NPIMap

Organization Active NPI

Proactive Work Health Medical Center Inc

  • Multi-Specialty Clinic/Center
  • Los Angeles, CA
National Provider Identifier
1336260421
Registry record updated Sep 11, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Multi-Specialty Clinic/CenterTaxonomy code 261QM1300X
Legal business name
PROACTIVE WORK HEALTH MEDICAL CENTER INC
Practice address
1230 W 3Rd St
Los Angeles, CA 90017-1408
Phone
(213) 977-9300
Fax
(213) 977-9600
NPI assigned
Apr 3, 2007
Last updated
Sep 11, 2025By the provider in NPPES
Organization subpart
No

NPPES NPI Registry

Updated by the provider on Sep 11, 2025

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

Authorized official

Name
Stephen R Greene, M.D.NPI 1659577823
Title
President
Phone
(213) 977-9300

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 5

Specialty (taxonomy)CodeLicenseStatePrimary
Multi-Specialty Clinic/Center 261QM1300X Primary
Physical Therapy Clinic/Center 261QP2000X
Primary Care Clinic/Center 261QP2300X
Urgent Care Clinic/Center 261QU0200X
Occupational Medicine Clinic/Center 261QX0100X

Addresses

Primary practice location

1230 W 3Rd St
Los Angeles, CA 90017-1408

Mailing address

1230 W 3Rd St
Los Angeles, CA 90017-1408
Phone (213) 977-9300

National Provider Directory

National Provider Directory

Locations

9421 Winnetka Ave
Unit A
Chatsworth, CA 91311

44451 16th St W
Lancaster, CA 93534

132 S Beaudry Ave
Los Angeles, CA 90012
Phone (213) 977-9300

21 San Miguel Ave
Ste C
Salinas, CA 93901
Phone (831) 754-3635

16360 Roscoe Blvd
Ste 120
Van Nuys, CA 91406

Practitioners & affiliated clinicians

Practitioners 10

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": "1175558400000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1757548800000",
    "number": "1336260421",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1230 W 3RD ST",
            "city": "LOS ANGELES",
            "state": "CA",
            "postal_code": "900171408",
            "telephone_number": "213-977-9300",
            "fax_number": "213-977-9600"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1230 W 3RD ST",
            "city": "LOS ANGELES",
            "state": "CA",
            "postal_code": "900171408",
            "telephone_number": "213-977-9300",
            "fax_number": "213-977-9600"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "PROACTIVE WORK HEALTH MEDICAL CENTER INC",
        "organizational_subpart": "NO",
        "enumeration_date": "2007-04-03",
        "last_updated": "2025-09-11",
        "status": "A",
        "authorized_official_last_name": "GREENE",
        "authorized_official_first_name": "STEPHEN",
        "authorized_official_middle_name": "R",
        "authorized_official_title_or_position": "PRESIDENT",
        "authorized_official_telephone_number": "213-977-9300",
        "authorized_official_credential": "M.D."
    },
    "taxonomies": [
        {
            "code": "261QM1300X",
            "taxonomy_group": "",
            "desc": "Clinic/Center, Multi-Specialty",
            "state": null,
            "license": null,
            "primary": true
        },
        {
            "code": "261QP2000X",
            "taxonomy_group": "",
            "desc": "Clinic/Center, Physical Therapy",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "261QP2300X",
            "taxonomy_group": "",
            "desc": "Clinic/Center, Primary Care",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "261QU0200X",
            "taxonomy_group": "",
            "desc": "Clinic/Center, Urgent Care",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "261QX0100X",
            "taxonomy_group": "",
            "desc": "Clinic/Center, Occupational Medicine",
            "state": null,
            "license": null,
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Los Angeles, CA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 11, 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.