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Internal Medicine

Marcus Thiemann, DO

Works at hospitals in Palmer, AK · Anchorage, AK · Alaska

Summary

Marcus Thiemann, DO (Internal Medicine) is listed by Medicare at 2 hospitals in Palmer, AK and Anchorage, AK. NPI 1750876629. 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 Thiemann, 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
YesOffers telehealth
8Years since medical school (graduated 2018)
Kansas City University Of Med & Biosciences, College Of Osteo MedMedical school
MaleGender (as listed)
Select Physical Therapy Holdings IncGroup practice (+1 more)

Quick answers

Which hospitals does Marcus Thiemann work at?
Medicare's official clinician data lists Marcus Thiemann at 2 hospitals: Mat-Su Regional Medical Center and Providence Alaska Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Marcus Thiemann see patients?
Medicare's clinician data lists 3 practice locations, including Eagle River, AK and Palmer, AK. Call before your visit to confirm the address.
What is Marcus Thiemann's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Marcus Thiemann accept Medicare assignment?
Yes. Medicare's clinician data says Marcus Thiemann 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 Marcus Thiemann offer telehealth?
Medicare's clinician data says Marcus Thiemann offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Marcus Thiemann?
(907) 694-8085, as listed in official Medicare / NPI Registry data.
What is Marcus Thiemann's NPI number?
1750876629. 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 Thiemann works

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

Group practices

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

  • Select Physical Therapy Holdings Inc2,024 clinicians in the group
  • Mat-Su Valley III LLC28 clinicians in the group

Specialties

Find other Internal Medicine doctors in Alaska →

Other internal medicine doctors in Eagle River

Clinicians with the same Medicare primary specialty in Eagle River, AK — not a recommendation.

All internal medicine doctors in Eagle River →

Clinician information

CredentialDO
Medical schoolKansas City University Of Med & Biosciences, College Of Osteo Med
Graduation year2018
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1750876629
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