Quick answers
- Which hospitals does Mark E. Johnson work at?
- Medicare's official clinician data lists Mark E. Johnson at 3 hospitals: Astera Health, CentraCare - St. Cloud Hospital and St Gabriels Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mark E. Johnson see patients?
- Medicare's clinician data lists 10 practice locations, including Alexandria, MN, Saint Cloud, MN and St Cloud, MN. Call before your visit to confirm the address.
- What is Mark E. Johnson's specialty?
- Medicare lists Cardiovascular Disease (Cardiology) as the primary specialty.
- Does Mark E. Johnson accept Medicare assignment?
- Yes. Medicare's clinician data says Mark E. 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 the phone number for Mark E. Johnson?
- (800) 835-6652, as listed in official Medicare / NPI Registry data.
- What is Mark E. Johnson's NPI number?
- 1568454502. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Mark E. Johnson works
Medicare's Facility Affiliation Data lists Mark E. Johnson at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Astera HealthWadena, MN · Critical Access Hospital · CCN 241354
- CentraCare - St. Cloud HospitalSaint Cloud, MN · Acute Care Hospital · CCN 240036
- St Gabriels HospitalLittle Falls, MN · Critical Access Hospital · CCN 241370
Practice locations
Addresses where Mark E. Johnson is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 10; the Medicare profile lists all.
- 111 17th E Ave, Centracare Dialysis AlexandriaAlexandria, MN 56308 (800) 835‑6652
- 1200 6th Ave NSaint Cloud, MN 56303
- 1200 6th Ave NSt Cloud, MN 56303 (320) 252‑5131
- 1200 6th Ave N, Centracare Clic River CampusSaint Cloud, MN 56303 (320) 252‑5131
- 1200 6th N AveSaint Cloud, MN 56303 (320) 252‑5131
Group practices
Medicare enrollment lists Mark E. Johnson as a member of these groups (CMS data updated 2026-10-02).
- CentraCare Clinic791 clinicians in the group
- Astera Health107 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in Minnesota →
Other cardiologists in Minnesota
Clinicians with the same Medicare primary specialty in Minnesota — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Sanford School Of Medicine Of University Of South Dakota |
| Graduation year | 1982 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1568454502 |
| 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