Ethan Du
Occupational Therapy Assistant • Upland, CA
Professional Overview & Biography Verified Profile Summary
Ethan Du is a registered healthcare professional specializing in Occupational Therapy Assistant in Upland, CA. Practice services are available at 400 N MOUNTAIN AVE STE 100 under active NPI credentials.
Practice Location & Contact Primary Location
400 N Mountain Ave Ste 100
Upland, CA 917865194
Specialty Benchmarks & Practice Insights
Comparative analytics for Occupational Therapy Assistant in Upland, CA
Practicing in Upland, CA (1903 Statewide)
In-Person Office Visits Only
Under CMS Medicare Fee Schedule vs Standard Submitted Charges
Medical Specialties & State Licenses
CMS Verified: 2026-07-03NUCC Taxonomy Code: 224Z00000X
An occupational therapy assistant is a person who has graduated from an occupational therapy assistant program accredited by the Accreditation Council for Occupational Therapy Education (ACOTE) or predecessor organizations, has successfully completed a period of supervised fieldwork experience required by the accredited occupational therapy assistant program, has passed a nationally recognized entry-level examination for occupational therapy assistants, and fulfills state requirements for licensure, certification, or registration. An occupational therapy assistant provides interventions under the supervision of an occupational therapist 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 therapy assistants 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.
Practice Associates & Co-Workers
Healthcare professionals and specialists practicing at this location or sharing practice phone/fax
Orthopaedic Surgery - Sports Medicine
Doctor of Medicine (M.D.)
Physician Assistant
Physician Assistant (Certified)
Physical Therapist - Orthopedic
Doctor of Physical Therapy
Physician Assistant
Physician Assistant (Certified)
Physical Therapist
Physician Assistant
Career & Practice History Timeline
Chronological log of verified NPI updates, location relocations, credentials, and registry changes
NPI status registered as active in NPPES database
Registered at 400 N MOUNTAIN AVE STE 100, UPLAND, CA 917865194 (Tel: 9095964346)
Registered at 3100 GARDENIA LN, YORBA LINDA, CA 928861878
Recorded as ETHAN DU
Occupational Therapy Assistant (License #550205 in CA)
First registered as active Individual Practitioner in NPPES Database.
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NPI Administrative Meta
Mailing Address
3100 Gardenia Ln
Yorba Linda, CA 928861878
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