William Henry Fenn, DMD
- Part D claims, 2024
- 37
- Hospital affiliations
- 1
- Medical group
- 1
- State licenses
- 2
- Year NPI issued
- 2017
- Practice address
- 123 Summer Street, Worcester, MA 01608
- Practice phone
- Call (508) 363-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find William Fenn'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.
William Henry Fenn is a dentist in Worcester, Massachusetts
William Fenn practices at Saint Vincent Hospital in Worcester, Massachusetts, part of Tenet Healthcare.
William Fenn's NPI, 1568980118, was assigned on September 5, 2017. William Fenn holds Maine license DEN5000.
- NPI
- 1568980118NPI Registry (opens in a new tab)
- NPI enumeration date
- September 5, 2017
- NPI status
- Active
- Practice phone
- (508) 363-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
William Henry Fenn practices at Saint Vincent Hospital in Worcester, Massachusetts
William Fenn's primary practice is Saint Vincent Hospital, at 123 Summer Street, Worcester, MA 01608 in Worcester County. The practice phone is (508) 363-5000.
- Saint Vincent Hospital123 Summer Street, Worcester, MA 01608 · Worcester CountyPhone(508) 363-5000
Source: Dmand AI Affiliation Data
William Henry Fenn is affiliated with 3 sites of care and 1 medical group
William Fenn's primary practice is Saint Vincent Hospital in Worcester, Massachusetts, part of Tenet Healthcare. Dmand AI also links William Fenn to 1 group practice or clinic, 1 hospital outpatient department and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at William Henry Fenn's practice
Dmand AI tracks the electronic health record (EHR) system at each site where William Fenn practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Saint Vincent Hospital | Available with a free account |
| +2 more sites and 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 Tenet Healthcare and 6.2K+ hospitals, with verified contacts in the same login.
William Henry Fenn is one of 1,210 dentists in Massachusetts
Dentist is William Fenn's primary specialty in the NPI Registry, under taxonomy code 122300000X. Dmand AI has William Fenn's licenses on file in 2 states: Maine and New Hampshire.
Specialties and state licenses
- Dentist, MainePrimary
- General practice dentistry, New Hampshire
Dentists near William Fenn
Counts of dentists 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
William Henry Fenn's patients have a median age of 53
Across all payers, Dmand AI patient panel data puts William Fenn's median patient age at 53, with 25% women.
William Fenn's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 53
Patient panel by sex, all payers
- Women25%
- Men75%
Source: Dmand AI Patient Panel Data
William Henry Fenn wrote 37 Medicare Part D claims in 2024
In 2024, William Fenn wrote 37 Medicare Part D claims for 31 patients. 76% of them were for generic drugs.
William Fenn's Part D claims by kind of drug, 2024
- Generic28 claims76%
- Brand-name and other9 claims24%
Drug classes CMS tracks in William Fenn's Part D claims, 2024
- Antibiotics70%26 of 37 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.
Sources for William Henry Fenn'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 Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| 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) |
| 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 William Henry Fenn
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 Henry Fenn's NPI number?
William Henry Fenn's NPI number is 1568980118. It was assigned on September 5, 2017, and it is active in the NPI Registry.
What does William Henry Fenn specialize in?
William Henry Fenn is a dentist in Worcester, Massachusetts. The primary specialty in the NPI Registry is Dentist (taxonomy code 122300000X).
Where does William Henry Fenn practice?
William Fenn practices at 123 Summer Street, Worcester, MA 01608. William Fenn's primary practice is Saint Vincent Hospital in Worcester, Massachusetts, part of Tenet Healthcare. Dmand AI also links William Fenn to 1 group practice or clinic, 1 hospital outpatient department and 1 medical group.
What is William Henry Fenn's office phone number?
The practice phone on file for William Fenn is (508) 363-5000.
What is William Henry Fenn's medical license number?
William Fenn holds Maine license DEN5000, one of the licenses on file in 2 states.
Which states has William Henry Fenn been licensed in?
Dmand AI has state licenses on file for William Fenn in Maine and New Hampshire.
Which hospitals is William Henry Fenn affiliated with?
William Fenn practices at Saint Vincent Hospital in Worcester, Massachusetts.
How long has William Henry Fenn been practicing?
William Fenn's NPI was assigned in 2017.
Selling to dentist practices?
See dentists in Massachusetts 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