Susan Ann Rethlefsen, P.T.

Primary specialty

Clinical Electrophysiology Physical TherapistTaxonomy code 2251E1300X

License

21 Issued in CA

Practice address

4650 W Sunset Blvd MSC 69
Los Angeles, CA 90027-6062

Phone

(323) 669-4120

Fax

(323) 666-4409

NPI assigned

Feb 26, 2007

Last updated

Sep 11, 2025By 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 2

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

State licenses

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

{
    "created_epoch": "1172448000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757548800000",
    "number": "1063548543",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4650 W SUNSET BLVD MSC 69",
            "city": "LOS ANGELES",
            "state": "CA",
            "postal_code": "900276062",
            "telephone_number": "323-669-4120",
            "fax_number": "323-666-4409"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4650 W SUNSET BLVD MSC 69",
            "city": "LOS ANGELES",
            "state": "CA",
            "postal_code": "900276062",
            "telephone_number": "323-669-4120",
            "fax_number": "323-666-4409"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "RETHLEFSEN",
        "first_name": "SUSAN",
        "middle_name": "ANN",
        "name_prefix": "Ms.",
        "credential": "P.T.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2007-02-26",
        "last_updated": "2025-09-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2251E1300X",
            "taxonomy_group": "",
            "desc": "Physical Therapist, Electrophysiology, Clinical",
            "state": "CA",
            "license": "21",
            "primary": true
        },
        {
            "code": "2251P0200X",
            "taxonomy_group": "",
            "desc": "Physical Therapist, Pediatrics",
            "state": "CA",
            "license": "13000",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

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• Physical Therapist in Los Angeles, CA
• Providers in Los Angeles, CA by specialty
• Physical Therapist in California

• 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.