Marissa Valenzuela, MD

Primary specialty

Emergency Medicine PhysicianTaxonomy code 207P00000X

License

A200156 Issued in CA

Practice address

100 W California Blvd
Pasadena, CA 91105-3010

Phone

(626) 397-5111

NPI assigned

Mar 31, 2023

Last updated

Aug 26, 2026By the provider in NPPES

Sex

Female

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Specialty

Emergency Medicine

Education

University of Southern California Keck School of Medicine, 2023

Medicare assignment

May accept Medicare assignment

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

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

{
    "created_epoch": "1680220800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1787702400000",
    "number": "1588369540",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 60259",
            "city": "LOS ANGELES",
            "state": "CA",
            "postal_code": "900600259",
            "telephone_number": "877-346-2211"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "100 W CALIFORNIA BLVD",
            "city": "PASADENA",
            "state": "CA",
            "postal_code": "911053010",
            "telephone_number": "626-397-5111"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "VALENZUELA",
        "first_name": "MARISSA",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2023-03-31",
        "last_updated": "2026-08-26",
        "certification_date": "2026-08-26",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "CA",
            "license": "A200156",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Charlotte Valentine, MS, BCBA
• Millicent Daeleigh Valentine, PSY.D.
• Andrew Valenzuela
• Liliana Valenzuela, ELECTROLOGIST
• Marcelina Adela Valenzuela
• Spencer Valenzuela
• Valerie P. Myers, M.D. Inc
• Yadira Valero, PMHNP
• Jaime Nelson Valladares
• Dennys Valle

• Emergency Medicine Physician in Pasadena, CA
• Providers in Pasadena, CA by specialty
• Emergency Medicine Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 26, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.