John C. Hazen, DDS
General Practice Dentistry · Madison, WI
John C. Hazen, DDS is a general practice dentistry with a practice address in Madison, Wisconsin, and NPI 1699874750, issued on Sep 22, 2006. Check the license (Wisconsin 4304, as entered in NPPES) with the Wisconsin board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- John C. Hazen
- Credential
- DDS
- Primary taxonomy
- General Practice Dentistry 1223G0001X
- License number
- 4304 WI
Self-reported in NPPES; status is on the state search - Practice location
- 413 W Washington Ave, Madison, WI 53703
- Phone
- (608) 251-8790
- Enumerated
- Sep 22, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (608) 251-0242
- Entity
- Type 1 · individual
Also registered at 413 W Washington Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jennifer Bergstrom, DDSGeneral Practice Dentistry1003915174
- Andrew Brodek, DMDGeneral Practice Dentistry1932695913
- Sarah Karls, D.D.S.General Practice Dentistry1841581915
Verify John C. Hazen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Wisconsin board licenses this profession
Search for license 4304Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4% fewer Medicare Part D claims than the average general practice dentistry in 2024
80 Medicare Part D claims for 51 beneficiaries, against an average of 83 among the 70,290 providers of this specialty who prescribed in Part D. 12 claims were for opioids.
Most prescribed
- Amoxicillin35 claims
- Acetaminophen-Codeine11 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $318.71
7 payments; by number, the most common kind was food and beverage; the largest payer was Dentsply Sirona Inc. The 41,669 providers of this specialty with any payment received $597.01 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
General Practice Dentistry providers in Wisconsin
There are 2,305 general practice dentistry records in Wisconsin.
Other general practice dentistry records in Wisconsin
- Komail Abbas, D.M.D.Kenosha, WI1114206109
- Dennis Abere, DDSWaukesha, WI1962585281
- Caleb Abfall, DDSGreen Bay, WI1336851765
- Margaret Aboagye, DDSRacine, WI1629150289
- Jennifer Abraham, D.D.S.Thiensville, WI1295944619
- Reena Abraham, DMDMarshfield, WI1457589491
- Theresa Adamczyk, DDSOshkosh, WI1962882308
- Frances Adjepon-YamoahMadison, WI1689281081
- Mohamed Adl, DDSWest Allis, WI1083640460
- Dennis Adler, DDSMount Horeb, WI1083787626
Common questions
What is John C. Hazen, DDS's NPI number?
John C. Hazen, DDS's National Provider Identifier (NPI) is 1699874750, issued on Sep 22, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John C. Hazen, DDS located?
The NPPES record lists a practice address at 413 W Washington Ave, Madison, WI, 53703. Phone: (608) 251-8790. Providers update this record themselves, so call before visiting.
How can I verify John C. Hazen, DDS's license?
NPPES lists Wisconsin license number 4304, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity only.
How much does John C. Hazen, DDS prescribe under Medicare Part D?
In 2024, John C. Hazen, DDS had 80 Medicare Part D claims for 51 beneficiaries; the average among general practice dentistry prescribers was 83. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.