John Christopher Fat, DDS, MS
- Part D claims, 2024
- 32
- Industry payments
- $149
- Affiliated sites
- 1
- Medical group
- 1
- State license
- 1
- Practice address
- 7210 S Land Park Dr, Sacramento, CA 95831-3663
- Practice phone
- Call (916) 427-2555
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Dr Timothy A Wong And Dr John C Fat
Dental practice · Sacramento, California
Find John Fat's 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 Christopher Fat is an endodontist in Indianapolis, Indiana
John Fat practices at Dr Timothy A Wong And Dr John C Fat in Sacramento, California.
John Fat's NPI, 1619098480, was assigned on April 2, 2007. John Fat holds California license 153371.
- NPI
- 1619098480NPI Registry (opens in a new tab)
- NPI enumeration date
- April 2, 2007
- NPI status
- Active
- Practice phone
- (916) 427-2555
- 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 Christopher Fat practices in Sacramento and Indianapolis
John Fat's primary practice is Dr Timothy A Wong and Dr John C Fat, at 7210 S Land Park Dr, Sacramento, CA 95831-3663. The practice phone is (916) 427-2555. The NPI Registry lists John Fat's practice address as 7353 Company Dr, Indianapolis, IN 46237.
- Dr Timothy A Wong and Dr John C FatPrimary7210 S Land Park Dr, Sacramento, CA 95831-3663Phone(916) 427-2555
- NPI Registry address7353 Company Dr, Indianapolis, IN 46237 · Marion County
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
John Christopher Fat is affiliated with 1 site of care and 1 medical group
John Fat's primary practice is Dr Timothy A Wong And Dr John C Fat in Sacramento, California. Dmand AI also links John Fat 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 Christopher Fat's practice
Dmand AI tracks the electronic health record (EHR) system at each site where John Fat practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dr Timothy A Wong And Dr John C Fat | 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 Christopher Fat is one of 51 endodontists in Indiana
Endodontics is John Fat's primary specialty in the NPI Registry, under taxonomy code 1223E0200X. John Fat is licensed in California.
Specialties and state licenses
- Endodontist, CaliforniaPrimary
Endodontists near John Fat
Counts of endodontists 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 Christopher Fat's patients have a median age of 67
Across all payers, Dmand AI patient panel data puts John Fat's median patient age at 67, with 100% women.
John Fat's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 67
Patient panel by sex, all payers
- Women100%
- Men0%
Source: Dmand AI Patient Panel Data
John Christopher Fat wrote 32 Medicare Part D claims in 2024
In 2024, John Fat wrote 32 Medicare Part D claims for 29 patients. 88% of them were for generic drugs.
John Fat's Part D claims by kind of drug, 2024
- Generic28 claims88%
- Brand-name and other4 claims13%
Drug classes CMS tracks in John Fat's Part D claims, 2024
- Antibiotics81%26 of 32 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 Christopher Fat received $149 in industry payments in 2025
CMS Open Payments shows 6 general payments to John Fat from 2 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Sonendo Inc paid the most, $136.
Companies that paid John Fat 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 Christopher Fat'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 | NPPES 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 system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| 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 Christopher Fat
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 Christopher Fat's NPI number?
John Christopher Fat's NPI number is 1619098480. It was assigned on April 2, 2007, and it is active in the NPI Registry.
What does John Christopher Fat specialize in?
John Christopher Fat is an endodontist in Indianapolis, Indiana. The primary specialty in the NPI Registry is Endodontist (taxonomy code 1223E0200X).
Where does John Christopher Fat practice?
John Fat practices at 7210 S Land Park Dr, Sacramento, CA 95831-3663. John Fat also practices at 7353 Company Dr, Indianapolis, IN 46237. John Fat's primary practice is Dr Timothy A Wong And Dr John C Fat in Sacramento, California. Dmand AI also links John Fat to 1 medical group.
What is John Christopher Fat's office phone number?
The practice phone on file for John Fat is (916) 427-2555.
What is John Christopher Fat's medical license number?
John Fat holds California license 153371.
Has John Christopher Fat received payments from drug or device companies?
CMS Open Payments shows $149 in general payments to John Fat from 2 companies from 2025 to 2025. The largest total came from Sonendo Inc.
How long has John Christopher Fat been practicing?
John Fat's NPI was assigned in 2007.
Selling to endodontics practices?
See endodontists in Indiana 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