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

John W Belk, DO

Individual provider Emergency Medicine Physician · NPI 1346254984

John W Belk, DO practises Emergency Medicine in Sioux Falls, South Dakota. Graduated from College of Osteo Med of the Pacific at Pomona in 1998, 28 years ago. Practices with St Marys Regional Health Center, a 188-clinician group and accepts Medicare assignment. Licensed in South Dakota.

Years since qualifying
28
Trained at
College of Osteo Med of the Pacific at Pomona
Licensed in
SD
In the registry since
2006
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

800 E 21st St
Sioux Falls, SD 57105-1016 Not confirmed with CMS for 18 years — call before visiting
Phone: (605) 322-2000
Fax: (605) 322-2036
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 5170 (SD)

Record details

NPI number1346254984
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedJuly 28, 2006
Last updated in NPPESMarch 10, 2008

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolCOLLEGE OF OSTEO MED OF THE PACIFIC AT POMONA
Graduated 1998 (28 years in practice)
Group practice St Marys Regional Health Center — 188 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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 patients254
Services billed 410 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

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.

  • Essentia Health St Marys - Detroit Lakes Hospital · Detroit Lakes, MN

Colleagues at St Marys Regional Health Center

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 188 clinicians in the practice; 12 are shown here.

Other providers in Sioux Falls