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

Dr. William R. Gianni, DDS

Individual provider Dentist · NPI 1093823080

Dr. William R. Gianni, DDS is a Dentist in Concord, California. Practices as a sole proprietor and works from 2 locations. Licensed in California.

Licensed in
CA
In the registry since
2006
Specialties on file
2
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

2975 Treat Blvd Bldg D
Concord, CA 94518-3601
Phone: (925) 788-5710
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 2999 Regent St, Berkeley, CA 94705-2146 — (510) 848-3143

Specialties & licences

Dentist (primary) Taxonomy 122300000X · Licence 43695 (CA)
Dentist Taxonomy 122300000X · Licence 23247 (CA)

Record details

NPI number1093823080
Entity typeIndividual (Type 1)
GenderMale
Credentials DDS
Sole proprietorYes
NPI enumeratedAugust 29, 2006
Last updated in NPPESFebruary 4, 2025
Certification dateFebruary 4, 2025
Mailing address2141 Dena Dr, Concord, CA 94519-2222

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