Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Anesthesiology

Marcus Dee, DO

Works at hospitals in Billings, MT · Bozeman, MT · Montana

Summary

Marcus Dee, DO (Anesthesiology) is listed by Medicare at 2 hospitals in Billings, MT and Bozeman, MT. NPI 1063975407. 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 Marcus Dee, 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

AnesthesiologyPrimary specialty
YesAccepts Medicare assignment
7Years since medical school (graduated 2019)
Arizona College Of Osteopathic Medicine Mid Western UniversityMedical school
MaleGender (as listed)
Billings Clinic Specialty Supplies and Services, LLCGroup practice (+1 more)

Quick answers

Which hospitals does Marcus Dee work at?
Medicare's official clinician data lists Marcus Dee at 2 hospitals: Billings Clinic Hospital and Bozeman Health Deaconess Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Marcus Dee see patients?
Medicare's clinician data lists 3 practice locations, including Billings, MT and Bozeman, MT. Call before your visit to confirm the address.
What is Marcus Dee's specialty?
Medicare lists Anesthesiology as the primary specialty.
Does Marcus Dee accept Medicare assignment?
Yes. Medicare's clinician data says Marcus Dee 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 Marcus Dee?
(406) 657-4000, as listed in official Medicare / NPI Registry data.
What is Marcus Dee's NPI number?
1063975407. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Marcus Dee works

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

Group practices

Medicare enrollment lists Marcus Dee as a member of these groups (CMS data updated 2026-10-02).

  • Billings Clinic Specialty Supplies and Services, LLC824 clinicians in the group
  • Gallatin Valley Anesthesia Associates PC35 clinicians in the group

Specialties

Find other Anesthesiology doctors in Montana →

Other anesthesiologists in Billings

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

All anesthesiologists in Billings →

Clinician information

CredentialDO
Medical schoolArizona College Of Osteopathic Medicine Mid Western University
Graduation year2019
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1063975407
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