Gwen Genette Bigelow Oswald, DDS
General Practice Dentistry · Winterset, IA
Gwen Genette Bigelow Oswald, DDS is a general practice dentistry with a practice address in Winterset, Iowa, and NPI 1205951654, issued on Mar 21, 2007. Check the license (Iowa 08225, as entered in NPPES) with the Iowa board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Gwen Genette Bigelow Oswald
- Credential
- DDS
- Primary taxonomy
- General Practice Dentistry 1223G0001X
- License number
- 08225 IA
Self-reported in NPPES; status is on the state search - Practice location
- 124 West Summit St, Winterset, IA 50273
- Phone
- (515) 462-2212
- Enumerated
- Mar 21, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Medicaid ID
- 1418574 IA
- Entity
- Type 1 · individual
Verify Gwen Genette Bigelow Oswald in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Iowa board licenses this profession
Search for license 08225Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
46% fewer Medicare Part D claims than the average general practice dentistry in 2024
45 Medicare Part D claims for 32 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
- Amoxicillin27 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.
6 general practice dentistry records list a practice address in Winterset
They are 6 of the 77 NPPES records with a practice address in Winterset, and 1,239 general practice dentistry records in Iowa.
All 6 in Winterset → All 1,239 in Iowa → Every provider in Winterset →
Other general practice dentistry records in Iowa
- Deborah Adamec, D.D.S.Iowa City, IA1962624882
- Ken Addink, DDSSioux Center, IA1851372940
- Eric Adler, DDSSolon, IA1467025106
- Martin AhrensManning, IA1104030014
- Vinti Ahuja, DMDBettendorf, IA1992275358
- Jeffrey AkeyCedar Rapids, IA1598798886
- Ala'a Al Arabi, D.D.SWaterloo, IA1477969608
- Christopher Aldrich, DDSWaterloo, IA1073956454
- Ahmad Alkhazaleh, BDSIowa City, IA1528612827
- Jeffrey Allen, DDSPella, IA1841373289
Common questions
What is Gwen Genette Bigelow Oswald, DDS's NPI number?
Gwen Genette Bigelow Oswald, DDS's National Provider Identifier (NPI) is 1205951654, issued on Mar 21, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Gwen Genette Bigelow Oswald, DDS located?
The NPPES record lists a practice address at 124 West Summit St, Winterset, IA, 50273. Phone: (515) 462-2212. Providers update this record themselves, so call before visiting.
How can I verify Gwen Genette Bigelow Oswald, DDS's license?
NPPES lists Iowa license number 08225, as entered by the provider. Search the Iowa board that licenses this profession; the NPPES record confirms identity only.
How much does Gwen Genette Bigelow Oswald, DDS prescribe under Medicare Part D?
In 2024, Gwen Genette Bigelow Oswald, DDS had 45 Medicare Part D claims for 32 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.