Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Dr. Mark David Schaefer, MD

Individual provider Emergency Medicine Physician · NPI 1043664022

Dr. Mark David Schaefer, MD practises Emergency Medicine in Billings, Montana. Graduated from University of Washington School of Medicine in 2016, 10 years ago. Practices with Scl Health Medical Group - Billings LLC, a 292-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in Montana.

Years since qualifying
10
Trained at
University of Washington School of Medicine
Licensed in
MT
In the registry since
2016
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1233 N 30th St
Billings, MT 59101
Phone: (406) 237-4116
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 11234 Anderson St, Loma Linda, CA 92354-2804 — (909) 558-4085
  • 11234 Anderson St, Loma Linda, CA 92354-2804 — (909) 558-4085

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 77136 (MT)

Record details

NPI number1043664022
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 15, 2016
Last updated in NPPESJuly 24, 2019

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyEMERGENCY MEDICINE
Medical schoolUNIVERSITY OF WASHINGTON SCHOOL OF MEDICINE
Graduated 2016 (10 years in practice)
Group practice Scl Health Medical Group - Billings Llc — 292 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients471
Services billed 529 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

  • Cody Regional Health Hospital · Cody, WY · listed as Cody Regional Health EMS
  • Intermountain Health St Vincent Regional Hospital Hospital · Billings, MT

Colleagues at Scl Health Medical Group - Billings LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 292 clinicians in the practice; 12 are shown here.

Other providers in Billings