facebook tracking Mercyhealth Hospital & Physician Clinic-Crystal La: 875 S Route 31 - Crystal Lake, IL

Mercyhealth Hospital & Physician Clinic-Crystal La, Crystal Lake, IL

875 S Route 31, Crystal Lake, IL 60014Mc Henry County

Acute care hospital 13 beds (Medicare cost report FY2025) Emergency room

Independent directory · data from CMS, not from this hospital

Mercyhealth Hospital & Physician Clinic-Crystal La is a non-profit acute care hospital in Crystal Lake, Illinois, with an emergency department. According to HospitalsInEachState.com's analysis of the July 2026 CMS release, patients treated and sent home spend a median of 1 hr 47 min in its emergency department, 1 hr 7 min shorter than the average across Illinois hospitals (2 hr 54 min).

Median ER visit 1 hr 47 min treated & sent home −67 min vs IL hospitals' avg
Medicare star ratingNot ratedReason below
Beds13Medicare cost report FY2025

CMS did not publish an overall star rating for this hospital; hospitals that report too few quality measures are not rated.

Source: CMS Care Compare, July 2026 releaseER figures are medians, not live waitsAbout the data

Visiting Mercyhealth Hospital & Physician Clinic-Crystal La

Address 875 S Route 31
Crystal Lake, IL 60014
County: Mc Henry
Directions Apple Maps Call (792) 220-5500
Emergency room Yes. For patients treated and sent home, the median ER visit here lasts 1 hr 47 min (average across IL hospitals: 2 hr 54 min). Medicare's median time in the ER for patients treated and sent home; not a live wait. ER times across IL
What to bring
  • Photo ID and your insurance, Medicare or Medicaid card
  • A list of your medicines, doses and allergies
  • Your doctor's name and phone number
  • A phone charger
Visiting hours and parking vary: call ahead.

Quick answers about Mercyhealth Hospital & Physician Clinic-Crystal La

How long is the ER wait at Mercyhealth Hospital & Physician Clinic-Crystal La?

CMS doesn't publish live wait times. Over the 12 months CMS reported, patients treated and sent home spent a median of 1 hr 47 min in the Mercyhealth Hospital & Physician Clinic-Crystal La emergency room (the average across Illinois hospitals is 2 hr 54 min). 0% of ER patients left before being seen. For tonight's wait, call (792) 220-5500. In an emergency, call 911.

What is the phone number for Mercyhealth Hospital & Physician Clinic-Crystal La?

The main phone number for Mercyhealth Hospital & Physician Clinic-Crystal La is (792) 220-5500, from Medicare's hospital records.

Call (792) 220-5500
What is the address of Mercyhealth Hospital & Physician Clinic-Crystal La?

Mercyhealth Hospital & Physician Clinic-Crystal La is at 875 S Route 31, Crystal Lake, IL 60014.

Directions (opens Google Maps)
Does Mercyhealth Hospital & Physician Clinic-Crystal La have an emergency room?

Yes. Mercyhealth Hospital & Physician Clinic-Crystal La has an emergency department, according to Medicare data.

Quality and performance

Centers for Medicare & Medicaid Services · data as of July 2026

Patients treated and sent home from the emergency department at Mercyhealth Hospital & Physician Clinic-Crystal La spend a median of 1 hour 47 minutes there. That is 1 hour 7 minutes shorter than the average across Illinois hospitals (2 hours 54 minutes).

Left before seen 0%
ER volume low
Type Acute Care
Ownership Non-profit

Source: CMS Hospital General Information and Timely & Effective Care. Wait times are a median over a past 12-month reporting period, not live data. Not affiliated with CMS or with Mercyhealth Hospital & Physician Clinic-Crystal La. For a medical emergency, call 911.

Compare ER waits across Illinois · How we source this data · Something wrong on this page? Tell us

Advertisement

What patients say

CMS patient survey (HCAHPS) · 88 completed surveys · patients discharged Oct 2024 – Sep 2025

78% would definitely recommend it (U.S. average 71%). 79% rated it 9 or 10 out of 10.

Would definitely recommend 78% U.S. 71% · IL 69%
Rated 9 or 10 of 10 79% U.S. 72% · IL 70%
Survey response rate 28% of patients surveyed
Nurse communicationDid nurses treat you with courtesy and respect, listen carefully and explain things clearly?
80% always · 4% sometimes or never · U.S. 80% always
Doctor communicationDid doctors treat you with courtesy and respect, listen carefully and explain things clearly?
84% always · 2% sometimes or never · U.S. 80% always
Communication about medicinesBefore giving you a new medicine, did staff tell you what it was for and its possible side effects?
67% always · 17% sometimes or never · U.S. 62% always
Discharge informationDid staff talk with you about help you would need at home and symptoms to watch for?
90% yes · 10% no · U.S. 86% yes
CleanlinessHow often were your room and bathroom kept clean?
87% always · 6% sometimes or never · U.S. 74% always
Quiet at nightHow often was the area around your room quiet at night?
71% always · 4% sometimes or never · U.S. 60% always
Overall hospital ratingUsing any number from 0 to 10, what number would you use to rate this hospital?
79% 9 or 10 · 8% 6 or lower · U.S. 72% 9 or 10
Would recommendWould you recommend this hospital to your friends and family?
78% definitely yes · 9% no · U.S. 71% definitely yes

The patient survey (HCAHPS) asks a random sample of adult patients about their recent hospital stay. CMS adjusts the results for the mix of patients and how the survey was done, so hospitals can be compared fairly. CMS gives a star rating only to hospitals with at least 100 completed surveys, so this hospital has answer percentages but no stars. These results come from fewer than 100 completed surveys, so CMS advises using them with caution. About the data.

Advertisement

Infections, complications and deaths

Centers for Medicare & Medicaid Services · compared with hospitals nationwide

Its rate of serious complications was same as national.

Serious complications

Serious complications (CMS PSI 90)Combines patient safety problems such as falls with fractures, bed sores, collapsed lungs, blood clots and infections after surgery. 1.00 is the national value; lower is better.
Same as national Ratio 0.99

Death rates within 30 days

Patients treated forThis hospitalU.S.
Hospital-wide, all conditions 4.0% 3.9%

Risk-adjusted rates. CMS has not published a statistical better/worse comparison for these death rates in the current release, so small differences from the U.S. rate may be chance.

Other complications

None of the other safety indicators CMS compares was statistically better or worse than national.

All 3 complication measures
MeasureThis hospitalU.S.CMS comparison
Pressure ulcers (bed sores)per 1,000 patients 0.62 0.63 Same as national
Falls in the hospital that caused a broken boneper 1,000 patients 0.27 0.27 Same as national
Collapsed lung caused by a medical procedureper 1,000 patients 0.21 0.21 Same as national

"Better" or "worse" means CMS found the difference from the national benchmark statistically significant; most hospitals are "no different". Infection results compare the infections a hospital reported with the number predicted for a hospital of its size and type (a ratio below 1 means fewer than predicted). Death and complication rates are risk-adjusted for how sick patients were. Each death rate counts deaths within 30 days of a hospital stay, pooled over one to three years of Medicare patients depending on the measure. About the data.

Health insurance at Mercyhealth Hospital & Physician Clinic-Crystal La

Original Medicare: Medicare-certified, so it can bill Original Medicare (Medicare number 140308). Medicare Advantage plans have their own networks, which this section does not cover.

Illinois runs its own exchange, Get Covered Illinois. Check its provider directory for Mercyhealth Hospital & Physician Clinic-Crystal La.

Is Mercyhealth Hospital & Physician Clinic-Crystal La in your plan?

Illinois runs its own health insurance marketplace, so plan networks there aren't in HealthCare.gov's data.

Check on Get Covered Illinois

Source: the insurers' 2027 machine-readable provider files listed in the CMS Marketplace public use files, loaded November 4, 2026, matched to hospitals by NPI from CMS Hospital Enrollments. How we match networks to hospitals Networks change; confirm with your insurer before you go.

Readmissions and return visits

Centers for Medicare & Medicaid Services · Medicare patients

On the 2 readmission and return-visit measures CMS could compare, Mercyhealth Hospital & Physician Clinic-Crystal La was no different from the national rate or its expected level.

Return trips after a stay or procedure

Hospital visits within 7 days of an outpatient colonoscopyUnplanned hospital visits per 1,000 colonoscopies.
Same as national 13.5 per 1,000 procedures · U.S. 13
Hospital visits after outpatient surgeryUnplanned visits within 7 days of same-day surgery, as a ratio to the number expected (1.00 = expected).
As expected 1.00 1.00 = expected · U.S. 1.00

Readmission rates count Medicare patients who were admitted to any acute-care hospital within 30 days of leaving this one, adjusted for how sick they were. "Better" or "worse" means CMS found the difference from the national rate statistically significant; most hospitals are "no different". Return-day and outpatient-surgery measures compare the hospital with what CMS expected for its own patients. The Readmissions Reduction Program ratios are shown as CMS publishes them; whether a hospital's payments are reduced depends on how its ratios compare with similar hospitals, so a ratio above 1.00 alone doesn't mean a penalty. About the data.

Timely and effective care

Centers for Medicare & Medicaid Services · all patients unless noted · Oct 2024 – Sep 2025

Mercyhealth Hospital & Physician Clinic-Crystal La's emergency department is classed by CMS as low volume.

MeasureThis hospitalU.S.*
Typical time in the ER before going homeMedian minutes from arrival to leaving, for ER patients sent home (not counting mental health patients or transfers). Lower is better. 383 patients. 107 min 162 min
Typical ER time for patients transferred to another facilityMedian minutes from arrival to leaving. Lower is better. 15 patients. 323 min 287 min
Patients who left the ER before being seenLower is better. 11,260 patients. 0% 2%
Health care workers vaccinated against fluHigher is better. 458 patients. 85% 78%
Discharged on two opioids, or an opioid and a benzodiazepinePatients sent home with prescriptions that raise the risk of overdose when combined. Lower is better. 124 patients. 13% 15%
Colonoscopy: right follow-up interval for average-risk patientsHigher is better. 81 patients. 98% 93%
Blood clot prevention givenHigher is better. 185 patients. 97% 90%*

CMS publishes these process-of-care measures without a better/worse verdict, so the U.S. figure is shown for context; small differences, or results based on few patients, may not mean much. *Median of all hospitals CMS reports, where CMS publishes no national figure. About the data.

Medicare spending and payment programs

Centers for Medicare & Medicaid Services

Hospital-acquired conditions · FY 2026
No penalty
Not in the worst-performing quarter on infections and patient-safety problems. 719 of 3,012 hospitals were penalized.
Medicare spending per patient
1.01
1% more than the national median per hospital stay (about $27,691 vs $27,417), counting Medicare spending from 3 days before admission to 30 days after discharge.

The Hospital-Acquired Condition Reduction Program cuts Medicare payments by 1% for the quarter of hospitals with the worst scores. The Hospital Value-Based Purchasing Program withholds a small share of every hospital's Medicare payments and pays it back according to the total performance score. A spending ratio of 1.00 equals the national median; spending reflects prices, the services patients received and care after discharge, not quality. Some hospitals, such as critical access, children's and cancer hospitals, are not part of these programs. About the data.

Care after a stay at Mercyhealth Hospital & Physician Clinic-Crystal La

Medicare-certified providers near this hospital, with their CMS ratings. A hospital discharge planner can make the referral.

Skilled nursing facilities nearby

Skilled nursing ratings and inspections at Nursing Homes In Each State

Dialysis centers nearby See more

Home health agencies nearby See more

Hospice care providers nearby See more

Source: CMS Care Compare. Distances are approximate.

Advertisement

Doctors at Mercyhealth Hospital & Physician Clinic-Crystal La

53 Medicare-enrolled doctors and other clinicians list this hospital as an affiliation, across 20 specialties.

See all 53 clinicians

Find doctors in Crystal Lake

Medicare-enrolled specialists with a practice in Crystal Lake, with addresses, phone numbers and the hospitals they work with.

Advertisement

What Medicare paid at Mercyhealth Hospital & Physician Clinic-Crystal La

Centers for Medicare & Medicaid Services · original Medicare patients · 2024

Average hospital charges and actual payments for the procedures Medicare patients most often had here, compared with the average for Illinois.

Outpatient services

ServiceServicesAvg billedAvg allowed
Level 1 Intraocular ProceduresAPC 5491 149 $13,044 $2,189
Level 2 Upper GI ProceduresAPC 5302 28 $15,379 $1,806
Level 4 Urology and Related ServicesAPC 5374 23 $30,980 $3,310
Comprehensive Observation ServicesAPC 8011 22 $19,056 $2,505
Level 3 Musculoskeletal ProceduresAPC 5113 19 $16,544 $2,944

Charges are the hospital's list prices; payments are what Medicare, the patient and any other insurer actually paid (for outpatient services, Medicare's allowed amount). Private insurance prices differ. "vs state" compares this hospital's average payment with the state average for the same stay. All procedure costs.

Size and finances

Medicare cost report · fiscal year ending Jun 2025

Beds
13
Reported to Medicare, FY2025
Employees
148
Full-time equivalent
Discharges
383
Inpatient stays a year
Patient revenue
$42.5 million
Net of discounts
Operating margin
-15.2%
On patient care
Bad debt
$3.9 million
Unpaid patient bills

As reported by the hospital to CMS; not audited. Operating margin is income from patient care divided by net patient revenue and leaves out investment income and donations. Compare Illinois hospital finances.

Who owns Mercyhealth Hospital & Physician Clinic-Crystal La

Medicare enrollment and ownership records (PECOS)

Medicare lists the hospital's legal name as Mercy Crystal Lake Hospital and Medical Center Inc, a non-profit organization, incorporated 2003.

Mercy Health Corporation Owns 5% or more indirectly · 100% · since 2015 Non-profit

131 doctors and other clinicians list Mercyhealth Hospital & Physician Clinic-Crystal La as a hospital affiliation in Medicare's clinician directory.

Organizations with 5% or more ownership (directly or through other companies), partnership interests or operational control, as the hospital reported them to Medicare. Records can lag behind recent sales. Individuals are not listed. Who owns America's hospitals.

The area around Mercyhealth Hospital & Physician Clinic-Crystal La

HRSA shortage designations and BLS pay data

Nurse pay: registered nurses in Illinois earn a median $95,990 a year. Healthcare salaries in Illinois.

Shortage areas are designated by the Health Resources and Services Administration where there are too few primary care, mental health or dental providers for the population; scores run from 0 to 25 for primary and mental health care and 0 to 26 for dental care, higher meaning greater need.

Healthcare pay in Illinois

Registered nurses across Illinois (all employers) earned a median of $95,990 a year (BLS, May 2025).Registered Nurse (RN) salary in IllinoisNurse Practitioner salary in IllinoisRespiratory Therapist salary in IllinoisHealthcare salaries in Illinois

Cite this data

Writing about Mercyhealth Hospital & Physician Clinic-Crystal La? You're welcome to quote these figures. They are free to use under CC BY 4.0: please credit HospitalsInEachState.com and link to this page.

Figures as of the July 2026 CMS release Updated automatically when CMS publishes new data Permanent link: hospitalsineachstate.com/hospitals/illinois/crystal-lake/mercyhealth-hospital-and-physician-clinic-crystal-la/875-s-route-31/

Advertisement