Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

John Dietel

Individual provider Occupational Therapist · NPI 1104941640

John Dietel is an Occupational Therapist in Ontario, California. Licensed in Delaware and Pennsylvania. Registered with an NPI since 2007.

Licensed in
DE, PA
In the registry since
2007
Specialties on file
2

Practice location Address checks out

1661 S Euclid Ave
Ontario, CA 91762-5826
Phone: (909) 984-6713
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Occupational Therapist (primary) Taxonomy 225X00000X · Licence U1-0000690 (DE)
Occupational Therapist Taxonomy 225X00000X · Licence OC007485L (PA)

Record details

NPI number1104941640
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedMarch 21, 2007
Last updated in NPPESJanuary 27, 2023
Certification dateJanuary 27, 2023

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