Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

William Joseph Brosnahan, MD

Individual provider Anesthesiology Physician · NPI 1104803873

William Joseph Brosnahan, MD is an Anesthesiology in West Des Moines, Iowa. Graduated from University of Iowa, Rj & L Carver College of Medicine in 1991, 35 years ago. Practices with Associated Anesthesiologists PC, a 65-clinician group and accepts Medicare assignment. Licensed in Iowa.

Years since qualifying
35
Trained at
University of Iowa, Rj & L Carver College of Medicine
Licensed in
IA
In the registry since
2005
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

4200 University Ave Ste 300
West Des Moines, IA 50266-5945
Phone: (515) 401-1950
Fax: (515) 401-1955
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence 28850 (IA)

Record details

NPI number1104803873
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedDecember 23, 2005
Last updated in NPPESMay 19, 2020
Certification dateMay 19, 2020

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyANESTHESIOLOGY
Medical schoolUNIVERSITY OF IOWA, RJ & L CARVER COLLEGE OF MEDICINE
Graduated 1991 (35 years in practice)
Group practice Associated Anesthesiologists Pc — 65 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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