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

Diann Ardessi, OT

Individual provider Occupational Therapist · NPI 1306179650

Diann Ardessi, OT is an Occupational Therapist in Fontana, California. Licensed in California. Registered with an NPI since 2009.

Licensed in
CA
In the registry since
2009
What do these letters mean?
OT — Occupational Therapist
Helps people regain the skills needed for daily living and work.

See every abbreviation used in this directory →

Practice location Address checks out

14392 Valley Blvd
Fontana, CA 92335-5240
Phone: (909) 574-2106
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Occupational Therapist (primary) Taxonomy 225X00000X · Licence 7595 (CA)

Record details

NPI number1306179650
Entity typeIndividual (Type 1)
GenderFemale
Credentials OT
Sole proprietorNo
NPI enumeratedSeptember 17, 2009
Last updated in NPPESSeptember 17, 2009

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