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Internal Medicine

Mitchell C. Marzo, MD

Works at hospitals in Libby, MT · Whitefish, MT · Kalispell, MT · Montana

Summary

Mitchell C. Marzo, MD (Internal Medicine) is listed by Medicare at 3 hospitals in Libby, MT, Whitefish, MT and Kalispell, MT. NPI 1851594626. 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 Mitchell C. Marzo, 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

Internal MedicinePrimary specialty
YesAccepts Medicare assignment
20Years since medical school (graduated 2006)
University Of Colorado School Of Medicine, DenverMedical school
MaleGender (as listed)
Kalispell Regional Medical Center IncGroup practice (+2 more)

Quick answers

Which hospitals does Mitchell C. Marzo work at?
Medicare's official clinician data lists Mitchell C. Marzo at 3 hospitals: Cabinet Peaks Medical Center, Logan Health - Whitefish and Logan Health Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Mitchell C. Marzo see patients?
Medicare's clinician data lists 3 practice locations, including Whitefish, MT, Libby, MT and Kalispell, MT. Call before your visit to confirm the address.
What is Mitchell C. Marzo's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Mitchell C. Marzo accept Medicare assignment?
Yes. Medicare's clinician data says Mitchell C. Marzo 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 Mitchell C. Marzo?
(406) 863-3500, as listed in official Medicare / NPI Registry data.
What is Mitchell C. Marzo's NPI number?
1851594626. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Mitchell C. Marzo works

Medicare's Facility Affiliation Data lists Mitchell C. Marzo 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 Mitchell C. Marzo is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Mitchell C. Marzo as a member of these groups (CMS data updated 2026-10-02).

  • Kalispell Regional Medical Center Inc421 clinicians in the group
  • Logan Health - Whitefish46 clinicians in the group
  • St Johns Lutheran Hospital Inc34 clinicians in the group

Specialties

Find other Internal Medicine doctors in Montana →

Other internal medicine doctors in Whitefish

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

All internal medicine doctors in Whitefish →

Clinician information

CredentialMD
Medical schoolUniversity Of Colorado School Of Medicine, Denver
Graduation year2006
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1851594626
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