James Edward Hamman, DDS
General Practice Dentistry · Oshkosh, WI
James Edward Hamman, DDS is a general practice dentistry with a practice address in Oshkosh, Wisconsin, and NPI 1821118977, issued on Mar 30, 2007. Check the license (Wisconsin WI4701, as entered in NPPES) with the Wisconsin board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- James Edward Hamman
- Credential
- DDS
- Primary taxonomy
- General Practice Dentistry 1223G0001X
- License number
- WI4701 WI
Self-reported in NPPES; status is on the state search - Practice location
- 1486 W South Park Ave, Oshkosh, WI 54902
- Phone
- (920) 303-1803
- Enumerated
- Mar 30, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (920) 303-1803
- Entity
- Type 1 · individual
Verify James Edward Hamman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Wisconsin board licenses this profession
Search for license WI4701Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
25% more Medicare Part D claims than the average general practice dentistry in 2024
104 Medicare Part D claims for 73 beneficiaries, against an average of 83 among the 70,290 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Penicillin V Potassium38 claims
- Amoxicillin22 claims
- Nystatin12 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.
38 general practice dentistry records list a practice address in Oshkosh
They are 38 of the 1,527 NPPES records with a practice address in Oshkosh, and 2,305 general practice dentistry records in Wisconsin.
All 38 in Oshkosh → All 2,305 in Wisconsin → Every provider in Oshkosh →
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 James Edward Hamman, DDS's NPI number?
James Edward Hamman, DDS's National Provider Identifier (NPI) is 1821118977, issued on Mar 30, 2007. An NPI identifies a provider in billing; it is not a license.
Where is James Edward Hamman, DDS located?
The NPPES record lists a practice address at 1486 W South Park Ave, Oshkosh, WI, 54902. Phone: (920) 303-1803. Providers update this record themselves, so call before visiting.
How can I verify James Edward Hamman, DDS's license?
NPPES lists Wisconsin license number WI4701, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity only.
How much does James Edward Hamman, DDS prescribe under Medicare Part D?
In 2024, James Edward Hamman, DDS had 104 Medicare Part D claims for 73 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.