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

Sydney Preston, MS, CCC-SLP

Individual provider Speech-Language Pathologist · NPI 1790201879

Sydney Preston, MS, CCC-SLP is a Speech-Language Pathologist in San Dimas, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2017
What do these letters mean?
MS — Master of Science
A graduate science degree.
CCC-SLP — Certificate of Clinical Competence in Speech-Language Pathology
A speech-language pathologist certified by ASHA.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

1314 W Gladstone St
San Dimas, CA 91773-1611
Phone: (909) 971-8204
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Speech-Language Pathologist (primary) Taxonomy 235Z00000X · Licence 31160 (CA)

Record details

NPI number1790201879
Entity typeIndividual (Type 1)
GenderFemale
Credentials MS , CCC-SLP
Sole proprietorYes
NPI enumeratedAugust 21, 2017
Last updated in NPPESAugust 7, 2026
Certification dateAugust 7, 2026

Other providers in San Dimas