NPPES file of Aug 9, 2026

Brad Allen Janson, M.D.

Diagnostic Radiology Physician · Mason City, IA

Brad Allen Janson, M.D. is a diagnostic radiology physician with a practice address in Mason City, Iowa, and NPI 1497709372, issued on May 22, 2006. Check the license (Iowa 27993, as entered in NPPES) on the Iowa Board of Medicine; the federal record below is the public data PlainDoctor holds for this provider.

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

NPPES recordNPPES file of Aug 9, 2026
1497709372
Name
Brad Allen Janson
Credential
M.D.
Primary taxonomy
Diagnostic Radiology Physician 2085R0202X
License number
27993 IA
Self-reported in NPPES; status is on the state search
Practice location
1010 4TH St SW, Mason City, IA 50401
Phone
(641) 424-0102
Enumerated
May 22, 2006
Record last updated
Feb 9, 2023
Medicaid ID
1034967 IA
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest diagnostic radiology physician records → All 364 in Iowa → Look up another NPI →

Also registered at 1010 4TH St SW

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

  1. Amber Alberts, MDStudent in an Organized Health Care Education/Training Program1215671516
  2. Ignatius Alden, MDStudent in an Organized Health Care Education/Training Program1285323535
  3. Luan Bargman, PAPhysician Assistant1073525010
  4. Nancy Beavers, ARNPObstetrics & Gynecology Nurse Practitioner1447275540
  5. David Beck, MDNeurological Surgery Physician1710099809
  6. Timothy Becker, RPHPharmacist1477563955

Verify Brad Allen Janson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIowa Board of Medicine
    Search for license 27993    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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Brad Allen Janson among 364 diagnostic radiology physician records in Iowa

Brad Allen Janson, M.D. is one of 364 diagnostic radiology physician records with a practice address in Iowa. 61% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 20% of them.

  • NPI issued2006 · 20% of these records are older, 53% newer
  • In a Medicare fileNo · 61% of these records are
  • In the CMS Doctors and Clinicians fileNo · 55% of these records are
  • Record last updated2023 · 50% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0202X and a Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

16 diagnostic radiology physician records list a practice address in Mason City

They are 16 of the 866 NPPES records with a practice address in Mason City, and 364 diagnostic radiology physician records in Iowa. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 364 in Iowa → Every provider in Mason City → Diagnostic Radiology Physician nationwide →

The 8 diagnostic radiology physician records with the nearest ZIP codes

  1. Robert Berg, MDMason City, IA 504011366497943
  2. Jackson HerzogMason City, IA 504011033501010
  3. Ryan Holthaus, M.D.Mason City, IA 504011609822873
  4. Timothy Lucas, M.D.Mason City, IA 504011740233428
  5. William Matthews, M.D.Mason City, IA 504011114973377
  6. Bryan Navarette, M.D., M.P.H.Mason City, IA 504011164640041
  7. Hubert Oakley, M.D.Mason City, IA 504011629149844
  8. Joseph Ocel, M.D.Mason City, IA 504011780661280

Common questions

What is Brad Allen Janson, M.D.'s NPI number?

Brad Allen Janson, M.D.'s National Provider Identifier (NPI) is 1497709372, issued on May 22, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Brad Allen Janson, M.D. located?

The NPPES record lists a practice address at 1010 4TH St SW, Mason City, IA, 50401. Phone: (641) 424-0102. Providers update this record themselves, so call before visiting.

How can I verify Brad Allen Janson, M.D.'s license?

NPPES lists Iowa license number 27993, 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. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.