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
Crystal Lake, IL 60014
County: Mc Henry Directions Apple Maps Call (792) 220-5500
- 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
Nearby hospitals
- 5.9mi Advocate Good Shepherd Hospital Barrington, IL · Emergency room · median ER visit 3 hr 14 min Call Advocate Good Shepherd Hospital Directions to Advocate Good Shepherd Hospital (Google Maps) Details for Advocate Good Shepherd Hospital
- 7.0mi Northwestern Medicine McHenry McHenry, IL · Emergency room · median ER visit 3 hr 14 min Call Northwestern Medicine McHenry Directions to Northwestern Medicine McHenry (Google Maps) Details for Northwestern Medicine McHenry
- 10mi Sherman Hospital Elgin, IL · Emergency room · median ER visit 3 hr 13 min Call Sherman Hospital Directions to Sherman Hospital (Google Maps) Details for Sherman Hospital
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) 220-5500What 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).
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
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.
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.
Infections, complications and deaths
Centers for Medicare & Medicaid Services · compared with hospitals nationwide
Its rate of serious complications was same as national.
Serious complications
Death rates within 30 days
| Patients treated for | This hospital | U.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
| Measure | This hospital | U.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.
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
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.
| Measure | This hospital | U.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
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
- 3.5mi Fair Oaks Health Care Center Crystal Lake, IL · 51 beds Medicare overall 4 of 5 stars · Short-stay quality 3 of 5
- 3.5mi The Pearl of Crystal Lake Crystal Lake, IL · 97 beds Medicare overall 5 of 5 stars · Short-stay quality 5 of 5
- 4.4mi Crystal Pines Rehab & HCC Crystal Lake, IL · 110 beds Medicare overall 2 of 5 stars · Short-stay quality 2 of 5 Abuse citation (CMS)
Skilled nursing ratings and inspections at Nursing Homes In Each State
Dialysis centers nearby See more
- 2.5mi Ara - Crystal Lake Dialysis CenterCrystal Lake, IL
- 2.5mi DaVita Crystal Springs DialysisCrystal Lake, IL
- 4.1mi Home Dialysis Services - ElginCrystal Lake, IL Not rated
Home health agencies nearby See more
- 2.1mi Northwest Home Health & RehabLake in the Hills, IL · 70% would recommend
- 2.5mi Bowes in-Home Care, INCCrystal Lake, IL · 70% would recommend
- 2.5mi One Home Health Agency, LtdCrystal Lake, IL · 76% would recommend
Hospice care providers nearby See more
- 7.9mi Journeycare - BarringtonBarrington, IL · 88% would recommend
- 14mi Five Star Hospice and Palliative CareHoffman Estates, IL Not rated
- 15mi Lifechoice Hospice and Palliative CarePalatine, IL · 85% would recommend
Source: CMS Care Compare. Distances are approximate.
Doctors at Mercyhealth Hospital & Physician Clinic-Crystal La
53 Medicare-enrolled doctors and other clinicians list this hospital as an affiliation, across 20 specialties.
Find doctors in Crystal Lake
Medicare-enrolled specialists with a practice in Crystal Lake, with addresses, phone numbers and the hospitals they work with.
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
| Service | Services | Avg billed | Avg 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
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.
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.
Closest other hospitals
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.