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

Mr. Duncan Yang

Individual provider Contact Lens Fitter · NPI 1801072418

Mr. Duncan Yang is a Contact Lens Fitter in Rowland Heights, California. Licensed in California. Registered with an NPI since 2008.

Licensed in
CA
In the registry since
2008
Specialties on file
2

Practice location Address checks out

1758 Sierra Leone Ave Ste B
Rowland Heights, CA 91748-5837
Phone: (626) 913-2668
Fax: (626) 913-2198
Show map & directions

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

Specialties & licences

Optician (primary) Taxonomy 156FX1800X · Licence SL4297
Contact Lens Fitter Taxonomy 156FC0801X · Licence CL1231 (CA)

Record details

NPI number1801072418
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedJanuary 14, 2008
Last updated in NPPESJanuary 14, 2008