NPPES file of Aug 9, 2026

Bryon Mason, DO

Hospitalist Physician · Des Moines, IA

Bryon Mason, DO is a hospitalist physician with a practice address in Des Moines, Iowa, and NPI 1124479472, issued on Jun 28, 2016. Check the license (Iowa DO-05158, as entered in NPPES) on the Iowa Board of Medicine; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1124479472
Name
Bryon Mason
Credential
DO
Primary taxonomy
Hospitalist Physician 208M00000X
License number
DO-05158 IA
Self-reported in NPPES; status is on the state search
Practice location
1200 Pleasant St Ste 400, Des Moines, IA 50309
Phone
(515) 241-4019
Enumerated
Jun 28, 2016
Record last updated
Dec 19, 2023
Medicare enrollment
Enrolled (PECOS I20180822002752); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1200 Pleasant St Ste 400

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Jessica Dedecker, DOInternal Medicine Physician1194107201
  2. Kirsten Johnson, MSN, ARNP, AGACNP-BCNurse Practitioner1336817899

Verify Bryon Mason in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIowa Board of Medicine
    Search for license DO-05158
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Iowa license search

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94% fewer Medicare Part D claims than the average hospitalist physician in 2024

31 Medicare Part D claims for 15 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D.

  1. Bryon Mason31
  2. Specialty average521

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.

2 hospitals and group practices

  1. Grinnell Regional Medical CenterGrinnell, IA · Acute Care Hospitals2 of 5 stars
  2. Iowa Physicians Clinic Medical FoundationDes Moines, IA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

84 hospitalist physician records list a practice address in Des Moines

They are 84 of the 5,538 NPPES records with a practice address in Des Moines, and 302 hospitalist physician records in Iowa.

Other hospitalist physician records in Iowa

  1. Mohamed Abd El MaksoudMason City, IA1033792825
  2. Ala Abdallah, MDIowa City, IA1588395701
  3. Ahmed AbdulrahmanSioux City, IA1972252856
  4. Abdul Abdussalam, MDCouncil Bluffs, IA1730773367
  5. Abiy Abebe, M.DDavenport, IA1154855104
  6. Anan Abu RmilahIowa City, IA1831822295
  7. Bashar Abuqayas, MDIowa City, IA1710474259
  8. Luna Acharya, MDMason City, IA1609224674
  9. Luis Acosta Nunez, MDDes Moines, IA1154018349
  10. Mehul Adhaduk, MDIowa City, IA1649534769

Common questions

What is Bryon Mason, DO's NPI number?

Bryon Mason, DO's National Provider Identifier (NPI) is 1124479472, issued on Jun 28, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Bryon Mason, DO located?

The NPPES record lists a practice address at 1200 Pleasant St Ste 400, Des Moines, IA, 50309. Phone: (515) 241-4019. Providers update this record themselves, so call before visiting.

How can I verify Bryon Mason, DO's license?

NPPES lists Iowa license number DO-05158, 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 Bryon Mason, DO prescribe under Medicare Part D?

In 2024, Bryon Mason, DO had 31 Medicare Part D claims for 15 beneficiaries; the average among hospitalist physician prescribers was 521. 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.