William Napier, M.D.
Family Medicine Physician · Fort Madison, IA
William Napier, M.D. is a family medicine physician with a practice address in Fort Madison, Iowa, and NPI 1730181397, issued on Aug 12, 2005. Check the license (Iowa 34601, as entered in NPPES) on the Iowa Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- William Napier
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 34601 IA
Self-reported in NPPES; status is on the state search - Practice location
- 5409 Avenue O, Fort Madison, IA 52627
- Phone
- (319) 376-2134
- Enumerated
- Aug 12, 2005
- Record last updated
- Jan 18, 2024
- Fax
- (319) 376-2188
- Medicaid ID
- 0261594 IA
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 2,336 in Iowa → Look up another NPI →
Also registered at 5409 Avenue O
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Kolleen BurnettPediatrics Physician1326131665
- Mark Calkins, MDOrthopaedic Surgery Physician1770516353
Verify William Napier in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIowa Board of Medicine
Search for license 34601Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
93% fewer Medicare Part D claims than the average family medicine physician in 2024
233 Medicare Part D claims for 126 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 14 claims were for opioids.
Most prescribed
- Dexamethasone27 claims
- Azithromycin19 claims
- Metoprolol Succinate15 claims
- Losartan Potassium11 claims
- Nitrofurantoin Mono-Macro11 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 75.3 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
William Napier among 2,336 family medicine physician records in Iowa
William Napier, M.D. is one of 2,336 family medicine physician records with a practice address in Iowa. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 84% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 59% of these records are
- Record last updated2024 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
9 family medicine physician records list a practice address in Fort Madison
They are 9 of the 118 NPPES records with a practice address in Fort Madison, and 2,336 family medicine physician records in Iowa.
All 2,336 in Iowa → Every provider in Fort Madison → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Ruth Barosy, M.D.Fort Madison, IA 526271518349539
- Christina Goebel, MDFort Madison, IA 526271760469589
- Robert Goodwill, M.D.Fort Madison, IA 526271346231842
- Tatenda Goronga, MDFort Madison, IA 526271598143307
- James Kannenberg, M.D.Fort Madison, IA 526271265434864
- Chase Newton, D.O.Fort Madison, IA 526271205062239
- Andrew Root, DOFort Madison, IA 526271851034540
- David Wenger-Keller, MDFort Madison, IA 526271538157383
Common questions
What is William Napier, M.D.'s NPI number?
William Napier, M.D.'s National Provider Identifier (NPI) is 1730181397, issued on Aug 12, 2005. An NPI identifies a provider in billing; it is not a license.
Where is William Napier, M.D. located?
The NPPES record lists a practice address at 5409 Avenue O, Fort Madison, IA, 52627. Phone: (319) 376-2134. Providers update this record themselves, so call before visiting.
How can I verify William Napier, M.D.'s license?
NPPES lists Iowa license number 34601, as entered by the provider. Search the Iowa Board of Medicine at https://dial.iowa.gov/about-dial/boards-and-commissions/medicine. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does William Napier, M.D. prescribe under Medicare Part D?
In 2024, William Napier, M.D. had 233 Medicare Part D claims for 126 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is William Napier, M.D.'s MIPS final score?
The 2023 MIPS final score is 75.3 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.