NPPES file of Aug 9, 2026

Mark Donald Fleming, MD

Vascular Surgery Physician · Sioux Falls, SD

Mark Donald Fleming, MD is a vascular surgery physician with a practice address in Sioux Falls, South Dakota, and NPI 1841255932, issued on Apr 20, 2006. Check the license (South Dakota 14037, 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
1841255932
Name
Mark Donald Fleming
Credential
MD
Primary taxonomy
Vascular Surgery Physician 2086S0129X
License numbers
14037 SD
55554 KY
TP952 KY
51100 MN
Self-reported in NPPES; status is on the state search
Practice location
4520 W 69TH St, Sioux Falls, SD 57108
Phone
(605) 977-5000
Enumerated
Apr 20, 2006
Record last updated
Jul 7, 2023
Fax
(605) 977-5377
Medicaid ID
500619443 OR
Medicare enrollment
Enrolled (PECOS I20240215003076); accepts Medicare assignment
Medical or professional school
University Of Arizona College Of Medicine, 2003
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 4520 W 69TH St

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

  1. Jonathon Adams, MDClinical Cardiac Electrophysiology Physician1578683249
  2. Kathryn Adams, CNPFamily Nurse Practitioner1437668027
  3. Raymond Allen, MDInterventional Cardiology Physician1396733705
  4. Fawzi Ameer, M.D.Cardiovascular Disease Physician1790195402
  5. Peter Andreone, MDThoracic Surgery (Cardiothoracic Vascular Surgery) Physician1811985211
  6. Fnu Ayesha Azmeen, MDAdvanced Heart Failure and Transplant Cardiology Physician1588152540

Verify Mark Donald Fleming 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 14037
    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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81% more Medicare Part D claims than the average vascular surgery physician in 2024

363 Medicare Part D claims for 108 beneficiaries, against an average of 201 among the 3,936 providers of this specialty who prescribed in Part D. Brand-name drugs were 23% of claims.

  1. Mark Fleming363
  2. Specialty average201

Most prescribed

  1. Clopidogrel120 claims
  2. Atorvastatin Calcium61 claims
  3. Rosuvastatin Calcium50 claims
  4. Eliquis45 claims
  5. Xarelto35 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: $16,290.51

42 payments; by number, the most common kind was food and beverage; the largest payer was Medtronic, Inc. The 4,059 providers of this specialty with any payment received $6,178.00 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Mark Fleming$16,291
  2. Specialty average$6,178

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. Heart Hospital OF South Dakota LLCSpencer, IA

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

Mark Donald Fleming among 14 vascular surgery physician records in South Dakota

Mark Donald Fleming, MD is one of 14 vascular surgery physician records with a practice address in South Dakota. 93% 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 0% of them.

  • NPI issued2006 · 0% of these records are older, 71% newer
  • In a Medicare fileYes · 93% of these records are
  • In the CMS Doctors and Clinicians fileYes · 79% of these records are
  • Graduated2003 · median 2007 among the 11 with a school on file
  • Record last updated2023 · 14% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2086S0129X and a South Dakota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Vascular Surgery Physician providers in South Dakota

There are 14 vascular surgery physician records in South Dakota.

The 8 vascular surgery physician records with the nearest ZIP codes

  1. Dustin Weiss, M.D.Sioux Falls, SD 571081164615738
  2. Thekla Bacharach, M.D.Sioux Falls, SD 571051225442171
  3. Anand Dayama, M.D.Sioux Falls, SD 571051891050969
  4. Patrick Kelly, MDSioux Falls, SD 571051134189160
  5. Gregory NissenSioux Falls, SD 571051174813729
  6. Angelo Santos, M.D.Sioux Falls, SD 571051861628059
  7. Greg Schultz, MDSioux Falls, SD 571051881640241
  8. Frank Vandy, M.D.Sioux Falls, SD 571051922219344

Common questions

What is Mark Donald Fleming, MD's NPI number?

Mark Donald Fleming, MD's National Provider Identifier (NPI) is 1841255932, issued on Apr 20, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Mark Donald Fleming, MD located?

The NPPES record lists a practice address at 4520 W 69TH St, Sioux Falls, SD, 57108. Phone: (605) 977-5000. Providers update this record themselves, so call before visiting.

How can I verify Mark Donald Fleming, MD's license?

NPPES lists South Dakota license number 14037, 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 Mark Donald Fleming, MD prescribe under Medicare Part D?

In 2024, Mark Donald Fleming, MD had 363 Medicare Part D claims for 108 beneficiaries; the average among vascular surgery physician prescribers was 201. 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.