SIERRA KATHERINE WILLIAMS OTD, OTR/L
NPI 1699661280
Occupational Therapist in West Hills, CA

Active since June 18, 2025
7300 MEDICAL CENTER DR, WEST HILLS, CA 91307(818) 676-4000 Get Directions Write a Review

NPPES record last updated: June 18, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Sierra Katherine Williams Otd, Otr/l NPPES

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

SIERRA KATHERINE WILLIAMS OTD, OTR/L (NPI 1699661280) is an individual occupational therapist in West Hills, California, licensed in California (25127) and active in the NPI registry since June 2025.

NPPES Registry Identity

NPI1699661280
Entity TypeIndividualFemale
Primary Taxonomy225X00000X
Provider Legal NameSIERRA KATHERINE WILLIAMSCredential: OTD, OTR/L
Location Address7300 MEDICAL CENTER DRWest Hills, CA 91307-1902
Mailing Address19082 Callaway CirHuntington Beach, CA 92648-6703 · (714) 800-0944
Sole ProprietorYes
Enumeration DateJune 18, 2025
NPPES CertifiedJune 18, 2025
NPI 1699661280 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyOccupational TherapistRespiratory, Developmental, Rehabilitative and Restorative Service Providers
Taxonomy Code225X00000X
License Licensed in CA · 25127
Definition
An occupational therapist is a person who has graduated from an entry-level occupational therapy program accredited by the Accreditation Council for Occupational Therapy Education (ACOTE) or predecessor organizations, or approved by the World Federation of Occupational Therapists (WFOT), or an equivalent international occupational therapy education program; has successfully completed a period of supervised fieldwork experience required by the occupational therapy program; has passed a nationally recognized entry-level examination for occupational therapists, and fulfills state requirements for licensure, certification, or registration. An occupational therapist provides interventions based on evaluation and which emphasize the therapeutic use of everyday life activities (i.e., occupations) with individuals or groups for the purpose of facilitating participation in roles and situations and in home, school, workplace, community and other settings. Occupational therapy services are provided for the purpose of promoting health and wellness and are provided to those who have or are at risk for developing an illness, injury, disease, disorder, condition, impairment, disability, activity limitation, or participation restriction. Occupational therapists address the physical, cognitive, psychosocial, sensory, and other aspects of occupational performance in a variety of contexts to support engagement in everyday life activities that affect health, well-being, and quality of life.
7300 MEDICAL CENTER DR, West Hills, CA 91307

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Hospitalist
7300 MEDICAL CENTER DR
WEST HILLS, CA 91307
Nurse Practitioner
7300 MEDICAL CENTER DR
WEST HILLS, CA 91307
Radiology (Diagnostic Radiology)
7300 MEDICAL CENTER DR
WEST HILLS, CA 91307
Emergency Medicine
7300 MEDICAL CENTER DR
WEST HILLS, CA 91307
General Acute Care Hospital
7300 MEDICAL CENTER DR
WEST HILLS, CA 91307
Emergency Medicine
7300 MEDICAL CENTER DR
WEST HILLS, CA 91307
Emergency Medicine
7300 MEDICAL CENTER DR, EMERGENCY DEPARTMENT
WEST HILLS, CA 91307
Nurse Practitioner (Family)
7300 MEDICAL CENTER DR
WEST HILLS, CA 91307

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 Sierra Williams's NPI number?

The NPI number for Sierra Williams is 1699661280. It was assigned to this individual provider in the NPPES registry on June 18, 2025.

Where is Sierra Williams located?

Sierra Williams practices at 7300 Medical Center Dr, West Hills, CA 91307. The listed phone number is (818) 676-4000.

What is Sierra Williams's specialty?

The primary specialty registered for this NPI is Occupational Therapist with taxonomy code 225X00000X.

When was this NPI record last updated?

The NPPES record for Sierra Williams was last updated on June 18, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.