Doctor profile · Federal record

Dr. Maryeileen Zajac

Nurse Practitioner · Acute Care Nurse Practitioner · Chicago, IL

  • NPI 1114511367
  • Accepts Medicare
  • MIPS 91.3 / 100 · 2023
  • 6 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
675 N Saint Clair St Ste 19-100
Chicago, IL 606115969
(312) 664-3278
fax (312) 695-5774

Credentials & registration

NPPES · NUCC
NPI registered
February 2021 — 5 yrs on file
Profile last updated
June 30, 2021
Year of graduation
2020 — 6 yrs since
Specialty taxonomy
363L00000X — NUCC code
State license (1)
Illinois #209022729

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1114511367. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$38
Transactions
2
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Zoll Services LLC (A/K/A Zoll LifeCor Corp) 2 $38.30

By nature of payment

Food and Beverage
$38

Frequently asked questions

Auto-generated from federal data
What is Dr. Maryeileen Zajac's medical specialty?
Dr. Maryeileen Zajac practices Nurse Practitioner in Chicago, IL.
Where does Dr. Maryeileen Zajac practice?
Dr. Maryeileen Zajac practices at 675 N Saint Clair St Ste 19-100, Chicago, IL 606115969. Office phone: 3126643278.
What is Dr. Maryeileen Zajac's NPI?
Dr. Maryeileen Zajac's National Provider Identifier (NPI) is 1114511367, issued by NPPES.
Does Dr. Maryeileen Zajac accept Medicare assignment?
Yes. Dr. Maryeileen Zajac accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.