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

Mr. Gary Harnois, DDS

Individual provider Dentist · NPI 1558557835

Mr. Gary Harnois, DDS is a Dentist in Oakland, 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.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

650 International Blvd Ste A
Oakland, CA 94606-2986
Phone: (510) 836-4755
Fax: (510) 836-4715
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Dentist (primary) Taxonomy 122300000X · Licence D21893 (CA)

Record details

NPI number1558557835
Entity typeIndividual (Type 1)
GenderMale
Credentials DDS
Sole proprietorYes
NPI enumeratedSeptember 19, 2007
Last updated in NPPESSeptember 19, 2007
Mailing address650 International Blvd, Suite A, Oakland, CA 94606-2986

Other providers in Oakland