Gregory S. Duncan, D.P.M
Foot Surgery Podiatrist · Davenport, IA
Gregory S. Duncan, D.P.M is a foot surgery podiatrist with a practice address in Davenport, Iowa, and NPI 1902804065, issued on Jul 12, 2005. Check the license (Iowa 429, as entered in NPPES) with the Iowa board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Gregory S. Duncan
- Credential
- D.P.M
- Primary taxonomy
- Foot Surgery Podiatrist 213ES0131X
- License number
- 429 IA
Self-reported in NPPES; status is on the state search - Practice location
- 3526 Jersey Ridge RD, Davenport, IA 52807
- Phone
- (563) 355-3233
- Enumerated
- Jul 12, 2005
- Record last updated
- Jan 24, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (563) 355-8990
- Medicare enrollment
- Enrolled (PECOS I20050105000419); accepts Medicare assignment
- Medical or professional school
- California School Of Podiatric Medicine, 1985
- Entity
- Type 1 · individual
3 nearest foot surgery podiatrist records → All 4 in Iowa → Look up another NPI →
Verify Gregory S. Duncan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Iowa board licenses this profession
Search for license 429Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
69% fewer Medicare Part D claims than the average foot surgery podiatrist in 2024
110 Medicare Part D claims for 78 beneficiaries, against an average of 358 among the 1,032 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Cephalexin32 claims
- Ciclopirox22 claims
- Meloxicam16 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: $426.00
10 payments; by number, the most common kind was food and beverage; the largest payer was Treace Medical Concepts, Inc. The 731 providers of this specialty with any payment received $1,811.30 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.
Foot Surgery Podiatrist providers in Iowa
There are 4 foot surgery podiatrist records in Iowa.
All 4 in Iowa → Every provider in Davenport → Foot Surgery Podiatrist nationwide →
The 3 foot surgery podiatrist records with the nearest ZIP codes
- Brian Dvorak, D.P.M.Hiawatha, IA 522331912972688
- Patrick Barnes, DPMCouncil Bluffs, IA 515031972595916
- David Yount, D.P.M.Des Moines, IA 503171003801408
Common questions
What is Gregory S. Duncan, D.P.M's NPI number?
Gregory S. Duncan, D.P.M's National Provider Identifier (NPI) is 1902804065, issued on Jul 12, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Gregory S. Duncan, D.P.M located?
The NPPES record lists a practice address at 3526 Jersey Ridge RD, Davenport, IA, 52807. Phone: (563) 355-3233. Providers update this record themselves, so call before visiting.
How can I verify Gregory S. Duncan, D.P.M's license?
NPPES lists Iowa license number 429, as entered by the provider. Search the Iowa board that licenses this profession; the NPPES record confirms identity only.
How much does Gregory S. Duncan, D.P.M prescribe under Medicare Part D?
In 2024, Gregory S. Duncan, D.P.M had 110 Medicare Part D claims for 78 beneficiaries; the average among foot surgery podiatrist prescribers was 358. 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.