William Kessler, DMD
- Part D claims, 2024
- 127
- Industry payments
- $300
- Affiliated sites
- 1
- Medical group
- 1
- State license
- 1
- Practice address
- 4130 Bloomfield Ave, Drexel Hill, PA 19026-3803
- Practice phone
- Call (610) 284-4770
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Sonia Barbosa-ruiz
Dental practice · Drexel Hill, Pennsylvania
Find William Kessler'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 Kessler is a general practice dentistry in Drexel Hill, Pennsylvania
William Kessler practices at Sonia Barbosa-ruiz in Drexel Hill, Pennsylvania.
William Kessler's NPI, 1710502018, was assigned on June 11, 2020. William Kessler holds Pennsylvania license DS043044.
- NPI
- 1710502018NPI Registry (opens in a new tab)
- NPI enumeration date
- June 11, 2020
- NPI status
- Active
- Practice phone
- (610) 284-4770
- 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)
William Kessler practices at Sonia Barbosa-ruiz in Drexel Hill, Pennsylvania
William Kessler's primary practice is Sonia Barbosa-ruiz, at 4130 Bloomfield Ave, Drexel Hill, PA 19026-3803. The practice phone is (610) 284-4770.
- Sonia Barbosa-ruiz4130 Bloomfield Ave, Drexel Hill, PA 19026-3803Phone(610) 284-4770
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
William Kessler is affiliated with 1 site of care and 1 medical group
William Kessler's primary practice is Sonia Barbosa-ruiz in Drexel Hill, Pennsylvania. Dmand AI also links William Kessler 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 William Kessler's practice
Dmand AI tracks the electronic health record (EHR) system at each site where William Kessler practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Sonia Barbosa-ruiz | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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William Kessler is one of 1,895 general practice dentistrys in Pennsylvania
General practice is William Kessler's primary specialty in the NPI Registry, under taxonomy code 1223G0001X. William Kessler is licensed in Pennsylvania.
Specialties and state licenses
- General practice dentistry, PennsylvaniaPrimary
General practice dentistrys near William Kessler
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
William Kessler's patients have a median age of 46
Across all payers, Dmand AI patient panel data puts William Kessler's median patient age at 46, with 0% women.
William Kessler's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 46
Patient panel by sex, all payers
- Women0%
- Men100%
Source: Dmand AI Patient Panel Data
William Kessler wrote 127 Medicare Part D claims in 2024
In 2024, William Kessler wrote 127 Medicare Part D claims for 55 patients. 100% of them were for generic drugs.
Drug classes CMS tracks in William Kessler's Part D claims, 2024
- Antibiotics46%58 of 127 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
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William Kessler received $300 in industry payments in 2025
CMS Open Payments shows 1 general payment to William Kessler from 1 drug or device company in 2025. Consulting fees make up the largest share, 100% of the total. Align Technology, Inc. paid the most, $300.
Companies that paid William Kessler 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 William Kessler'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) |
| 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 William Kessler
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 Kessler's NPI number?
William Kessler's NPI number is 1710502018. It was assigned on June 11, 2020, and it is active in the NPI Registry.
What does William Kessler specialize in?
William Kessler is a general practice dentistry in Drexel Hill, Pennsylvania. The primary specialty in the NPI Registry is General Practice Dentistry (taxonomy code 1223G0001X).
Where does William Kessler practice?
William Kessler practices at 4130 Bloomfield Ave, Drexel Hill, PA 19026-3803. William Kessler's primary practice is Sonia Barbosa-ruiz in Drexel Hill, Pennsylvania. Dmand AI also links William Kessler to 1 medical group.
What is William Kessler's office phone number?
The practice phone on file for William Kessler is (610) 284-4770.
What is William Kessler's medical license number?
William Kessler holds Pennsylvania license DS043044.
Has William Kessler received payments from drug or device companies?
CMS Open Payments shows $300 in general payments to William Kessler from 1 company from 2025 to 2025. The largest total came from Align Technology, Inc.
How long has William Kessler been practicing?
William Kessler's NPI was assigned in 2020.
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