Edward J. Zajac, MD
Interventional Cardiology Physician · Sioux City, IA
Edward J. Zajac, MD is an interventional cardiology physician with a practice address in Sioux City, Iowa, and NPI 1265406060, issued on Feb 16, 2006. Check the license (Iowa 32426, as entered in NPPES) on the Iowa Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Edward J. Zajac
- Credential
- MD
- Primary taxonomy
- Interventional Cardiology Physician 207RI0011X
- License numbers
- 32426 IA
20824 NE
4455 SD
Self-reported in NPPES; status is on the state search - Practice location
- 5885 Sunnybrook Dr, Sioux City, IA 51106
- Phone
- (712) 239-4702
- Enumerated
- Feb 16, 2006
- Record last updated
- Oct 15, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (712) 224-5898
- Medicaid ID
- 0172254 IA
- Medicare enrollment
- Enrolled (PECOS I20040511000265); accepts Medicare assignment
- Medical or professional school
- University Of Illinois College Of Med (Chi/Peor/Rock/Chm-Urb), 1981
- Entity
- Type 1 · individual
8 nearest interventional cardiology physician records → All 65 in Iowa → Look up another NPI →
Also registered at 5885 Sunnybrook Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kosta Antonopoulos, D.P.MFoot & Ankle Surgery Podiatrist1043521644
- Roque Arteaga, M.D., FACCClinical Cardiac Electrophysiology Physician1164545505
- Nichole Dybsetter, PTPhysical Therapist1134522923
- Isaac FunkePhysical Therapist1609650506
- Jeremy Hoppe, PT, DPTPhysical Therapist1639568157
- Anne LangloisPhysician Assistant1245539733
Verify Edward J. Zajac in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIowa Board of Medicine
Search for license 32426Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
86% fewer Medicare Part D claims than the average interventional cardiology physician in 2024
440 Medicare Part D claims for 53 beneficiaries, against an average of 3,179 among the 6,605 providers of this specialty who prescribed in Part D. Brand-name drugs were 30% of claims.
Most prescribed
- Atorvastatin Calcium61 claims
- Metoprolol Succinate59 claims
- Clopidogrel49 claims
- Entresto39 claims
- Brilinta23 claims
- Rosuvastatin Calcium23 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: $2,979.64
20 payments; by number, the most common kind was food and beverage; the largest payer was Medtronic, Inc. The 6,394 providers of this specialty with any payment received $7,062.29 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Ida County Iowa Community HospitalSioux City, IA
- Northwest Iowa Hospital CorporationSioux City, IA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Edward J. Zajac among 65 interventional cardiology physician records in Iowa
Edward J. Zajac, MD is one of 65 interventional cardiology physician records with a practice address in Iowa. 97% 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 29% of them.
- NPI issued2006 · 29% of these records are older, 55% newer
- In a Medicare fileYes · 97% of these records are
- In the CMS Doctors and Clinicians fileYes · 86% of these records are
- Graduated1981 · median 2003 among the 56 with a school on file
- Record last updated2015 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RI0011X and a Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Interventional Cardiology Physician providers in Iowa
There are 65 interventional cardiology physician records in Iowa.
All 65 in Iowa → Every provider in Sioux City → Interventional Cardiology Physician nationwide →
The 8 interventional cardiology physician records with the nearest ZIP codes
- Nabil Braiteh, MDSioux City, IA 511011497107270
- Khalid Changal, M.DSioux City, IA 511011861846560
- Robert Armbruster, M.D.Council Bluffs, IA 515031851373666
- Anthony Decicco, MDCouncil Bluffs, IA 515031932499886
- Ann Narmi, M.D.Council Bluffs, IA 515031134348071
- Vaibhav Satija, MDWaterloo, IA 507031629564828
- Manmohan Singh, M.D.Waterloo, IA 507031609262864
- Ahsan Maqsood, MDWaterloo, IA 507021992899702
Common questions
What is Edward J. Zajac, MD's NPI number?
Edward J. Zajac, MD's National Provider Identifier (NPI) is 1265406060, issued on Feb 16, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Edward J. Zajac, MD located?
The NPPES record lists a practice address at 5885 Sunnybrook Dr, Sioux City, IA, 51106. Phone: (712) 239-4702. Providers update this record themselves, so call before visiting.
How can I verify Edward J. Zajac, MD's license?
NPPES lists Iowa license number 32426, as entered by the provider. Search the Iowa Board of Medicine at https://dial.iowa.gov/about-dial/boards-and-commissions/medicine. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Edward J. Zajac, MD prescribe under Medicare Part D?
In 2024, Edward J. Zajac, MD had 440 Medicare Part D claims for 53 beneficiaries; the average among interventional cardiology physician prescribers was 3,179. 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.