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

Mr. William To, PA

Individual provider Physician Assistant · NPI 1336425644

Mr. William To, PA is a Physician Assistant in Garden Grove, California. Qualified in 2004, 22 years ago. Practices with University Surgeons of Orange a Medical Group, a 120-clinician group, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
22
Licensed in
CA
In the registry since
2011
What do these letters mean?
PA — Physician Assistant
A licensed clinician who examines, diagnoses and treats under a physician's supervision.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

12555 Garden Grove Blvd Ste 504
Garden Grove, CA 92843-1903
Phone: (714) 537-5609
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

Physician Assistant (primary) Taxonomy 363A00000X · Licence PA21861 (CA)

Record details

NPI number1336425644
Entity typeIndividual (Type 1)
GenderMale
Credentials PA
Sole proprietorNo
NPI enumeratedNovember 1, 2011
Last updated in NPPESNovember 1, 2011

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPHYSICIAN ASSISTANT
Medical schoolOTHER
Graduated 2004 (22 years in practice)
Group practice University Surgeons Of Orange A Medical Group — 120 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Other providers in Garden Grove