Doctor profile · Federal record

Dr. Zachary Demertzis, DO

Clinical Cardiac Electrophysiology Physician · Cardiovascular Disease Physician · Chicago, IL

  • NPI 1225534126
  • 8 yrs on file
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1620 W Harrison St
Chicago, IL 606123801
(312) 942-5000

Credentials & registration

NPPES · NUCC
NPI registered
April 2018 — 8 yrs on file
Profile last updated
June 18, 2025
Specialty taxonomy
207RC0001X — NUCC code
State licenses (2)
Illinois #036174746 · Michigan #5101026289

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1225534126. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$406
Transactions
6
Manufacturers
5
Payer (manufacturer) Industry Txns Amount
Abbott Laboratories 1 $221.00
AstraZeneca Pharmaceuticals Lp 1 $131.90
Boston Scientific Corporation 1 $23.52
Medtronic, INC. 1 $21.16
Zoll Services LLC (A/K/A Zoll LifeCor Corp) 2 $8.28

By nature of payment

Education
$221
Food and Beverage
$185

Frequently asked questions

Auto-generated from federal data
What is Dr. Zachary Demertzis's medical specialty?
Dr. Zachary Demertzis practices Clinical Cardiac Electrophysiology Physician in Chicago, IL.
Where does Dr. Zachary Demertzis practice?
Dr. Zachary Demertzis practices at 1620 W Harrison St, Chicago, IL 606123801. Office phone: 3129425000.
What is Dr. Zachary Demertzis's NPI?
Dr. Zachary Demertzis's National Provider Identifier (NPI) is 1225534126, issued by NPPES.