CMS Hospital Quality
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Acute Care HospitalsEmergency Services

MASSACHUSETTS EYE AND EAR INFIRMARY -

243 CHARLES STREET, BOSTON, MA 02114

CMS Overall Rating
Not rated
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About MASSACHUSETTS EYE AND EAR INFIRMARY -

Ownership
Voluntary non-profit - Private
Emergency Services
Yes
CMS Certification Number
220075

Acute care hospitals treat patients with serious, short-term medical conditions requiring immediate care. These are the most common type of hospital in the US.

Why doesn't this hospital have a CMS star rating?CMS only publishes an overall star rating when a hospital reports enough measures — at least three measures in at least three of the five measure groups, one of which must be mortality or safety of care. This hospital did not meet that threshold in the current data release. Not rated does not mean poor quality.

Patient Experience (HCAHPS Survey)

Based on standardized surveys sent to random patients after discharge

Mortality & Outcomes

30-day mortality rates — percentage of patients who died within 30 days of admission

Infection Control

Standardized Infection Ratio (SIR) — below 1.0 is better than the national benchmark

CLABSI Rate
N/A

Central line-associated bloodstream infection rate. A number below 1.0 means fewer infections than the national average — better than expected.

CAUTI Rate
N/A

Catheter-associated urinary tract infection rate. SIR below 1.0 = better than national benchmark. Important if you'll be in the ICU.

MRSA Rate
N/A

MRSA bloodstream infection rate. MRSA is a drug-resistant bacteria — an SIR below 1.0 means this hospital has fewer cases than expected nationally.

C. diff Rate
0.53
✓ At or below benchmark

Clostridioides difficile (C. diff) infection rate. This gut bacteria can cause severe diarrhea — SIR below 1.0 is better than the national benchmark.

30-Day Readmission Rates

Lower readmission rates indicate better discharge planning and post-hospital care

Timely & Effective Care

How consistently this hospital follows proven care processes, compared with the US average

ER Median Visit Time
168 min
▼ Worse than US average (157.08 min)

Median time patients spent in the emergency department from arrival until they left, excluding patients transferred to another facility or psychiatric patients. Across US hospitals the typical (median) time is about 2.5 hours.

Left Before Seen Rate
3%
▼ Worse than US average (1.68%)

Percentage of ER patients who left before being evaluated by a provider. Lower is better — a high rate suggests the ER is overcrowded or understaffed.

Staff Flu Vaccination Rate
98%
▲ Better than US average (74.5%)

Percentage of healthcare workers who received the influenza vaccine. Vaccinated staff protect vulnerable patients from flu transmission during hospitalization.

Blood Clot Prevention Rate
93%
▲ Better than US average (82.18%)

Percentage of inpatients who received recommended blood clot prevention (VTE prophylaxis). Blood clots in hospitalized patients are one of the most common preventable causes of death.

Concurrent Opioid Prescribing
16%
▼ Worse than US average (15.02%)

Percentage of patients discharged with prescriptions for two or more opioids, or an opioid plus a benzodiazepine, at the same time. Lower is better — combining these drugs raises the risk of overdose.

Medicare Payment Estimates

What Medicare pays this hospital for common procedures vs the national average

Medicare payment amounts are risk-adjusted averages. Actual patient costs depend on insurance plan, deductibles, and other factors.

Check Your Insurance Coverage

Before scheduling care at MASSACHUSETTS EYE AND EAR INFIRMARY -, verify it is in your insurance network. Out-of-network care can result in significantly higher costs.

Check Coverage on Healthcare.gov →

Nearby Hospitals

Other hospitals in BOSTON and nearby ZIP codes in Massachusetts

MASSACHUSETTS GENERAL HOSPITAL
BOSTON, MA 02114
★★★★★5/5
THE SHRINERS' HOSPITAL FOR CHILDREN - BOSTON
BOSTON, MA 02114
Not rated
BRIGHAM AND WOMEN'S HOSPITAL
BOSTON, MA 02115
★★★★★5/5
BOSTON CHILDREN'S HOSPITAL
BOSTON, MA 02115
Not rated
TUFTS MEDICAL CENTER
BOSTON, MA 02111
★★★★★2/5
BOSTON MEDICAL CENTER
BOSTON, MA 02118
★★★★★3/5

Other Acute Care Hospitals in Massachusetts

55 acute care hospitals in Massachusetts report to CMS — top rated shown first

See all 55 acute care hospitals in Massachusetts →

Frequently Asked Questions

What is an acute care hospital?▼
Acute care hospitals treat patients with serious illnesses or injuries that require immediate, short-term care. Most general hospitals fall into this category.
What does the CMS star rating mean?▼
CMS rates hospitals on a 1–5 star scale based on five quality groups: mortality, safety, readmissions, patient experience, and timely care. Higher stars mean better performance across these measures.
Is a higher star rating always better?▼
Generally yes, but consider your specific needs. A 3-star hospital might excel in cardiac care while scoring lower in other areas. Look at individual metrics relevant to your procedure.
How often is this data updated?▼
CMS updates hospital quality data quarterly (January, April, July, October). Overall star ratings are updated annually, usually in August.
What is HCAHPS?▼
HCAHPS (Hospital Consumer Assessment of Healthcare Providers and Systems) is a standardized patient satisfaction survey administered to random samples of hospital patients. Results reflect real patient experiences.
How do I read the infection rates?▼
Infection rates are shown as Standardized Infection Ratios (SIR). A SIR below 1.0 means fewer infections than nationally expected. A SIR of 0.5 means the hospital has half the expected infection rate — significantly better.
Does a lower star rating mean the hospital is unsafe?▼
Not necessarily. Lower-rated hospitals often serve sicker, more complex patient populations that make outcomes harder to achieve. Consider the full picture and consult your doctor.
Are there other hospitals in BOSTON?▼
Yes — there are 11 other hospitals in BOSTON, MA in the CMS database. Compare all hospitals in BOSTON to find the best fit for your care needs.

Data source: Centers for Medicare & Medicaid Services (data.cms.gov). Updated quarterly. CMS data loaded: June 2026.