Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Andrew Z. Zasada, MD

Individual provider Emergency Medicine Physician · NPI 1679590269

Andrew Z. Zasada, MD practises Emergency Medicine in Mattoon, Illinois. Qualified in 1982, 44 years ago. Practices with Iems Physician Services PLLC, a 55-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Illinois and New York.

Years since qualifying
44
Licensed in
IL, NY
In the registry since
2006
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1000 Health Center Dr
Mattoon, IL 61938
Phone: (217) 238-4325
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 200 E Fairman Ave, Watseka, IL 60970-1644 — (815) 432-5841

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence 036-074571 (IL)
Emergency Medicine Physician Taxonomy 207P00000X · Licence 036-074571 (IL)
Emergency Medicine Physician Taxonomy 207P00000X · Licence 183698-1 (NY)

Record details

NPI number1679590269
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 17, 2006
Last updated in NPPESAugust 22, 2023
Certification dateAugust 22, 2023

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyEMERGENCY MEDICINE
Also practisesINTERNAL MEDICINE
Medical schoolOTHER
Graduated 1982 (44 years in practice)
Group practice Iems Physician Services Pllc — 55 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients179
Services billed 212 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

  • Osf Heart Of Mary Medical Center Hospital · Urbana, IL
  • Osf Sacred Heart Medical Center Hospital · Danville, IL

Colleagues at Iems Physician Services PLLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 55 clinicians in the practice; 12 are shown here.

Other providers in Mattoon