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

William Derek Williams, PTA

Individual provider Physical Therapy Assistant · NPI 1023516689

William Derek Williams, PTA is a Physical Therapy Assistant in Turlock, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2018
What do these letters mean?
PTA — Physical Therapist Assistant
Delivers treatment under a physical therapist's direction.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

1801 N Olive Ave
Turlock, CA 95382-2568
Phone: (209) 410-7200
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

Physical Therapy Assistant (primary) Taxonomy 225200000X · Licence PTA48756 (CA)

Record details

NPI number1023516689
Entity typeIndividual (Type 1)
GenderMale
Credentials PTA
Sole proprietorYes
NPI enumeratedJanuary 30, 2018
Last updated in NPPESJanuary 30, 2018
Mailing address737 Weghorst St, Indianapolis, IN 46203-2736

Other providers in Turlock