William Joseph Brosnahan, M.D.
Anesthesiology Physician · West Des Moines, IA
William Joseph Brosnahan, M.D. is an anesthesiology physician with a practice address in West Des Moines, Iowa, and NPI 1104803873, issued on Dec 23, 2005. Check the license (Iowa 28850, as entered in NPPES) on the Iowa Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- William Joseph Brosnahan
- Credential
- M.D.
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License number
- 28850 IA
Self-reported in NPPES; status is on the state search - Practice location
- 4200 University Ave, West Des Moines, IA 50266
- Phone
- (515) 401-1950
- Enumerated
- Dec 23, 2005
- Record last updated
- May 19, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (515) 401-1955
- Medicaid ID
- 0122655 IA
- Medicare enrollment
- Enrolled (PECOS I20100724000312); accepts Medicare assignment
- Medical or professional school
- University Of Iowa, Rj & L Carver College Of Medicine, 1991
- Entity
- Type 1 · individual
8 nearest anesthesiology physician records → All 569 in Iowa → Look up another NPI →
Also registered at 4200 University Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- William Davis, M.D.Anesthesiology Physician1063498566
- John Jabour, M.D.Anesthesiology Physician1699751578
- Jamie Johnson, M.D.Anesthesiology Physician1447460555
- Zachariah Pederson, D.O.Anesthesiology Physician1447490594
Verify William Joseph Brosnahan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIowa Board of Medicine
Search for license 28850Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $24.26
1 payment: food and beverage; the largest payer was Merck Sharp & Dohme LLC. The 17,774 providers of this specialty with any payment received $669.59 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.
Bills Medicare through one group practice
- Associated Anesthesiologists PCDes Moines, IA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William Joseph Brosnahan among 569 anesthesiology physician records in Iowa
William Joseph Brosnahan, M.D. is one of 569 anesthesiology physician records with a practice address in Iowa. 70% 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, 79% newer
- In a Medicare fileYes · 70% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1991 · median 2006 among the 361 with a school on file
- Record last updated2020 · 40% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Anesthesiology Physician providers in Iowa
There are 569 anesthesiology physician records in Iowa.
All 569 in Iowa → Every provider in West Des Moines → Anesthesiology Physician nationwide →
The 8 anesthesiology physician records with the nearest ZIP codes
- Jeffrey Anderson, MDWest Des Moines, IA 502661134105158
- Daniel Baldi, D.O.West Des Moines, IA 502661215934914
- William Davis, M.D.West Des Moines, IA 502661063498566
- Samuel Greer, D.O.West Des Moines, IA 502661306822333
- John Jabour, M.D.West Des Moines, IA 502661699751578
- Bruce James, M.D.West Des Moines, IA 502661255317418
- Jamie Johnson, M.D.West Des Moines, IA 502661447460555
- Mark Kellen, MDWest Des Moines, IA 502661023178647
Common questions
What is William Joseph Brosnahan, M.D.'s NPI number?
William Joseph Brosnahan, M.D.'s National Provider Identifier (NPI) is 1104803873, issued on Dec 23, 2005. An NPI identifies a provider in billing; it is not a license.
Where is William Joseph Brosnahan, M.D. located?
The NPPES record lists a practice address at 4200 University Ave, West Des Moines, IA, 50266. Phone: (515) 401-1950. Providers update this record themselves, so call before visiting.
How can I verify William Joseph Brosnahan, M.D.'s license?
NPPES lists Iowa license number 28850, 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.
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.