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William R. Gianni, DDS

  • Concord, CA
  • Dentist
NPI1093823080
Industry payments
$44
Affiliated sites
1
Medical group
1
State license
1
Year NPI issued
2006
Practice address
2999 Regent St, Berkeley, CA 94705-2146
Practice phone
Call (510) 848-3143
Professional email
Get professional email
Personal email
Get personal email
Mobile number
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Social profiles

Primary practice

Williamtennantdds/williamgiannidds

Dental practice · Berkeley, California

See all 2 affiliations

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William R. Gianni is a dentist in Concord, California

William Gianni practices at Williamtennantdds/williamgiannidds in Berkeley, California.

William Gianni's NPI, 1093823080, was assigned on August 29, 2006. William Gianni holds California license 43695.

NPI and contact details
NPI
1093823080NPI Registry (opens in a new tab)
NPI enumeration date
August 29, 2006
NPI status
Active
Practice phone
(510) 848-3143
Professional email
Get email
Personal email
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Mobile number
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Sex
Male

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

William R. Gianni practices in Berkeley and Concord

William Gianni's primary practice is Williamtennantdds/williamgiannidds, at 2999 Regent St, Berkeley, CA 94705-2146. The practice phone is (510) 848-3143. The NPI Registry lists William Gianni's practice address as 2975 Treat Blvd Bldg D, Concord, CA 94518.

  • Williamtennantdds/williamgianniddsPrimary
    2999 Regent St, Berkeley, CA 94705-2146Phone(510) 848-3143
  • NPI Registry address
    2975 Treat Blvd Bldg D, Concord, CA 94518Phone(925) 788-5710

Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data

William R. Gianni is affiliated with 1 site of care and 1 medical group

William Gianni's primary practice is Williamtennantdds/williamgiannidds in Berkeley, California. Dmand AI also links William Gianni to 1 medical group, named with a free account.

Williamtennantdds/williamgianniddsDental practice · Berkeley, CaliforniaPrimary
1 medical groupName with a free account
See all 2 affiliations for William Gianni

Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dmand AI tracks the EHR system at William R. Gianni's practice

Dmand AI tracks the electronic health record (EHR) system at each site where William Gianni practices. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Williamtennantdds/williamgianniddsAvailable with a free account
+1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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William R. Gianni is one of 6,282 dentists in California

Dentist is William Gianni's primary specialty in the NPI Registry, under taxonomy code 122300000X. William Gianni is licensed in California.

Specialties and state licenses

  • Dentist, CaliforniaPrimaryLicense 43695 · taxonomy 122300000X

Dentists near William Gianni

Counts of dentists with a Dmand AI profile, by place and practice. Each opens the list.

6,282dentists in California14dentists in Concord

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

William R. Gianni received $44 in industry payments in 2025

CMS Open Payments shows 1 general payment to William Gianni from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Zimvie Inc. paid the most, $44.

Companies that paid William Gianni the most, 2025 to 2025

Share is of all general payments to this clinician.

See all payments to William Gianni

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Sources for William R. Gianni's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about William R. Gianni

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is William R. Gianni's NPI number?

William R. Gianni's NPI number is 1093823080. It was assigned on August 29, 2006, and it is active in the NPI Registry.

What does William R. Gianni specialize in?

William R. Gianni is a dentist in Concord, California. The primary specialty in the NPI Registry is Dentist (taxonomy code 122300000X).

Where does William R. Gianni practice?

William Gianni practices at 2999 Regent St, Berkeley, CA 94705-2146. William Gianni also practices at 2975 Treat Blvd Bldg D, Concord, CA 94518. William Gianni's primary practice is Williamtennantdds/williamgiannidds in Berkeley, California. Dmand AI also links William Gianni to 1 medical group.

What is William R. Gianni's office phone number?

The practice phone on file for William Gianni is (510) 848-3143.

What is William R. Gianni's medical license number?

William Gianni holds California license 43695.

Has William R. Gianni received payments from drug or device companies?

CMS Open Payments shows $44 in general payments to William Gianni from 1 company from 2025 to 2025. The largest total came from Zimvie Inc.

How long has William R. Gianni been practicing?

William Gianni's NPI was assigned in 2006.

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