NPPES file of Aug 9, 2026

Anthony Paul Fiegen, MD

Orthopaedic Surgery Physician · Sioux Falls, SD

Anthony Paul Fiegen, MD is an orthopaedic surgery physician with a practice address in Sioux Falls, South Dakota, and NPI 1659877736, issued on Apr 5, 2018. Check the license (South Dakota 15341, 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
1659877736
Name
Anthony Paul Fiegen
Credential
MD
Primary taxonomy
Orthopaedic Surgery Physician 207X00000X
License numbers
15341 SD
29142 MN
65835 MN
Self-reported in NPPES; status is on the state search
Practice location
810 E 23RD St, Sioux Falls, SD 57105
Phone
(605) 331-5890
Enumerated
Apr 5, 2018
Record last updated
May 6, 2024
Fax
(605) 271-7617
Medicare enrollment
Enrolled (PECOS I20241101001335); accepts Medicare assignment
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 810 E 23RD St

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

  1. Joseph Albert, ATCAthletic Trainer1902257934
  2. Lee Arnold, PA-CPhysician Assistant1548295967
  3. Jeremy Awori, MDNephrology Physician1326524000
  4. Austin Backer, PTPhysical Therapist1700541117
  5. Gail Benson, MDOrthopaedic Surgery Physician1184659500
  6. Jaymee Benson, PACPhysician Assistant1124664065

Verify Anthony Paul Fiegen 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 15341
    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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82% fewer Medicare Part D claims than the average orthopaedic surgery physician in 2024

64 Medicare Part D claims for 37 beneficiaries, against an average of 346 among the 16,516 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 26 claims were for opioids.

  1. Anthony Fiegen64
  2. Specialty average346

Most prescribed

  1. Hydrocodone-Acetaminophen19 claims
  2. Ondansetron Hcl14 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.

Industry payments in 2024: $32,349.53

53 payments; by number, the most common kind was food and beverage; the largest payer was Arthrex, Inc. The 15,003 providers of this specialty with any payment received $23,022.89 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Anthony Fiegen$32,350
  2. Specialty average$23,023

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Orthopedic Institute PCSioux Center, IA

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

Anthony Paul Fiegen among 113 orthopaedic surgery physician records in South Dakota

Anthony Paul Fiegen, MD is one of 113 orthopaedic surgery physician records with a practice address in South Dakota. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 96% of them.

  • NPI issued2018 · 96% of these records are older, under 1% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 73% of these records are
  • Graduated2018 · median 2005 among the 83 with a school on file
  • Record last updated2024 · 53% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207X00000X and a South Dakota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Orthopaedic Surgery Physician providers in South Dakota

There are 113 orthopaedic surgery physician records in South Dakota.

The 8 orthopaedic surgery physician records with the nearest ZIP codes

  1. Gail Benson, MDSioux Falls, SD 571051184659500
  2. Walter Carlson, MDSioux Falls, SD 571051003823170
  3. John Faryna, MDSioux Falls, SD 571051164734422
  4. Geoffrey Haft, M.D.Sioux Falls, SD 571051497752810
  5. Daniel Johnson, MDSioux Falls, SD 571051548229875
  6. Mitchell Johnson, DOSioux Falls, SD 571051275568693
  7. Jeffrey Kalo, DOSioux Falls, SD 571051982665253
  8. Patrick O'Brien, M.D.Sioux Falls, SD 571051861615155

Common questions

What is Anthony Paul Fiegen, MD's NPI number?

Anthony Paul Fiegen, MD's National Provider Identifier (NPI) is 1659877736, issued on Apr 5, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Anthony Paul Fiegen, MD located?

The NPPES record lists a practice address at 810 E 23RD St, Sioux Falls, SD, 57105. Phone: (605) 331-5890. Providers update this record themselves, so call before visiting.

How can I verify Anthony Paul Fiegen, MD's license?

NPPES lists South Dakota license number 15341, 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 Anthony Paul Fiegen, MD prescribe under Medicare Part D?

In 2024, Anthony Paul Fiegen, MD had 64 Medicare Part D claims for 37 beneficiaries; the average among orthopaedic surgery physician prescribers was 346. 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.