Source: CMS Care Compare, July 2026 releaseER figures are medians, not live waitsAbout the data
Visiting Massachusetts General Hospital
- 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
Official links: Website for Massachusetts General Hospital (opens the hospital's site)
Nearby hospitals
- <0.1mi The Shriners' Hospital for Children - Boston Boston, MA Call The Shriners' Hospital for Children - Boston Directions to The Shriners' Hospital for Children - Boston (Google Maps) Details for The Shriners' Hospital for Children - Boston
- 0.1mi Massachusetts Eye and Ear Infirmary Boston, MA · Emergency room · median ER visit 2 hr 54 min Call Massachusetts Eye and Ear Infirmary Directions to Massachusetts Eye and Ear Infirmary (Google Maps) Details for Massachusetts Eye and Ear Infirmary
- 0.9mi Tufts Medical Center Boston, MA · Emergency room · median ER visit 3 hr 28 min Call Tufts Medical Center Directions to Tufts Medical Center (Google Maps) Details for Tufts Medical Center
Quick answers about Massachusetts General Hospital
How long is the ER wait at Massachusetts General Hospital?
CMS doesn't publish live wait times. Over the 12 months CMS reported, patients treated and sent home spent a median of 4 hr 48 min in the Massachusetts General Hospital emergency room (the average across Massachusetts hospitals is 3 hr 40 min). 4% of ER patients left before being seen. For tonight's wait, check the hospital's website (opens the hospital's own site) or call (617) 726-2000. In an emergency, call 911.
What is the phone number for Massachusetts General Hospital?
The main phone number for Massachusetts General Hospital is (617) 726-2000, from Medicare's hospital records.
Call (617) 726-2000What is the address of Massachusetts General Hospital?
Massachusetts General Hospital is at 55 Fruit St, Boston, MA 02114.
Directions (opens Google Maps)Does Massachusetts General Hospital have an emergency room?
Yes. Massachusetts General Hospital has an emergency department, according to Medicare data.
What is Massachusetts General Hospital's Medicare star rating?
Massachusetts General Hospital has an overall rating of 5 out of 5 stars from the Centers for Medicare & Medicaid Services (CMS). Star ratings come from CMS quality and safety measures, not patient reviews.
Quality and performance
Centers for Medicare & Medicaid Services · data as of July 2026
Patients treated and sent home from the emergency department at Massachusetts General Hospital spend a median of 4 hours 48 minutes there. That is 1 hour 8 minutes longer than the average across Massachusetts hospitals (3 hours 40 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 Massachusetts General Hospital. For a medical emergency, call 911.
Compare ER waits across Massachusetts · How Massachusetts hospitals rank on star ratings · Other birthing-friendly hospitals in Massachusetts · How we source this data · Something wrong on this page? Tell us
What patients say
CMS patient survey (HCAHPS) · 593 completed surveys · patients discharged Oct 2024 – Sep 2025
Patients gave Massachusetts General Hospital a 4-star patient experience rating out of 5. 85% would definitely recommend it (U.S. average 71%). 78% 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. About the data.
Compare Massachusetts General Hospital
Infections, complications and deaths
Centers for Medicare & Medicaid Services · compared with hospitals nationwide
Of the 6 hospital-acquired infections CMS could compare, Massachusetts General Hospital was better than the national benchmark on 3 and worse on 0. Its rate of serious complications was same as national.
Hospital-acquired infections
Serious complications
Death rates within 30 days
| Patients treated for | This hospital | U.S. |
|---|---|---|
| Heart attack patients | 9.3% | 11.9% |
| Heart failure patients | 6.8% | 11.1% |
| Pneumonia patients | 12.9% | 15.2% |
| Stroke patients | 10.1% | 11.9% |
| COPD patients | 5.3% | 8.6% |
| Coronary bypass (CABG) surgery patients | 1.5% | 2.4% |
| Hospital-wide, all conditions | 1.8% | 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
All 12 complication measures
| Measure | This hospital | U.S. | CMS comparison |
|---|---|---|---|
| Complications after hip or knee replacement% of patients | 5.4 | 4.1 | Not compared |
| Deaths among surgical patients with serious treatable complicationsper 1,000 patients | 190.21 | 173.3 | Same as national |
| Pressure ulcers (bed sores)per 1,000 patients | 0.52 | 0.63 | Same as national |
| Falls in the hospital that caused a broken boneper 1,000 patients | 0.25 | 0.27 | Same as national |
| Collapsed lung caused by a medical procedureper 1,000 patients | 0.24 | 0.21 | Same as national |
| Bleeding or blood clot under the skin after surgeryper 1,000 patients | 1.51 | 2.34 | Better than national |
| Kidney injury needing dialysis after surgeryper 1,000 patients | 1.34 | 1.67 | Same as national |
| Respiratory failure after surgeryper 1,000 patients | 7.3 | 9.42 | Better than national |
| Blood clots in the lungs or legs after surgeryper 1,000 patients | 4.43 | 3.52 | Same as national |
| Bloodstream infection (sepsis) after surgeryper 1,000 patients | 4.13 | 5.27 | Same as national |
| Surgical wound splitting openper 1,000 patients | 1.47 | 1.77 | Same as national |
| Accidental cuts or tears during abdominal surgeryper 1,000 patients | 0.51 | 1.06 | 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), for Oct 2024 – Sep 2025. 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.
Readmissions and return visits
Centers for Medicare & Medicaid Services · Medicare patients · Jul 2023 – Jun 2025
Of the 4 readmission and return-visit measures CMS could compare, Massachusetts General Hospital was better on 3 and worse on 0 (than the national rate, or than expected for its patients).
Back in the hospital within 30 days
| After a stay for | This hospital | U.S. | CMS comparison |
|---|---|---|---|
| Heart attack | 13.5% | 14.4% | Not compared |
| Heart failure | 19.7% | 21.3% | Not compared |
| Pneumonia | 16.9% | 17.3% | Not compared |
| COPD (chronic lung disease) | 19.2% | 20% | Not compared |
| Heart bypass surgery (CABG) | 8.8% | 11% | Not compared |
| Hip or knee replacement | 5.9% | 5.8% | Not compared |
Return trips after a stay or procedure
Medicare's readmission program
Excess readmission ratio: this hospital's predicted readmissions divided by the number expected for a typical hospital with the same patients. Above 1.00 means more readmissions than expected.
| Condition | Ratio | Patients | Readmissions |
|---|---|---|---|
| COPD | 0.995 | 371 | Fewer than expected |
| Heart attack | 0.988 | 600 | Fewer than expected |
| Heart failure | 0.915 | 1,758 | Fewer than expected |
| Pneumonia | 0.913 | 1,186 | Fewer than expected |
| Hip or knee replacement | 0.902 | – | Fewer than expected |
| Heart bypass surgery | 0.786 | 354 | Fewer than expected |
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
Massachusetts General Hospital's emergency department is classed by CMS as very high volume.
| Measure | This hospital | U.S.* |
|---|---|---|
| Sepsis: got all recommended early treatmentPatients with severe sepsis or septic shock who received every step of the recommended early care bundle. Higher is better. 130 patients. | 49% | 65% |
| Septic shock: full treatment within 3 hoursHigher is better. 54 patients. | 61% | 73% |
| Stroke: brain scan read within 45 minutes of ER arrivalPatients arriving with stroke symptoms whose head CT or MRI was interpreted within 45 minutes. Higher is better. 11 patients. | 27% | 69% |
| Heart attack (STEMI): timely clot-busting or artery-opening careHigher is better. 48 patients. | 0% | 53%* |
| 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. 353 patients. | 288 min | 162 min |
| Typical ER time for mental health patients sent homeMedian minutes from arrival to leaving. Lower is better. 38 patients. | 78 min | 257 min |
| Patients who left the ER before being seenLower is better. 119,116 patients. | 4% | 2% |
| Health care workers vaccinated against fluHigher is better. 35,546 patients. | 97% | 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. 12,254 patients. | 21% | 15% |
| Colonoscopy: right follow-up interval for average-risk patientsHigher is better. 120 patients. | 91% | 93% |
| Blood clot prevention givenHigher is better. 25,433 patients. | 87% | 90%* |
| Stroke: discharged on clot-prevention medicineHigher is better. 544 patients. | 99% | 98%* |
| Stroke: clot prevention started by day 2Higher is better. 504 patients. | 96% | 94%* |
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.
Maternity care
Centers for Medicare & Medicaid Services · reported by the hospital · Jan 2024 – Dec 2024
Maternity measures are reported by hospitals that deliver babies. The U.S. figure is the median of the hospitals CMS reports, not a CMS verdict. About the data.
Medicare spending and payment programs
Centers for Medicare & Medicaid Services
Value-based purchasing scores by area
| Area | Score (out of 100) |
|---|---|
| Clinical outcomesDeath rates and complications | 78.3 |
| Patient experiencePatient survey results | 69 |
| SafetyHospital-acquired infections | 30 |
| Efficiency and costMedicare spending per patient | 10 |
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 Massachusetts General Hospital
Medicare-certified providers near this hospital, with their CMS ratings. A hospital discharge planner can make the referral.
Skilled nursing facilities nearby
- 0.7mi North End Rehabilitation and Healthcare Center Boston, MA · 100 beds Medicare overall 2 of 5 stars · Short-stay quality 5 of 5
- 2.2mi Cambridge Rehabilitation & Nursing Center Cambridge, MA · 83 beds Medicare overall 4 of 5 stars · Short-stay quality 3 of 5
- 2.3mi Leonard Florence Center for Living Chelsea, MA · 100 beds Medicare overall 5 of 5 stars · Short-stay quality 5 of 5
Skilled nursing ratings and inspections at Nursing Homes In Each State
Dialysis centers nearby See more
- <0.1mi Massachusetts General Hospital - DialysisBoston, MA Not rated
- 0.9mi Dialysis Clinic, Inc. (DCI Boston)Boston, MA
- 1.7mi DaVita Boston DialysisBoston, MA
Home health agencies nearby See more
- 2.1mi Suburban Home Health Care, INCBoston, MA · 81% would recommend
- 2.8mi Ez Healthcare of Boston Group INCRoxbury, MA Not rated
- 2.8mi Kind Home HealthcareRoxbury, MA Not rated
Hospice care providers nearby See more
- 1.2mi Beacon Hospice, an Amedisys CompanyCharlestown, MA · 84% would recommend
- 3.0mi Legacy Lifecare Hospice and Palliative CareChelsea, MA · 72% would recommend Not rated
- 3.1mi Longwood HospiceBrookline, MA Not rated
Source: CMS Care Compare. Distances are approximate.
Inpatient psychiatric unit
CMS Inpatient psychiatric care Quality Reporting Program, data through March 2025 · unit CCN 220071
Massachusetts General Hospital runs an inpatient psychiatric unit that reports its own results to Medicare. Follow-up within 7 days: 66% here, against 37% nationally. Where CMS compares facilities statistically, this one is no different from the national rate.
After discharge
During the stay
Source: CMS Inpatient psychiatric care Quality Reporting Program (Provider Data Catalog). Better/worse labels appear only where CMS itself compared the facility with the national rate; other figures are shown next to the national figure for context. If you or someone you know is in crisis, call or text 988 (Suicide and Crisis Lifeline) or call 911.
Doctors at Massachusetts General Hospital
3,420 Medicare-enrolled doctors and other clinicians list this hospital as an affiliation, across 39 specialties.
Find doctors in Boston
Medicare-enrolled specialists with a practice in Boston, with addresses, phone numbers and the hospitals they work with.
What Medicare paid at Massachusetts General Hospital
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 Massachusetts.
Hospital stays
| Stay | Stays | Avg billed | Avg payment (Medicare + patient) | vs state |
|---|---|---|---|---|
| Septicemia or severe sepsis without ventilator >96 hours with major complicationsDRG 871 | 640 | $107,566 | $26,691 | +37% |
| Heart failure and shock with major complicationsDRG 291 | 466 | $78,997 | $18,760 | +44% |
| Respiratory infections and inflammations with major complicationsDRG 177 | 329 | $89,121 | $22,336 | +41% |
| Cardiac valve and other major cardiothoracic procedures without cardiac catheterizationDRG 219 | 263 | $337,937 | $95,850 | +3% |
| Percutaneous and other intracardiac procedures without major complicationsDRG 274 | 256 | $98,766 | $36,196 | +3% |
| Circulatory disorders except AMI, with cardiac catheterization with major complicationsDRG 286 | 200 | $152,627 | $32,104 | +12% |
| Endovascular cardiac valve replacement and supplement procedures with major complicationsDRG 266 | 196 | $245,368 | $74,300 | +2% |
| Craniotomy and endovascular intracranial procedures with major complicationsDRG 025 | 192 | $169,716 | $48,963 | −6% |
Outpatient services
| Service | Services | Avg billed | Avg allowed |
|---|---|---|---|
| Comprehensive Observation ServicesAPC 8011 | 2,507 | $19,776 | $2,927 |
| Level 2 Excision/Biopsy/Incision and DrainageAPC 5072 | 1,339 | $8,054 | $1,725 |
| Level 2 Upper GI ProceduresAPC 5302 | 846 | $8,210 | $2,028 |
| Level 3 Electrophysiologic ProceduresAPC 5213 | 760 | $108,829 | $25,280 |
| Level 4 Musculoskeletal ProceduresAPC 5114 | 650 | $43,344 | $7,608 |
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 Sep 2024
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 Massachusetts hospital finances.
Who owns Massachusetts General Hospital
Medicare enrollment and ownership records (PECOS)
Medicare lists the hospital's legal name as The General Hospital Corporation, a non-profit organization, incorporated 1979.
5,727 doctors and other clinicians list Massachusetts General Hospital 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 Massachusetts General Hospital
HRSA shortage designations and BLS pay data
Primary care: Parts of Suffolk are federally designated health professional shortage areas (2 designations). Highest shortage score 17.
Mental health: Parts of Suffolk are federally designated health professional shortage areas (1 designation). Highest shortage score 18.
Dental: Parts of Suffolk are federally designated health professional shortage areas (6 designations). Highest shortage score 15.
Nurse pay: registered nurses in Massachusetts earn a median $104,550 a year. Healthcare salaries in Massachusetts.
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. Massachusetts shortage areas
Closest other hospitals
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Cite this data
Writing about Massachusetts General Hospital? 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.