Source: CMS Care Compare, July 2026 releaseER figures are medians, not live waitsAbout the data
Visiting Union 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
Nearby hospitals
- 3.7mi North Shore Medical Center Salem, MA · Emergency room · median ER visit 4 hr 31 min Call North Shore Medical Center Directions to North Shore Medical Center (Google Maps) Details for North Shore Medical Center
- 5.1mi Melrosewakefield Healthcare Melrose, MA · Emergency room · median ER visit 3 hr 10 min Call Melrosewakefield Healthcare Directions to Melrosewakefield Healthcare (Google Maps) Details for Melrosewakefield Healthcare
- 6.7mi Hallmark Health System Malden, MA Call Hallmark Health System Directions to Hallmark Health System (Google Maps) Details for Hallmark Health System
Quick answers about Union Hospital
How long is the ER wait at Union 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 31 min in the Union Hospital emergency room (the average across Massachusetts hospitals is 3 hr 39 min). 7% of ER patients left before being seen. For tonight's wait, call (781) 581-9200. In an emergency, call 911.
What is the phone number for Union Hospital?
The main phone number for Union Hospital is (781) 581-9200, from Medicare's hospital records.
Call (781) 581-9200What is the address of Union Hospital?
Union Hospital is at 500 Lynnfield St, Lynn, MA 01904.
Directions (opens Google Maps)Does Union Hospital have an emergency room?
Yes. Union Hospital has an emergency department, according to Medicare data.
What is Union Hospital's Medicare star rating?
Union 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 Union Hospital spend a median of 4 hours 31 minutes there. That is 52 minutes longer than the average across Massachusetts hospitals (3 hours 39 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 Union 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 Union Hospital a 3-star patient experience rating out of 5. 67% would definitely recommend it (U.S. average 71%). 66% 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.
Nearby ERs with shorter visits
Infections, complications and deaths
Centers for Medicare & Medicaid Services · compared with hospitals nationwide
Of the 5 hospital-acquired infections CMS could compare, Union Hospital was better than the national benchmark on 2 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 | 11.9% | 11.9% |
| Heart failure patients | 9.1% | 11.1% |
| Pneumonia patients | 9.8% | 15.2% |
| Stroke patients | 10.1% | 11.9% |
| COPD patients | 5.9% | 8.6% |
| Hospital-wide, all conditions | 2.3% | 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 12 complication measures
| Measure | This hospital | U.S. | CMS comparison |
|---|---|---|---|
| Complications after hip or knee replacement% of patients | 3 | 4.1 | Not compared |
| Deaths among surgical patients with serious treatable complicationsper 1,000 patients | 134.38 | 173.3 | Same as national |
| Pressure ulcers (bed sores)per 1,000 patients | 0.25 | 0.63 | Same as national |
| Falls in the hospital that caused a broken boneper 1,000 patients | 0.28 | 0.27 | Same as national |
| Collapsed lung caused by a medical procedureper 1,000 patients | 0.26 | 0.21 | Same as national |
| Bleeding or blood clot under the skin after surgeryper 1,000 patients | 2.38 | 2.34 | Same as national |
| Kidney injury needing dialysis after surgeryper 1,000 patients | 1.45 | 1.67 | Same as national |
| Respiratory failure after surgeryper 1,000 patients | 7.39 | 9.42 | Same as national |
| Blood clots in the lungs or legs after surgeryper 1,000 patients | 3.41 | 3.52 | Same as national |
| Bloodstream infection (sepsis) after surgeryper 1,000 patients | 5.4 | 5.27 | Same as national |
| Surgical wound splitting openper 1,000 patients | 1.57 | 1.77 | Same as national |
| Accidental cuts or tears during abdominal surgeryper 1,000 patients | 1.15 | 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.
Health insurance at Union Hospital
Original Medicare: Medicare-certified, so it can bill Original Medicare (Medicare number 220035). Medicare Advantage plans have their own networks, which this section does not cover.
Massachusetts runs its own exchange, Massachusetts Health Connector. Check its provider directory for Union Hospital.
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 · Jul 2023 – Jun 2025
On the 4 readmission and return-visit measures CMS could compare, Union Hospital was no different from the national rate or its expected level.
Back in the hospital within 30 days
| After a stay for | This hospital | U.S. | CMS comparison |
|---|---|---|---|
| Heart attack | 15.6% | 14.4% | Not compared |
| Heart failure | 22% | 21.3% | Not compared |
| Pneumonia | 18.1% | 17.3% | Not compared |
| COPD (chronic lung disease) | 23.3% | 20% | Not compared |
| Hip or knee replacement | 6% | 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. 2 of 5 conditions are above 1.00.
| Condition | Ratio | Patients | Readmissions |
|---|---|---|---|
| Pneumonia | 1.092 | 1,012 | More than expected |
| COPD | 1.013 | 295 | More than expected |
| Heart attack | 0.984 | 175 | Fewer than expected |
| Heart failure | 0.975 | 1,191 | Fewer than expected |
| Hip or knee replacement | 0.894 | 259 | 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
Union 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. 146 patients. | 44% | 65% |
| Septic shock: full treatment within 3 hoursHigher is better. 66 patients. | 53% | 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. 34 patients. | 65% | 69% |
| Heart attack (STEMI): timely clot-busting or artery-opening careHigher is better. 25 patients. | 4% | 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. 373 patients. | 271 min | 162 min |
| Typical ER time for mental health patients sent homeMedian minutes from arrival to leaving. Lower is better. 21 patients. | 430 min | 257 min |
| Patients who left the ER before being seenLower is better. 78,429 patients. | 7% | 2% |
| Health care workers vaccinated against fluHigher is better. 6,214 patients. | 98% | 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. 3,863 patients. | 17% | 15% |
| Colonoscopy: right follow-up interval for average-risk patientsHigher is better. 97 patients. | 97% | 93% |
| Blood clot prevention givenHigher is better. 10,142 patients. | 94% | 90%* |
| Stroke: discharged on clot-prevention medicineHigher is better. 227 patients. | 99% | 98%* |
| Stroke: clot prevention started by day 2Higher is better. 220 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 | 70 |
| Patient experiencePatient survey results | 47 |
| SafetyHospital-acquired infections | 30 |
| Efficiency and costMedicare spending per patient | 50 |
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 Union Hospital
Medicare-certified providers near this hospital, with their CMS ratings. A hospital discharge planner can make the referral.
Skilled nursing facilities nearby
- 1.1mi Jeffrey & Susan Brudnick Center for Living Peabody, MA · 180 beds Medicare overall 5 of 5 stars · Short-stay quality 5 of 5
- 2.2mi Pilgrim Rehabilitation & Skilled Nursing Center Peabody, MA · 152 beds Medicare overall 4 of 5 stars · Short-stay quality 1 of 5
- 2.7mi Life Care Center of the North Shore Lynn, MA · 123 beds Medicare overall 5 of 5 stars · Short-stay quality 4 of 5
Skilled nursing ratings and inspections at Nursing Homes In Each State
Dialysis centers nearby See more
- 2.3mi FMC Peabody Dialysis CenterPeabody, MA
- 2.8mi FMC North Suburban Dialysis Center (BMA Essex County)Saugus, MA
- 5.2mi Fresenius Medical Care DanversDanvers, MA
Home health agencies nearby See more
- 0.8mi Progress HealthcareLynn, MA Not rated
- 0.8mi Seraphic Springs HealthcareLynn, MA Not rated
- 2.3mi Brooksby Village, INCPeabody, MA · 72% would recommend
Hospice care providers nearby See more
- 3.3mi All Care Hospice INCLynn, MA · 92% would recommend
- 5.2mi Beth Israel Lahey Health at HomeDanvers, MA · 85% would recommend
- 5.2mi Care Dimensions, INCDanvers, MA · 87% would recommend
Source: CMS Care Compare. Distances are approximate.
Inpatient psychiatric unit
CMS Inpatient psychiatric care Quality Reporting Program, data through March 2025 · unit CCN 220035
Union Hospital runs an inpatient psychiatric unit that reports its own results to Medicare. Follow-up within 7 days: 47% 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 Union Hospital
1,534 Medicare-enrolled doctors and other clinicians list this hospital as an affiliation, across 38 specialties.
Find doctors in Lynn
Medicare-enrolled specialists with a practice in Lynn, with addresses, phone numbers and the hospitals they work with.
What Medicare paid at Union 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 | 519 | $49,749 | $18,028 | −8% |
| Heart failure and shock with major complicationsDRG 291 | 422 | $30,803 | $11,855 | −9% |
| Respiratory infections and inflammations with major complicationsDRG 177 | 275 | $40,393 | $15,053 | −5% |
| Simple pneumonia and pleurisy with major complicationsDRG 193 | 157 | $34,200 | $12,274 | −3% |
| Esophagitis, gastroenteritis and miscellaneous digestive disorders without major complicationsDRG 392 | 152 | $18,951 | $7,557 | −5% |
| Kidney and urinary tract infections without major complicationsDRG 690 | 133 | $22,103 | $7,772 | −1% |
| Acute myocardial infarction, discharged alive with major complicationsDRG 280 | 123 | $45,573 | $14,659 | −9% |
| Coagulation disordersDRG 813 | 117 | $31,185 | $14,761 | −19% |
Outpatient services
| Service | Services | Avg billed | Avg allowed |
|---|---|---|---|
| Comprehensive Observation ServicesAPC 8011 | 1,104 | $12,444 | $2,923 |
| Level 2 Excision/Biopsy/Incision and DrainageAPC 5072 | 311 | $5,347 | $1,727 |
| Level 5 Musculoskeletal ProceduresAPC 5115 | 269 | $38,034 | $13,975 |
| Level 3 Vascular ProceduresAPC 5183 | 201 | $9,883 | $3,423 |
| Level 3 Urology and Related ServicesAPC 5373 | 191 | $9,075 | $2,187 |
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 Union Hospital
Medicare enrollment and ownership records (PECOS)
Medicare lists the hospital's legal name as North Shore Medical Center, Inc., a non-profit organization, incorporated 2004.
2,635 doctors and other clinicians list Union 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 Union Hospital
HRSA shortage designations and BLS pay data
Primary care: Parts of Essex are federally designated health professional shortage areas (4 designations). Highest shortage score 17.
Mental health: Parts of Essex are federally designated health professional shortage areas (1 designation). Highest shortage score 18.
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
Healthcare pay in Massachusetts
Registered nurses across Massachusetts (all employers) earned a median of $104,550 a year (BLS, May 2025).Registered Nurse (RN) salary in MassachusettsNurse Practitioner salary in MassachusettsRespiratory Therapist salary in MassachusettsHealthcare salaries in Massachusetts
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Cite this data
Writing about Union 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.