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Critical Care (Intensivists)

Iliya Amaza, MD

Works at hospitals in Darlington, WI · Prairie Du Sac, WI · Madison, WI · Wisconsin

Summary

Dr. Iliya Amaza, MD is a critical care doctor at 1045 W Stephenson St, Freeport, IL 61032. Phone: (815) 599-6000. Accepts Medicare assignment. In 2024, Iliya Amaza had 290 Original Medicare patients and 1,957 services. NPI 1205242732. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

From official Medicare data

This page shows what Medicare's official clinician data says about Iliya Amaza, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Iliya Amaza accept Medicare assignment?
Yes. Medicare's clinician data says Iliya Amaza accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Iliya Amaza see?
In 2024, CMS data shows 290 Original Medicare patients and 1,957 services for Iliya Amaza. This counts Original Medicare only and measures volume, not quality.
What is Iliya Amaza's NPI number?
1205242732. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Iliya Amaza, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients290
Services billed to Medicare1,957
Different services or procedures68
Participating Medicare providerYes
Average age of these patients73

Most frequent services

  1. Test to examine how well the lungs exchange gases (94729)117 services
  2. Test to measure expiratory airflow and volume (94010)107 services
  3. Critical care, first 30-74 minutes (99291)60 services
  4. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)57 services
  5. Test to determine lung volumes using sensors (94726)55 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High blood pressure74%
  • High cholesterol63%
  • COPD47%
  • Arthritis42%
  • Heart failure38%
  • Ischemic heart disease37%

Hospitals where Iliya Amaza works

Medicare's Facility Affiliation Data lists Iliya Amaza at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

Practice locations

Addresses where Iliya Amaza is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Iliya Amaza as a member of these groups (CMS data updated October 2, 2026).

  • University of Wisconsin Medical Foundation Inc2,553 clinicians in the group
  • Freeport Memorial Hospital178 clinicians in the group

Specialties

Find other Critical Care (Intensivists) doctors in Illinois →

Other critical care doctors in Freeport

Clinicians with the same Medicare primary specialty in Freeport, IL — not a recommendation.

All critical care doctors in Freeport →

Other clinicians in University of Wisconsin Medical Foundation Inc

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Graduation year2017 (9 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1205242732
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians