William Giswold, DDS
General Practice Dentistry · Madison, WI
William Giswold, DDS is a general practice dentistry with a practice address in Madison, Wisconsin, and NPI 1891961579, issued on May 2, 2008. Check the license (Wisconsin 5000416-15, as entered in NPPES) with the Wisconsin board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- William Giswold
- Credential
- DDS
- Primary taxonomy
- General Practice Dentistry 1223G0001X
- License number
- 5000416-15 WI
Self-reported in NPPES; status is on the state search - Practice location
- 3434 E Washington Ave, Madison, WI 53704
- Phone
- (608) 443-5482
- Enumerated
- May 2, 2008
- Record last updated
- May 2, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (608) 443-5535
- Medicaid ID
- 33649600 WI
- Entity
- Type 1 · individual
Also registered at 3434 E Washington Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Afi AssignonDental Hygienist1053832915
- Elizabeth Begy, DDSDentist1619712031
- Alicia Bush, DMDDentist1447770151
- Tiffany CalvertDental Hygienist1215103999
- Julia Clemens, MDPediatrics Physician1376284653
- Kelly Clements, PSYDPsychologist1770986069
Verify William Giswold in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Wisconsin board licenses this profession
Search for license 5000416-15Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
General Practice Dentistry providers in Wisconsin
There are 2,305 general practice dentistry records in Wisconsin. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
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 William Giswold, DDS's NPI number?
William Giswold, DDS's National Provider Identifier (NPI) is 1891961579, issued on May 2, 2008. An NPI identifies a provider in billing; it is not a license.
Where is William Giswold, DDS located?
The NPPES record lists a practice address at 3434 E Washington Ave, Madison, WI, 53704. Phone: (608) 443-5482. Providers update this record themselves, so call before visiting.
How can I verify William Giswold, DDS's license?
NPPES lists Wisconsin license number 5000416-15, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity 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. 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.