA",
        "middle_name": "M.J.",
        "name_prefix": "Ms.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2023-05-02",
        "last_updated": "2026-08-11",
        "certification_date": "2026-08-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "101YA0400X",
            "taxonomy_group": "",
            "desc": "Counselor, Addiction (Substance Use Disorder)",
            "state": "CA",
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

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 Aug 11, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.