William Hardenbergh, DMD
- Part D claims, 2024
- 18
- Industry payments
- $63
- Affiliated sites
- 3
- Medical group
- 1
- State license
- 1
- Practice address
- 1622 E Algonquin Rd, Schaumburg, IL 60173-4191
- Practice phone
- Call (847) 397-7161
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Harry J. Kiriluk
Dental practice · Schaumburg, Illinois
Find William Hardenbergh'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 Hardenbergh is a general practice dentistry in Schaumburg, Illinois
William Hardenbergh practices at Harry J. Kiriluk in Schaumburg, Illinois.
William Hardenbergh's NPI, 1487178059, was assigned on July 26, 2017. William Hardenbergh holds Illinois license 019032159.
- NPI
- 1487178059NPI Registry (opens in a new tab)
- NPI enumeration date
- July 26, 2017
- NPI status
- Active
- Practice phone
- (847) 397-7161
- 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 Hardenbergh practices at Harry J. Kiriluk in Schaumburg, Illinois
William Hardenbergh's primary practice is Harry J. Kiriluk, at 1622 E Algonquin Rd, Schaumburg, IL 60173-4191. The practice phone is (847) 397-7161.
- Harry J. Kiriluk1622 E Algonquin Rd, Schaumburg, IL 60173-4191Phone(847) 397-7161
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
William Hardenbergh is affiliated with 3 sites of care and 1 medical group
William Hardenbergh's primary practice is Harry J. Kiriluk in Schaumburg, Illinois. Dmand AI also links William Hardenbergh to 2 physician offices and 1 medical group, each 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 Hardenbergh's practice
Dmand AI tracks the electronic health record (EHR) system at each site where William Hardenbergh practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Harry J. Kiriluk | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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William Hardenbergh is one of 2,353 general practice dentistrys in Illinois
General practice is William Hardenbergh's primary specialty in the NPI Registry, under taxonomy code 1223G0001X. William Hardenbergh is licensed in Illinois.
Specialties and state licenses
- General practice dentistry, IllinoisPrimary
General practice dentistrys near William Hardenbergh
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 Hardenbergh's patients have a median age of 68
Across all payers, Dmand AI patient panel data puts William Hardenbergh's median patient age at 68, with 0% women.
William Hardenbergh's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women0%
- Men100%
Source: Dmand AI Patient Panel Data
William Hardenbergh wrote 18 Medicare Part D claims in 2024
In 2024, William Hardenbergh wrote 18 Medicare Part D claims for 15 patients. 100% of them were for generic drugs.
Drug classes CMS tracks in William Hardenbergh's Part D claims, 2024
- Antibiotics94%17 of 18 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 Hardenbergh received $63 in industry payments in 2025
CMS Open Payments shows 1 general payment to William Hardenbergh 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, $63.
Companies that paid William Hardenbergh 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 Hardenbergh'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 Hardenbergh
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 Hardenbergh's NPI number?
William Hardenbergh's NPI number is 1487178059. It was assigned on July 26, 2017, and it is active in the NPI Registry.
What does William Hardenbergh specialize in?
William Hardenbergh is a general practice dentistry in Schaumburg, Illinois. The primary specialty in the NPI Registry is General Practice Dentistry (taxonomy code 1223G0001X).
Where does William Hardenbergh practice?
William Hardenbergh practices at 1622 E Algonquin Rd, Schaumburg, IL 60173-4191. William Hardenbergh's primary practice is Harry J. Kiriluk in Schaumburg, Illinois. Dmand AI also links William Hardenbergh to 2 physician offices and 1 medical group.
What is William Hardenbergh's office phone number?
The practice phone on file for William Hardenbergh is (847) 397-7161.
What is William Hardenbergh's medical license number?
William Hardenbergh holds Illinois license 019032159.
Has William Hardenbergh received payments from drug or device companies?
CMS Open Payments shows $63 in general payments to William Hardenbergh from 1 company from 2025 to 2025. The largest total came from Zimvie Inc.
How long has William Hardenbergh been practicing?
William Hardenbergh's NPI was assigned in 2017.
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