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

Dr. Clarence Sinn Fook Ing, MD

Individual provider Ophthalmology Physician · NPI 1083793947

Dr. Clarence Sinn Fook Ing, MD is an Ophthalmology Physician in Weimar, California. Licensed in California. Registered with an NPI since 2006.

Licensed in
CA
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

20601 W Paoli Ln
Weimar, CA 95736-0486
Phone: (530) 637-4111
Fax: (530) 637-4443
Show map & directions

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

Specialties & licences

Preventive Medicine/Occupational Environmental Medicine Physician (primary) Taxonomy 2083P0500X · Licence A21157 (CA)
Ophthalmology Physician Taxonomy 207W00000X · Licence A21157 (CA)

Record details

NPI number1083793947
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 3, 2006
Last updated in NPPESSeptember 11, 2025