Organization Active NPI

S Alexander PLLC

  • Psychiatry Physician
  • Honolulu, HI
National Provider Identifier
1952136152
Registry record updated Nov 10, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Psychiatry PhysicianTaxonomy code 2084P0800X
Legal business name
S ALEXANDER PLLC
Practice address
120 Kaiulani Ave Ste KW12
Honolulu, HI 96815-6203
Phone
(808) 378-3662
NPI assigned
Sep 6, 2024
Organization subpart
No

NPPES NPI Registry

Updated by the provider on Nov 10, 2025

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

Authorized official

Name
Dr. Samuel Alexander, DONPI 1255969036
Title
President
Phone
(808) 378-3665

Authorized official NPPES reports the official by name only. The link goes to the one practitioner connected to this organization with that name.

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Psychiatry PhysicianGroup: 193400000X SINGLE SPECIALTY GROUP 2084P0800X Primary

Addresses

Primary practice location

120 Kaiulani Ave Ste KW12
Honolulu, HI 96815-6203

Mailing address

120 Kaiulani Ave Ste KW12
Honolulu, HI 96815-6203
Phone (808) 378-3665

Other practice location 1

10333 El Camino Real
Atascadero, CA 93422-5808
Phone (805) 468-2000

National Provider Directory

National Provider Directory

Locations

10333 El Camino Real
Atascadero, CA 93422
Phone (805) 468-2000

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": "1725580800000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1762732800000",
    "number": "1952136152",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "120 KAIULANI AVE STE KW12",
            "city": "HONOLULU",
            "state": "HI",
            "postal_code": "968156203",
            "telephone_number": "808-378-3665"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "120 KAIULANI AVE STE KW12",
            "city": "HONOLULU",
            "state": "HI",
            "postal_code": "968156203",
            "telephone_number": "808-378-3662"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "10333 El Camino Real",
            "address_purpose": "LOCATION",
            "city": "Atascadero",
            "state": "CA",
            "postal_code": "934225808",
            "country_code": "US",
            "telephone_number": "805-468-2000",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "organization_name": "S ALEXANDER PLLC",
        "organizational_subpart": "NO",
        "enumeration_date": "2024-09-06",
        "last_updated": "2025-11-10",
        "certification_date": "2025-11-10",
        "status": "A",
        "authorized_official_last_name": "ALEXANDER",
        "authorized_official_first_name": "SAMUEL",
        "authorized_official_title_or_position": "PRESIDENT",
        "authorized_official_telephone_number": "808-378-3665",
        "authorized_official_name_prefix": "Dr.",
        "authorized_official_credential": "DO"
    },
    "taxonomies": [
        {
            "code": "2084P0800X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Psychiatry & Neurology, Psychiatry",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Honolulu, HI

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Nov 10, 2025; 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.