Doctor profile · Federal record

Dr. Marek Siorek, M.D.

Vascular & Interventional Radiology Physician (CMS: Interventional Radiology) · Sioux Falls, SD

  • NPI 1396995338
  • Accepts Medicare
  • 18 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1325 S Cliff Ave
Sioux Falls, SD 571051007
(206) 386-2121

Credentials & registration

NPPES · NUCC
NPI registered
September 2008 — 18 yrs on file
Profile last updated
April 6, 2022
Year of graduation
2008 — 18 yrs since
Specialty taxonomy
2085R0204X — NUCC code
State license (1)
South Dakota #12762

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1396995338. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
2,406
Distinct HCPCS
10
Medicare allowed
$154,100
HCPCS Description Services Patients Avg allowed
99152 Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes 499 434 $11
76937 Ultrasonic guidance for blood vessel access 258 210 $13
93970 Ultrasound study of arm or leg veins with compression and maneuvers 178 166 $31
75774 Review by radiologist of additional artery image 168 34 $44
77001 Fluoroscopic guidance for insertion or removal of central vein access device 137 124 $17
93971 Ultrasound study of one arm or leg veins with compression and maneuvers 132 128 $20
77012 Review by radiologist of ct guidance for needle placement 81 81 $67
36248 Insertion of tube into abdominal, pelvic, or leg artery, additional second, third, and beyond 79 23 $44
75726 Review by radiologist of abdominal artery image 64 24 $90
36558 Insertion of tunneled central venous tube for infusion (5 years or older) 52 48 $234

In context: peer comparison

Among 1 peers in Sioux Falls Vascular & Interventional Radiology Physician, average services per provider: 60. This provider delivers 40× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$465
Transactions
19
Manufacturers
7
Payer (manufacturer) Industry Txns Amount
Boston Scientific Corporation 8 $253.55
Inari Medical, INC. 5 $84.63
Bard Peripheral Vascular, INC. 2 $50.55
TriSalus Life Sciences, INC. 1 $26.62
Becton, Dickinson and Company 1 $19.34
Davol INC. 1 $16.44
Asahi Intecc USA, INC. 1 $13.62

By nature of payment

Food and Beverage
$465

Frequently asked questions

Auto-generated from federal data
What is Dr. Marek Siorek's medical specialty?
Dr. Marek Siorek practices Vascular & Interventional Radiology Physician in Sioux Falls, SD.
Where does Dr. Marek Siorek practice?
Dr. Marek Siorek practices at 1325 S Cliff Ave, Sioux Falls, SD 571051007. Office phone: 2063862121.
What is Dr. Marek Siorek's NPI?
Dr. Marek Siorek's National Provider Identifier (NPI) is 1396995338, issued by NPPES.
Does Dr. Marek Siorek accept Medicare assignment?
Yes. Dr. Marek Siorek accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Marek Siorek commonly perform?
Top Medicare-reported procedures in 2023: Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older) (HCPCS 99152); Ultrasonic guidance for blood vessel access (HCPCS 76937); Ultrasound study of arm or leg veins with compression and maneuvers (HCPCS 93970). Source: CMS Medicare Physician & Other Practitioners file.