Quick answers
- Which hospitals does Mariah C. Johnson work at?
- Medicare's official clinician data lists Mariah C. Johnson at 4 hospitals: Essentia Health Duluth, Essentia Health St Joseph's Medical Center, Essentia Health St Mary's Medical Center and Essentia Health Virginia. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mariah C. Johnson see patients?
- Medicare's clinician data lists 1 practice location in Duluth, MN. Call before your visit to confirm the address.
- What is Mariah C. Johnson's specialty?
- Medicare lists Physician Assistant as the primary specialty.
- Does Mariah C. Johnson accept Medicare assignment?
- Yes. Medicare's clinician data says Mariah C. 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.
- Does Mariah C. Johnson offer telehealth?
- Medicare's clinician data says Mariah C. Johnson offers telehealth services. Ask the office which visits can be done by video or phone.
- What is Mariah C. Johnson's NPI number?
- 1336700079. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Mariah C. Johnson works
Medicare's Facility Affiliation Data lists Mariah C. Johnson at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Essentia Health DuluthDuluth, MN · Acute Care Hospital · CCN 240019
- Essentia Health St Joseph's Medical CenterBrainerd, MN · Acute Care Hospital · CCN 240075
- Essentia Health St Mary's Medical CenterDuluth, MN · Acute Care Hospital · CCN 240002
- Essentia Health VirginiaVirginia, MN · Acute Care Hospital · CCN 240084
Practice locations
Addresses where Mariah C. Johnson is enrolled with Medicare (CMS data updated 2026-10-02).
- 402 E 2nd StDuluth, MN 55805
Group practices
Medicare enrollment lists Mariah C. Johnson as a member of this group (CMS data updated 2026-10-02).
- St Marys Medical Center93 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Duluth
Clinicians with the same Medicare primary specialty in Duluth, MN — not a recommendation.
Clinician information
| Graduation year | 2019 |
|---|---|
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1336700079 |
| 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