Quick answers
- Which hospitals does Bryon N. Johnson work at?
- Medicare's official clinician data lists Bryon N. Johnson at 5 hospitals: Dallas County Hospital, Knoxville Hospital & Clinics, Madison County Health Care System, MercyOne Des Moines Medical Center and Pella Regional Health Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Bryon N. Johnson see patients?
- Medicare's clinician data lists 5 practice locations, including Des Moines, IA, West Des Moines, IA and Winterset, IA. Call before your visit to confirm the address.
- What is Bryon N. Johnson's specialty?
- Medicare lists Internal Medicine as the primary specialty, and also Critical Care (Intensivists).
- Does Bryon N. Johnson accept Medicare assignment?
- Yes. Medicare's clinician data says Bryon N. Johnson accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is Bryon N. Johnson's NPI number?
- 1134339989. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Bryon N. Johnson works
Medicare's Facility Affiliation Data lists Bryon N. Johnson at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Dallas County HospitalPerry, IA · Critical Access Hospital · CCN 161322
- Knoxville Hospital & ClinicsKnoxville, IA · Critical Access Hospital · CCN 161355
- Madison County Health Care SystemWinterset, IA · Critical Access Hospital · CCN 161326
- MercyOne Des Moines Medical CenterDes Moines, IA · Acute Care Hospital · CCN 160083
- Pella Regional Health CenterPella, IA · Critical Access Hospital · CCN 161367
Practice locations
Addresses where Bryon N. Johnson is enrolled with Medicare (CMS data updated 2026-10-02).
- 1111 6th AveDes Moines, IA 50314
- 1755 59th PlWest Des Moines, IA 50266
- 300 W Hutchings StWinterset, IA 50273
- 330 Laurel St, Suite 1200Des Moines, IA 50314
- 411 Laurel StDes Moines, IA 50314
Group practices
Medicare enrollment lists Bryon N. Johnson as a member of these groups (CMS data updated 2026-10-02).
- Mercy Clinics Inc443 clinicians in the group
- Madison County Memorial Hospital41 clinicians in the group
Specialties
Other internal medicine doctors in Des Moines
Clinicians with the same Medicare primary specialty in Des Moines, IA — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Graduation year | 2004 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1134339989 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians