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Family Practice

Spencer M. Steffen, MD

Works at hospitals in Rapid City, SD · Spearfish, SD · South Dakota

Summary

Spencer M. Steffen, MD (Family Practice) is listed by Medicare at 3 hospitals in Rapid City, SD and Spearfish, SD. NPI 1104318641. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Spencer M. Steffen, 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

Family PracticePrimary specialty
May acceptAccepts Medicare assignment
8Years since medical school (graduated 2018)
University Of Nebraska College Of MedicineMedical school
MaleGender (as listed)

Quick answers

Which hospitals does Spencer M. Steffen work at?
Medicare's official clinician data lists Spencer M. Steffen at 3 hospitals: Black Hills Surgical Hospital LLC, Monument Health Rapid City Hospital and Monument Health Spearfish Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Spencer M. Steffen see patients?
Medicare's clinician data lists 1 practice location in Rapid City, SD. Call before your visit to confirm the address.
What is Spencer M. Steffen's specialty?
Medicare lists Family Practice as the primary specialty.
Does Spencer M. Steffen accept Medicare assignment?
Medicare's clinician data says Spencer M. Steffen may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
What is Spencer M. Steffen's NPI number?
1104318641. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Spencer M. Steffen works

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

Specialties

Find other Family Practice doctors in South Dakota →

Other family doctors in Rapid City

Clinicians with the same Medicare primary specialty in Rapid City, SD — not a recommendation.

All family doctors in Rapid City →

Clinician information

CredentialMD
Medical schoolUniversity Of Nebraska College Of Medicine
Graduation year2018
Gender (as listed)Male
Medicare assignmentMay accept for some services
NPI (National Provider Identifier)1104318641
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