Doctor profile · Federal record

Dr. Edward Zajac, MD

Interventional Cardiology Physician (CMS: Cardiovascular Disease (Cardiology)) · Cardiovascular Disease Physician · Interventional Cardiology Physician · Interventional Cardiology Physician · Sioux City, IA

  • NPI 1265406060
  • Accepts Medicare
  • 45 yrs in practice
  • Licensed in 3 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
5885 Sunnybrook Dr, Suite L-200
Sioux City, IA 511064203
(712) 239-4702
fax (712) 224-5898
Mailing address
Po Box 3128
Sioux City, IA 511023128

Credentials & registration

NPPES · NUCC
NPI registered
February 2006 — 20 yrs on file
Profile last updated
October 15, 2015
Year of graduation
1981 — 45 yrs since
Specialty taxonomy
207RI0011X — NUCC code
State licenses (3)
Iowa #32426 · Nebraska #20824 · South Dakota #4455
Medicaid
IA #0172254

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1265406060. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
203
Distinct HCPCS
9
Medicare allowed
$28,127
HCPCS Description Services Patients Avg allowed
93306 Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 43 42 $64
99152 Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes 26 26 $11
93458 Insertion of tube in left lower heart chamber and coronary artery for diagnosis with review by radiologist 25 25 $225
99214 Established patient office or other outpatient visit, 30-39 minutes 22 21 $91
93460 Insertion of tube in right and left heart chambers and coronary artery for diagnosis with review by radiologist 20 20 $289
93880 Ultrasound of both sides of head and neck blood flow 19 19 $34
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 19 13 $111
92928 Insertion of stents with balloon dilation of coronary artery or branch, single artery or branch 16 12 $427
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 13 13 $162

In context: peer comparison

Among 2 peers in this city , average services per provider: 50. This provider delivers 4.1× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$2,980
Transactions
20
Manufacturers
7
Payer (manufacturer) Industry Txns Amount
Medtronic, Inc. 13 $2,565.17
Boston Scientific Corporation 2 $195.00
AstraZeneca Pharmaceuticals LP 1 $80.51
Inari Medical, Inc. 1 $80.12
ABIOMED 1 $28.96
PFIZER INC. 1 $15.63
Abbott Laboratories 1 $14.25

By nature of payment

Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program
$1,225
Travel and Lodging
$1,066
Food and Beverage
$689

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
398
Patients
55
Total drug cost
$50,636
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 112 26 $962
Metoprolol Succinate Generic 73 16 $517
Clopidogrel (Clopidogrel Bisulfate) Brand 51 0 $272
Brilinta (Ticagrelor) Brand 38 13 $19,021
Spironolactone Generic 30 0 $91
Isosorbide Mononitrate Er (Isosorbide Mononitrate) Brand 27 0 $167
Entresto (Sacubitril/Valsartan) Brand 25 0 $20,566
Rosuvastatin Calcium Generic 19 0 $267
Lisinopril Generic 12 0 $31
Eliquis (Apixaban) Brand 11 0 $8,742

Frequently asked questions

Auto-generated from federal data
What is Dr. Edward Zajac's medical specialty?
Dr. Edward Zajac practices Interventional Cardiology Physician in Sioux City, IA.
Where does Dr. Edward Zajac practice?
Dr. Edward Zajac practices at 5885 Sunnybrook Dr, Sioux City, IA 511064203. Office phone: 7122394702.
What is Dr. Edward Zajac's NPI?
Dr. Edward Zajac's National Provider Identifier (NPI) is 1265406060, issued by NPPES.
Does Dr. Edward Zajac accept Medicare assignment?
Yes. Dr. Edward Zajac accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Edward Zajac commonly perform?
Top Medicare-reported procedures in 2023: Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (HCPCS 93306); Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older) (HCPCS 99152); Insertion of tube in left lower heart chamber and coronary artery for diagnosis with review by radiologist (HCPCS 93458). Source: CMS Medicare Physician & Other Practitioners file.