NPI Portal NPI Lookup & Verification

Dr. Mark Donald Fleming, MD

Dr. Mark Donald Fleming is a Vascular Surgery Physician provider (Surgery) practicing in Sioux Falls, SD, registered in the NPPES registry with NPI 1841255932 since 2006. The credential MD stands for Doctor of Medicine.

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NPI 1841255932
Entity type Individual (Type 1)
Name Dr. Mark Donald Fleming
Credential MD
Sex Male
Practice address 4520 W 69TH ST, Sioux Falls, SD, 57108
Phone 6059775000
Fax 6059775377
Enumeration date 2006-04-20
Last updated in NPPES 2023-07-07

Taxonomy & licenses

Taxonomy code Specialty Primary License State
208600000X Surgery Physician Secondary 51100 MN
2086S0129X Vascular Surgery Physician Secondary TP952 KY
2086S0129X Vascular Surgery Physician Secondary 55554 KY
2086S0129X Vascular Surgery Physician Secondary 51100 MN
2086S0129X Vascular Surgery Physician Primary 14037 SD

MD — Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
P00931367 Other RAILROAD MEDICARE
500619443 Medicaid OR
Copy-ready billing details
Provider: Mark Fleming, MD
NPI: 1841255932
Taxonomy: 2086S0129X (Vascular Surgery Physician)
Address: 4520 W 69TH ST, Sioux Falls, SD, 57108

Other providers at this practice address

NPI Name Type Specialty Location
1285622670 North Central Heart Institute Organization Cardiovascular Disease Physician Sioux Falls, SD
1811985211 Peter Andreone Individual Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician Sioux Falls, SD
1396733705 Raymond Allen Individual Interventional Cardiology Physician Sioux Falls, SD
1174504658 Sean Halligan Individual Interventional Cardiology Physician Sioux Falls, SD
1720060858 Sherrie Brooks Individual Cardiovascular Disease Physician Sioux Falls, SD
1457323081 Christopher Stanton Individual Clinical Cardiac Electrophysiology Physician Sioux Falls, SD
1629045828 Jeremy Scott Individual Interventional Cardiology Physician Sioux Falls, SD
1841252541 Kelly Wasko Individual Nurse Practitioner Sioux Falls, SD

Verify this record

Cross-check NPI 1841255932 against the authoritative CMS record: view Dr. Mark Donald Fleming on the official NPPES registry .

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.

Frequently asked questions

What specialty is Mark Fleming?
Mark Fleming is registered in NPPES with the primary taxonomy of Vascular Surgery Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2023-07-07.