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

Individual provider Dentist · NPI 1770789844

Gregory R Lum, DDS is a Dentist in Hayward, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2007
What do these letters mean?
DDS — Doctor of Dental Surgery
A dentist. DDS and DMD are the same qualification — universities choose which title to award.

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Practice location Address checks out

800 W Winton Ave
Hayward, CA 94545-1519
Phone: (510) 782-2466
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Dentist (primary) Taxonomy 122300000X · Licence 23011 (CA)

Record details

NPI number1770789844
Entity typeIndividual (Type 1)
GenderMale
Credentials DDS
Sole proprietorYes
NPI enumeratedJune 25, 2007
Last updated in NPPESAugust 20, 2007
Mailing address800 W Winton Ave, Hayward, CA 94545-1519

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