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Hospitalist

Derek Johanson, MD

Works at hospitals in Great Falls, MT · Chester, MT · Shelby, MT … · Montana

Summary

Derek Johanson, MD (Hospitalist) is listed by Medicare at 5 hospitals in Great Falls, MT, Chester, MT and Shelby, MT and other places. NPI 1598329237. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Derek Johanson, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

HospitalistPrimary specialty
YesAccepts Medicare assignment
9Years since medical school (graduated 2017)
MaleGender (as listed)
Benefis Hospitals IncGroup practice

Quick answers

Which hospitals does Derek Johanson work at?
Medicare's official clinician data lists Derek Johanson at 5 hospitals: Benefis Hospitals Inc, Logan Health - Chester, Logan Health - Shelby, Northern Montana Hospital and P H S Indian Hospital at Browning - Blackfeet. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Derek Johanson see patients?
Medicare's clinician data lists 1 practice location in Great Falls, MT. Call before your visit to confirm the address.
What is Derek Johanson's specialty?
Medicare lists Hospitalist as the primary specialty.
Does Derek Johanson accept Medicare assignment?
Yes. Medicare's clinician data says Derek Johanson 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 Derek Johanson?
(406) 455-5000, as listed in official Medicare / NPI Registry data.
What is Derek Johanson's NPI number?
1598329237. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Derek Johanson works

Medicare's Facility Affiliation Data lists Derek Johanson at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Derek Johanson is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Derek Johanson as a member of this group (CMS data updated 2026-10-02).

  • Benefis Hospitals Inc384 clinicians in the group

Specialties

Find other Hospitalist doctors in Montana →

Other hospitalists in Great Falls

Clinicians with the same Medicare primary specialty in Great Falls, MT — not a recommendation.

All hospitalists in Great Falls →

Clinician information

CredentialMD
Graduation year2017
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1598329237
CorrectionsReport 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

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians