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Internal Medicine

Eric A. Larson, MD

Works at hospitals in Armour, SD · Slayton, MN · Luverne, MN … · South Dakota, Minnesota

Summary

Eric A. Larson, MD (Internal Medicine) is listed by Medicare at 5 hospitals in Armour, SD, Slayton, MN and Luverne, MN and other places. NPI 1134124019. 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 Eric A. Larson, 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
30Years since medical school (graduated 1996)
Sanford School Of Medicine Of University Of South DakotaMedical school
MaleGender (as listed)
Sanford Medical CenterGroup practice

Quick answers

Which hospitals does Eric A. Larson work at?
Medicare's official clinician data lists Eric A. Larson at 5 hospitals: Douglas County Memorial Hospital-Cah, Murray County Memorial Hospital, Sanford Luverne Medical Center, Sanford Tracy Medical Center and Sanford Usd Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Eric A. Larson see patients?
Medicare's clinician data lists 4 practice locations, including Sioux Falls, SD. Call before your visit to confirm the address.
What is Eric A. Larson's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Eric A. Larson accept Medicare assignment?
Yes. Medicare's clinician data says Eric A. Larson 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 Eric A. Larson?
(605) 312-2200, as listed in official Medicare / NPI Registry data.
What is Eric A. Larson's NPI number?
1134124019. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Eric A. Larson works

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

Group practices

Medicare enrollment lists Eric A. Larson as a member of this group (CMS data updated 2026-10-02).

  • Sanford Medical Center857 clinicians in the group

Specialties

Find other Internal Medicine doctors in South Dakota →

Other internal medicine doctors in Sioux Falls

Clinicians with the same Medicare primary specialty in Sioux Falls, SD — not a recommendation.

All internal medicine doctors in Sioux Falls →

Clinician information

CredentialMD
Medical schoolSanford School Of Medicine Of University Of South Dakota
Graduation year1996
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1134124019
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