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

Gerard Joseph Bernal Sim, OD

Individual provider Optometrist · NPI 1669363883

Gerard Joseph Bernal Sim, OD is an Optometrist in Grand Terrace, California. Licensed in California. Registered with an NPI since 2025.

Licensed in
CA
In the registry since
2025
What do these letters mean?
OD — Doctor of Optometry
An optometrist: examines eyes, prescribes glasses and contacts, and treats many eye conditions.

See every abbreviation used in this directory →

Practice location Address checks out

11980 Mount Vernon Ave
Grand Terrace, CA 92313-5172
Phone: (951) 654-0803
Show map & directions

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

Specialties & licences

Optometrist (primary) Taxonomy 152W00000X · Licence OPT36072-TLG (CA)

Record details

NPI number1669363883
Entity typeIndividual (Type 1)
GenderMale
Credentials OD
Sole proprietorNo
NPI enumeratedJuly 15, 2025
Last updated in NPPESJuly 22, 2025
Certification dateJuly 22, 2025
Mailing address786 Newbury Way, Diamond Bar, CA 91765-4625

Other providers in Grand Terrace