Individual provider Active NPI

Alexa Rivera

  • Physician Assistant
  • Los Angeles, CA
National Provider Identifier
1952013435
Registry record updated Sep 16, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Physician AssistantTaxonomy code 363A00000X
License
PA66687 Issued in CA
Practice address
8635 W 3Rd St Ste 795W
Los Angeles, CA 90048-6129
Phone
(310) 423-5874
Fax
(310) 423-0139
NPI assigned
Dec 16, 2022
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Sep 16, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Physician Assistant 363A00000X PA66687 CA Primary

Addresses

Primary practice location

8635 W 3Rd St Ste 795W
Los Angeles, CA 90048-6129

Mailing address

4140 W 190TH St
Torrance, CA 90504-5513
Phone (310) 423-5874

Other practice location 1

1000 S Fremont Ave
Alhambra, CA 91803-8800
Phone (661) 370-6997

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CA
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: No
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20251001004153 CA Practitioner - Physician Assistant 5890291512 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Physician Assistant
Education
Other, 2025
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Cedars-Sinai Medical Care FoundationGroup PAC ID 0941106645, 1,684 clinicians
Cedars-Sinai Medical CenterGroup PAC ID 0446169114, 788 clinicians

Practice addresses (Care Compare)

4650 Lincoln Blvd
Marina del Rey, CA 90292-6306
Phone (310) 823-8911

8700 Beverly Blvd
West Hollywood, CA 90048-1804
Phone (310) 423-5000

Hospital & facility affiliations

  • Cedars-Sinai Medical Center Hospital, Los Angeles, CA, CCN 050625
  • Cedar-Sinai Marina del Rey Hospital Hospital, Marina del Rey, CA, CCN 050740

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Physician Assistant

State licenses

LicenseStateTypeSpecialty
66687CAMDMental Health Counselor
PA66687CAMDPhysician Assistant

Practice roles

OrganizationSpecialtyStatusNew patients
Cedars-Sinai Medical Care Foundation CurrentSince Jan 28, 2026 Accepting new patients
Cedars-Sinai Medical Center CurrentSince Sep 1, 2025 Accepting new patients
Cedars-Sinai Medical Center CurrentSince Sep 1, 2025 Accepting new patients

Locations

8635 W 3rd St
Ste 465W
Los Angeles, CA 90048
Phone (310) 423-0674

8635 W 3rd St
Ste 795W
Los Angeles, CA 90048
Phone (310) 423-8350

4140 W 190th St
Torrance, CA 90504
Phone (310) 967-1780

4650 Lincoln Blvd
Venice, CA 90292
Phone (310) 577-5505

8700 Beverly Blvd
West Hollywood, CA 90048
Phone (310) 385-3291

Organizations & group practices 3

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.

Hospital & facility affiliations 3

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

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

{
    "created_epoch": "1671148800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757980800000",
    "number": "1952013435",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4140 W 190TH ST",
            "city": "TORRANCE",
            "state": "CA",
            "postal_code": "905045513",
            "telephone_number": "310-423-5874",
            "fax_number": "310-423-0139"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "8635 W 3RD ST STE 795W",
            "city": "LOS ANGELES",
            "state": "CA",
            "postal_code": "900486129",
            "telephone_number": "310-423-5874",
            "fax_number": "310-423-0139"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1000 S Fremont Ave",
            "address_purpose": "LOCATION",
            "city": "Alhambra",
            "state": "CA",
            "postal_code": "918038800",
            "country_code": "US",
            "telephone_number": "661-370-6997",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "RIVERA",
        "first_name": "ALEXA",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2022-12-16",
        "last_updated": "2025-09-16",
        "certification_date": "2025-09-16",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "CA",
            "license": "PA66687",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Los Angeles, CA

Sources for this page

Verify at the official NPI Registry.