Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

William D Matthews, MD

Individual provider Diagnostic Radiology Physician · NPI 1114973377

William D Matthews, MD practises Diagnostic Radiology in Mason City, Iowa. Graduated from University of South Florida College of Medicine in 1991, 35 years ago. Practices with Iowa Specialty Hospital- Clarion, a 93-clinician group, works from 9 locations and accepts Medicare assignment. Licensed in Iowa.

Years since qualifying
35
Trained at
University of South Florida College of Medicine
Licensed in
IA
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

1010 4th St SW Ste 100
Mason City, IA 50401-2857
Phone: (641) 424-0102
Fax: (641) 424-8059
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (8)

  • 403 1st St Se, Belmond, IA 50421-1201 — (844) 474-4321
  • 104 S Story St, Boone, IA 50036-4737 — (844) 474-4321
  • 1316 S Main St, Clarion, IA 50525-2019 — (844) 474-4321
  • 401 S 17th St, Clear Lake, IA 50428-2304 — (844) 474-4321
  • 2700 1st Ave S, Fort Dodge, IA 50501-4300 — (844) 474-4321
  • 840 W Us Highway 18, Garner, IA 50438-1023 — (641) 444-3223
  • 520 S Pierce Ave, Mason City, IA 50401-2749 — (641) 428-9200
  • 1924 Superior St, Webster City, IA 50595-3146 — (844) 474-4321

Specialties & licences

Diagnostic Radiology Physician (primary) Taxonomy 2085R0202X · Licence 33563 (IA)

Record details

NPI number1114973377
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 26, 2006
Last updated in NPPESSeptember 14, 2026
Certification dateSeptember 14, 2026

Medicare enrollment

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

Medicare specialtyDIAGNOSTIC RADIOLOGY
Medical schoolUNIVERSITY OF SOUTH FLORIDA COLLEGE OF MEDICINE
Graduated 1991 (35 years in practice)
Group practice Iowa Specialty Hospital- Clarion — 93 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients2,311
Services billed 3,176 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Iowa Specialty Hospital- Clarion

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 93 clinicians in the practice; 12 are shown here.

Other providers in Mason City