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The 10 largest hospitals in Illinois by staffed beds

Northwestern Memorial Hospital is the largest hospital in Illinois, with 930 staffed beds, followed by University of Chicago Medical Center in Chicago (737) and Advocate Christ Medical Center in Oak Lawn (727). Together the 10 largest hold 6,368 staffed beds in eight cities.

Updated Staffed beds from each hospital's latest Medicare cost reportHow we ranked

Rank by
Location
Illinois
  1. Northwestern Memorial HospitalChicago · Northwestern Medicine930beds4,036HCPs
  2. University of Chicago Medical CenterChicago · UChicago Medicine737beds2,767HCPs
  3. Advocate Christ Medical CenterOak Lawn · Advocate Health727beds2,577HCPs
  4. Evanston HospitalEvanston · Endeavor Health691beds4,152HCPs
  5. OSF Saint Francis Medical CenterPeoria · OSF HealthCare642beds1,882HCPs
  6. Rush University Medical CenterChicago · Rush University System for Health608beds2,180HCPs
  7. Advocate Lutheran General HospitalPark Ridge · Advocate Health586beds1,852HCPs
  8. Loyola University Medical CenterMaywood · Trinity Health516beds1,831HCPs
  9. Carle Foundation HospitalUrbana · Carle Health489beds1,696HCPs
  10. HSHS St. John's HospitalSpringfield · HSHS442beds984HCPs

The 10 largest of 200 Illinois hospitals that report staffed beds. Ranks compare size, not quality of care.

Every hospital in Illinois

The 10 largest Illinois hospitals hold 22% of all staffed beds

200 Illinois hospitals report staffed beds, 29,567 staffed beds in all. The 10 on this list hold 6,368 of it. The median hospital has 114 staffed beds, so Northwestern Memorial Hospital is about 8.2 times that size.

of all staffed beds at Illinois hospitals that report them
22%
the size of the median Illinois hospital, which has 114 staffed beds
8.2×
of the 200 Illinois hospitals that report staffed beds
5%

1,817 executives and department leaders work at the 10 largest Illinois hospitals

Executive leadership is the largest leadership group, with 229, followed by physicians and medical leadership with 220. 22,228 HCPs have a current affiliation at these hospitals, 14,845 of them physicians; internal medicine is the largest physician specialty, with 2,167. Names, titles and contact details are in Dmand AI.

Executive leadership is the biggest leadership group

Executives and department leaders at the 10 largest Illinois hospitals, top 9 departments
  1. Executive leadership229
  2. Physicians and medical leadership220
  3. Operations and administration164
  4. Service lines and programs155
  5. Nursing leadership107
  6. Marketing and patient experience103
  7. Education and training87
  8. Diagnostics72
  9. Finance and accounting52

Source: Dmand AI executive data, Oct 28, 2026

22,228 HCPs have a current affiliation at the 10

HCPs at the 10 largest Illinois hospitals by type, each counted once
  1. Physicians (MD, DO)14,845
  2. Nurses and nurse practitioners4,200
  3. Physician assistants1,613
  4. Behavioral health clinicians674
  5. Other HCPs896

Source: Dmand AI affiliation data, Oct 28, 2026

How we ranked the largest Illinois hospitals

Measure
Staffed beds from each hospital's latest Medicare cost report.
What counts as a hospital
One CMS certification number. A hospital with several campuses under one number counts once.
Field
200 Illinois hospitals in the Dmand AI database report staffed beds.
Ties
Hospitals with the same number share a rank.
HCPs
Healthcare professionals with a current affiliation to the hospital in the Dmand AI database.
What a rank means
Size only. A rank compares staffed beds; it says nothing about quality of care.
Refresh
Monthly. Updated Oct 28, 2026.

FAQ

Questions about the largest Illinois hospitals

Answers from the same data, updated monthly.

What is the largest hospital in Illinois?

Northwestern Memorial Hospital in Chicago, with 930 staffed beds on its latest Medicare cost report. University of Chicago Medical Center is second with 737.

What are the 10 largest hospitals in Illinois?

By staffed beds: Northwestern Memorial Hospital (930), University of Chicago Medical Center (737), Advocate Christ Medical Center (727), Evanston Hospital (691), OSF Saint Francis Medical Center (642), Rush University Medical Center (608), Advocate Lutheran General Hospital (586), Loyola University Medical Center (516), Carle Foundation Hospital (489), HSHS St. John's Hospital (442).

How many staffed beds does a typical Illinois hospital have?

The median Illinois hospital that reports staffed beds has 114 staffed beds, out of 200 that report them.

Why do hospital bed counts differ between lists?

Lists count different beds. This one uses staffed beds: beds set up and staffed for patients during the cost report year, as each hospital reports them to Medicare. Licensed beds, the most a state allows, are usually higher, and some lists add up every campus or every hospital in a health system, so the same hospital can rank differently from one list to the next.

How often is this list updated?

Every month, when the Dmand AI database refreshes. This version is from Oct 28, 2026.

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