Markets / Illinois / McHenry County / Northwestern Medicine Mchenry

Hospital · Short-term acute hospital

Who owns Northwestern Medicine Mchenry?

4201 Medical Center Drive · Mchenry, IL · 60050

Overview

Beds354
Discharges19,656cost report 2025
Occupancy69%inpatient days ÷ bed days
Employees (FTE)2,304

Northwestern Medicine Mchenry is a short-term acute hospital in Mchenry, Illinois, operated by Northern Illinois Medical Center. McHenry County has 2 hospitals, 8 nursing homes and 10 urgent care centers.

Ownership

Northwestern Medicine Mchenry is operated by Northern Illinois Medical Center, part of Northwestern Memorial Healthcare.

Operator
Northern Illinois Medical Center
Owner group
Northwestern Memorial Healthcare
Ownership type
Other
Sources

Ownership history

Every dated change of operator and owner for Northwestern Medicine Mchenry, with the source for each.

Request the history

Full ownership tree of Northwestern Memorial Healthcare

Every entity between this facility and its ultimate owner, with ownership percentages and dates.

See the owner report

Finances

From the hospital's Medicare cost report, fiscal year ending 2025.

Net patient revenue$726.6M
Operating expenses$754.2M
Net income$25.7M
Net income as a share of net patient revenue3.5%
Uncompensated care cost$20.4M
Charity care cost$14.9M
Medicaid net revenue$55.2M
Medicare disproportionate share percentage3.0%

Payer mix by inpatient days (2025)

  • Commercial and other 60.9%
  • Medicare 35.3%
  • Medicaid 3.8%

Services

Top inpatient services, Medicare (2024)

ServiceDischargesAverage total payment
Septicemia or severe sepsis without MV >96 hours with MCC · 871621$16K
Heart failure and shock with MCC · 291446$10K
Respiratory infections and inflammations with MCC · 177223$14K
Septicemia or severe sepsis without MV >96 hours without MCC · 872117$9K
Renal failure with CC · 683116$7K

Top outpatient services, Medicare (2024)

ServiceServices
Comprehensive Observation Services · 80111,222
Level 5 Musculoskeletal Procedures · 5115383
Level 2 Excision/ Biopsy/ Incision and Drainage · 5072302
Level 1 Endovascular Procedures · 5191230
Level 3 Vascular Procedures · 5183211

Medicare fee-for-service only. Small counts are suppressed by CMS.

Location and market

Address
4201 Medical Center Drive · Mchenry, IL · 60050
County
McHenry County
State
Illinois
Hospitals in the county2
Nursing homes8
Urgent care centers10

Nearby hospitals

Sources and identifiers

  • Operator: CMS Hospital Enrollments and All Owners (PECOS): hospital ownership graph · CMS record
  • Finances and payer mix: CMS hospital cost reports (HCRIS), fiscal year 2025
  • Services: CMS Medicare inpatient and outpatient utilization
  • Ownership type and beds: CMS Provider of Services file
  • Location: CMS and Census Bureau geography
CMS certification number
140116
NPI
1982611281
Last confirmed
2026-10-23

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