Hospital Directory USA
Acute care hospital Emergency roomLevel II trauma

Northwestern Lake Forest Hospital in Lake Forest, IL

Also known as Northwestern Medicine Lake Forest Hospital

Directions (847) 234-5600 nm.org

In a medical emergency, call 911. This page is for information only.

Overview

About Northwestern Lake Forest Hospital

Northwestern Lake Forest Hospital is an acute care hospital in Lake Forest, Lake County, Illinois. It reports its ownership to Medicare as nonprofit (other). It provides emergency services. It is listed as a Level II trauma center. Its CMS Overall Hospital Quality Star Rating is 5 out of 5. It has 114 licensed beds, according to state license data via HIFLD. It meets the CMS Birthing-Friendly designation criteria for maternity care. The nearest other listed hospital is North Chicago VA Medical Center, about 3.5 mi away.

CMS Care Compare

Quality ratings

5
Overall Hospital Quality Star Rating, out of 5

How this hospital compares with the national rate on each measure group:

Mortality
4 better · 3 no different
Deaths within 30 days for conditions such as heart attack, heart failure, pneumonia and stroke.
Safety of care
1 better · 6 no different
Infections and complications acquired in the hospital.
Readmission
2 better · 6 no different · 2 worse
Unplanned returns to the hospital after discharge.

Source: Centers for Medicare & Medicaid Services, Hospital General Information. How star ratings work.

Emergency department

Emergency room times

221 min
Median time in the ER before leaving (OP-18b)
3.0%
Left before being seen (OP-22)
very high
Emergency department volume

Lower times are better. Reporting period ending September 2025. Source: CMS Timely and Effective Care. What these numbers mean.

Safety of care

Infections and sepsis care

  • MRSA bloodstream infectionsNo different · SIR 0.00
  • Catheter-associated urinary tract infections (CAUTI)No different · SIR 1.91
  • Clostridioides difficile (C. diff) infectionsBetter than national · SIR 0.17
  • Central line bloodstream infections (CLABSI)No different · SIR 1.17
  • Surgical site infections after colon surgeryNo different · SIR 1.31

60% of patients with severe sepsis or septic shock received all the recommended early care steps (SEP-1). Higher is better.

SIR is the standardized infection ratio: below 1 means fewer infections than predicted for a hospital like this one. Period ending September 2025. Source: CMS Healthcare-Associated Infections and Timely and Effective Care.

HCAHPS survey

What patients say

  • Patient survey star rating
  • Would definitely recommend78%
  • Rated the hospital 9 or 1075%
  • Completed surveys757

Survey period ending September 2025. Source: CMS HCAHPS Patient Survey.

Map

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42.25786, -87.86426

Within 25 miles

Nearby hospitals

Frequently asked questions

Where is Northwestern Lake Forest Hospital located?

Northwestern Lake Forest Hospital is at 1000 N Westmoreland Road, Lake Forest, IL 60045 in Lake County.

Does Northwestern Lake Forest Hospital have an emergency room?

Yes. Northwestern Lake Forest Hospital reports emergency services to Medicare, and patients spent a median of 221 minutes in its emergency department before leaving. In a life-threatening emergency, call 911.

What is the CMS star rating of Northwestern Lake Forest Hospital?

Northwestern Lake Forest Hospital has a CMS Overall Hospital Quality Star Rating of 5 out of 5. The rating combines measures of mortality, safety of care, readmission, patient experience and timely and effective care, compared with hospitals nationwide.

Is Northwestern Lake Forest Hospital a trauma center?

Yes. It is listed as a Level II trauma center in the HIFLD hospitals data, which is compiled from state trauma registries (source date December 2023). Trauma designations are renewed periodically, so confirm with the Illinois EMS or trauma program. In an emergency, call 911: paramedics take seriously injured patients to the right trauma center.

What is the phone number of Northwestern Lake Forest Hospital?

The main phone number on record with Medicare is (847) 234-5600.

Would patients recommend Northwestern Lake Forest Hospital?

In the most recent HCAHPS patient survey (757 completed surveys), 78% of patients said they would definitely recommend the hospital, and 75% rated it 9 or 10 out of 10.

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