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

Dr. William Gregory Tseng, DDS

Individual provider General Practice Dentistry · NPI 1821110412

Dr. William Gregory Tseng, DDS is a General Practice Dentistry in Palo Alto, 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

251 High St Ste A
Palo Alto, CA 94301-1041
Phone: (650) 327-8822
Fax: (650) 327-7320
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

General Practice Dentistry (primary) Taxonomy 1223G0001X · Licence 30299 (CA)

Record details

NPI number1821110412
Entity typeIndividual (Type 1)
GenderMale
Credentials DDS
Sole proprietorYes
NPI enumeratedApril 4, 2007
Last updated in NPPESJuly 8, 2007

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