NPPES file of Aug 9, 2026

John W. Belk, DO

Emergency Medicine Physician · Sioux Falls, SD

John W. Belk, DO is an emergency medicine physician with a practice address in Sioux Falls, South Dakota, and NPI 1346254984, issued on Jul 28, 2006. Check the license (South Dakota 5170, as entered in NPPES) on the South Dakota Board of Medical and Osteopathic Examiners; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1346254984
Name
John W. Belk
Credential
DO
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
5170 SD
Self-reported in NPPES; status is on the state search
Practice location
800 E 21St St, Sioux Falls, SD 57105
Phone
(605) 322-2000
Enumerated
Jul 28, 2006
Record last updated
Mar 10, 2008 (not updated in 18 years: call before relying on the address or phone)
Fax
(605) 322-2036
Medicaid IDs
0568907 IA
46022474331 NE
6004650 SD
Medicare enrollment
Enrolled (PECOS I20100929000384); accepts Medicare assignment
Medical or professional school
College Of Osteo Med Of The Pacific At Pomona, 1998
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 800 E 21St St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. James Barnett, CRNACertified Registered Nurse Anesthetist1730174582
  2. Nancy Bertsch, RDRegistered Dietitian1740442631
  3. Dori BignerInternal Medicine Physician1972529915
  4. Vicki BinstockPhysical Rehabilitation Occupational Therapist1851670731
  5. Paul Bommersbach, CRNACertified Registered Nurse Anesthetist1194710939
  6. Jamie Boomgarden, P.T.Physical Therapist1922258425

Verify John W. Belk in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersSouth Dakota Board of Medical and Osteopathic Examiners
    Search for license 5170
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the South Dakota license search

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51% fewer Medicare Part D claims than the average emergency medicine physician in 2024

111 Medicare Part D claims for 91 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.

  1. John Belk111
  2. Specialty average226

Most prescribed

  1. Ondansetron Odt23 claims
  2. Prednisone16 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Bills Medicare through one group practice

  1. St Marys Regional Health CenterDetroit Lakes, MN

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

John W. Belk among 122 emergency medicine physician records in South Dakota

John W. Belk, DO is one of 122 emergency medicine physician records with a practice address in South Dakota. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 5% of them.

  • NPI issued2006 · 5% of these records are older, 55% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileYes · 38% of these records are
  • Graduated1998 · median 2005 among the 45 with a school on file
  • Record last updated2008 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a South Dakota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Emergency Medicine Physician providers in South Dakota

There are 122 emergency medicine physician records in South Dakota.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Shelley Driver, MDSioux Falls, SD 571051942210679
  2. Donald Ellis, MDSioux Falls, SD 571051326048760
  3. Jared Friedman, MDSioux Falls, SD 571051306852694
  4. Robert Harms, MDSioux Falls, SD 571051942210687
  5. Donald Kosiak, MDSioux Falls, SD 571051073541215
  6. Beth Lapka, MDSioux Falls, SD 571051497765937
  7. Lucas Mailander, MDSioux Falls, SD 571051093742934
  8. Brian Skow, M.D.Sioux Falls, SD 571051922083831

Common questions

What is John W. Belk, DO's NPI number?

John W. Belk, DO's National Provider Identifier (NPI) is 1346254984, issued on Jul 28, 2006. An NPI identifies a provider in billing; it is not a license.

Where is John W. Belk, DO located?

The NPPES record lists a practice address at 800 E 21St St, Sioux Falls, SD, 57105. Phone: (605) 322-2000. Providers update this record themselves, so call before visiting.

How can I verify John W. Belk, DO's license?

NPPES lists South Dakota license number 5170, as entered by the provider. Search the South Dakota Board of Medical and Osteopathic Examiners at https://www.sdbmoe.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does John W. Belk, DO prescribe under Medicare Part D?

In 2024, John W. Belk, DO had 111 Medicare Part D claims for 91 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.