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

Justin Matthew Ammen

Individual provider Occupational Therapy Assistant · NPI 1972231074

Justin Matthew Ammen is an Occupational Therapy Assistant in Rosemead, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2022

Practice location Address checks out

9337 Marshall St
Rosemead, CA 91770-2028
Phone: (626) 475-8680
Show map & directions

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

Specialties & licences

Occupational Therapy Assistant (primary) Taxonomy 224Z00000X · Licence 462171 (CA)

Record details

NPI number1972231074
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorYes
NPI enumeratedAugust 8, 2022
Last updated in NPPESAugust 8, 2022
Certification dateAugust 8, 2022

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