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MS. SUSAN ANN RETHLEFSEN P.T.
NPI 1063548543
Physical Therapist - Electrophysiology, Clinical in Los Angeles, CA

Active since February 26, 2007
4650 W SUNSET BLVD MSC 69, LOS ANGELES, CA 90027(323) 669-4120(323) 666-4409 Get Directions Write a Review

NPPES record last updated: September 11, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Ms. Susan Ann Rethlefsen P.t. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MS. SUSAN ANN RETHLEFSEN P.T. (NPI 1063548543) is an individual electrophysiology, clinical provider in Los Angeles, California, licensed in California (21) and active in the NPI registry since February 2007.

NPPES Registry Identity

NPI1063548543
Entity TypeIndividualFemale
Primary Taxonomy2251E1300X
Provider Legal NameMS. SUSAN ANN RETHLEFSENCredential: P.T.
Location Address4650 W SUNSET BLVD MSC 69Los Angeles, CA 90027-6062
Mailing Address4650 W Sunset Blvd Msc 69Los Angeles, CA 90027-6062 · (323) 669-4120 · Fax (323) 666-4409
Phone(323) 669-4120
Fax(323) 666-4409
Sole ProprietorNo
Enumeration DateFebruary 26, 2007
Last NPPES UpdateSeptember 11, 2025
✔ NPI 1063548543 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPhysical Therapist · Electrophysiology, ClinicalRespiratory, Developmental, Rehabilitative and Restorative Service Providers
Taxonomy Code2251E1300X
License✔ Licensed in CA · 21
Definition
A licensed physical therapist, including but not limited to an individual who is a Board Certified Specialist in Clinical Electrophysiologic Physical Therapy, who has demonstrated specialized knowledge and skill in electrophysiologic examinations and evaluations and encompasses both the professional and technical components of the observation, recording, analysis, and interpretation of bioelectric muscle and nerve potentials, detected by means of surface or needle electrodes, for the purpose of evaluating the integrity of the neuromuscular system. Electrophysiologic evaluations include, but are not limited to, electrodiagnostic testing, which includes clinical needle electromyography, motor and sensory nerve conduction studies, and other evoked potential procedures.
Also ListedPhysical Therapist · PediatricsTaxonomy 2251P0200X · License 13000 (CA)
4650 W SUNSET BLVD MSC 69, Los Angeles, CA 90027
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Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Susan Rethlefsen's NPI number?

The NPI number for Susan Rethlefsen is 1063548543. It was assigned to this individual provider in the NPPES registry on February 26, 2007.

Where is Susan Rethlefsen located?

Susan Rethlefsen practices at 4650 W Sunset Blvd Msc 69, Los Angeles, CA 90027. The listed phone number is (323) 669-4120.

What is Susan Rethlefsen's specialty?

The primary specialty registered for this NPI is Physical Therapist, specializing in Electrophysiology, Clinical, with taxonomy code 2251E1300X.

When was this NPI record last updated?

The NPPES record for Susan Rethlefsen was last updated on September 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.