John F. Williams, DDS
- Part D claims, 2024
- 48
- Industry payments
- $46
- Affiliated sites
- 1
- Medical group
- 1
- State license
- 1
- Practice address
- 1325 Travis Blvd, Fairfield, CA 94533-4611
- Practice phone
- Call (707) 427-2222
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Chen & Su Dental Group
Dental practice · Fairfield, California
Find John Williams' professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
John F. Williams is a general practice dentistry in Fairfield, California
John Williams practices at Chen & Su Dental Group in Fairfield, California.
John Williams' NPI, 1104038348, was assigned on May 3, 2007. John Williams holds California license 30117.
- NPI
- 1104038348NPI Registry (opens in a new tab)
- NPI enumeration date
- May 3, 2007
- NPI status
- Active
- Practice phone
- (707) 427-2222
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
John F. Williams practices at Chen & Su Dental Group in Fairfield, California
John Williams' primary practice is Chen & Su Dental Group, at 1325 Travis Blvd, Fairfield, CA 94533-4611. The practice phone is (707) 427-2222.
- Chen & Su Dental Group1325 Travis Blvd, Fairfield, CA 94533-4611Phone(707) 427-2222
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
John F. Williams is affiliated with 1 site of care and 1 medical group
John Williams' primary practice is Chen & Su Dental Group in Fairfield, California. Dmand AI also links John Williams to 1 medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at John F. Williams' practice
Dmand AI tracks the electronic health record (EHR) system at each site where John Williams practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Chen & Su Dental Group | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.
John F. Williams is one of 7,627 general practice dentistrys in California
General practice is John Williams' primary specialty in the NPI Registry, under taxonomy code 1223G0001X. John Williams is licensed in California.
Specialties and state licenses
- General practice dentistry, CaliforniaPrimary
General practice dentistrys near John Williams
Counts of general practice dentistrys with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
John F. Williams wrote 48 Medicare Part D claims in 2024
In 2024, John Williams wrote 48 Medicare Part D claims for 30 patients. 94% of them were for generic drugs.
John Williams' Part D claims by kind of drug, 2024
- Generic45 claims94%
- Brand-name and other3 claims6%
Drug classes CMS tracks in John Williams' Part D claims, 2024
- Antibiotics85%41 of 48 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
John F. Williams received $46 in industry payments in 2025
CMS Open Payments shows 1 general payment to John Williams from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Kulzer, LLC paid the most, $46.
Companies that paid John Williams the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for John F. Williams's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about John F. Williams
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is John F. Williams' NPI number?
John F. Williams' NPI number is 1104038348. It was assigned on May 3, 2007, and it is active in the NPI Registry.
What does John F. Williams specialize in?
John F. Williams is a general practice dentistry in Fairfield, California. The primary specialty in the NPI Registry is General Practice Dentistry (taxonomy code 1223G0001X).
Where does John F. Williams practice?
John Williams practices at 1325 Travis Blvd, Fairfield, CA 94533-4611. John Williams' primary practice is Chen & Su Dental Group in Fairfield, California. Dmand AI also links John Williams to 1 medical group.
What is John F. Williams' office phone number?
The practice phone on file for John Williams is (707) 427-2222.
What is John F. Williams' medical license number?
John Williams holds California license 30117.
Has John F. Williams received payments from drug or device companies?
CMS Open Payments shows $46 in general payments to John Williams from 1 company from 2025 to 2025. The largest total came from Kulzer, LLC.
How long has John F. Williams been practicing?
John Williams' NPI was assigned in 2007.
Selling to general practice practices?
See general practice dentistrys in California by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card