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

Mark Erickson, MD

Individual provider Internal Medicine Physician · NPI 1083651707

Mark Erickson, MD is a Hospitalist in Sioux Falls, South Dakota. Graduated from Sanford School of Medicine of University of South Dakota in 1999, 27 years ago. Practices with Sanford Clinic, a 273-clinician group and accepts Medicare assignment. Licensed in Iowa and South Dakota.

Years since qualifying
27
Trained at
Sanford School of Medicine of University of South Dakota
Licensed in
IA, SD
In the registry since
2006
Specialties on file
3
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

1305 W 18th St
Sioux Falls, SD 57117-5039
Phone: (605) 328-4973
Fax: (605) 328-4973
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence 5365 (SD)
Internal Medicine Physician Taxonomy 207R00000X · Licence 5365 (SD)
Internal Medicine Physician Taxonomy 207R00000X · Licence 34529 (IA)

Record details

NPI number1083651707
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 1, 2006
Last updated in NPPESApril 4, 2023
Certification dateApril 4, 2023

Medicare enrollment

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

Medicare specialtyHOSPITALIST
Also practisesINTERNAL MEDICINE
Medical schoolSANFORD SCHOOL OF MEDICINE OF UNIVERSITY OF SOUTH DAKOTA
Graduated 1999 (27 years in practice)
Group practice Sanford Clinic — 273 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 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 patients189
Services billed 195 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

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.

Colleagues at Sanford Clinic

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 273 clinicians in the practice; 12 are shown here.

Other providers in Sioux Falls