Source: CMS Care Compare, October 2026 releaseER figures are medians, not live waitsAbout the data
Visiting Overlook 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 Overlook Hospital (opens the hospital's site)
Nearby hospitals
- 0.5mi Summit Oaks Hospital Summit, NJ Call Summit Oaks Hospital Directions to Summit Oaks Hospital (Google Maps) Details for Summit Oaks Hospital
- 3.0mi Children's Specialized Hospital Mountainside, NJ Call Children's Specialized Hospital Directions to Children's Specialized Hospital (Google Maps) Details for Children's Specialized Hospital
- 4.3mi Saint Barnabas Medical Center Livingston, NJ · Emergency room · median ER visit 2 hr 8 min Call Saint Barnabas Medical Center Directions to Saint Barnabas Medical Center (Google Maps) Details for Saint Barnabas Medical Center
Quick answers about Overlook Hospital
How long is the ER wait at Overlook Hospital?
CMS doesn't publish live wait times. Over the 12 months CMS reported, patients treated and sent home spent a median of 3 hr 8 min in the Overlook Hospital emergency room (the average across New Jersey hospitals is 3 hr 7 min). 1% of ER patients left before being seen. For tonight's wait, check the hospital's website (opens the hospital's own site) or call (908) 522-2000. In an emergency, call 911.
What is the phone number for Overlook Hospital?
The main phone number for Overlook Hospital is (908) 522-2000, from Medicare's hospital records.
Call (908) 522-2000What is the address of Overlook Hospital?
Overlook Hospital is at 99 Beauvoir Ave, Summit, NJ 07901.
Directions (opens Google Maps)Does Overlook Hospital have an emergency room?
Yes. Overlook Hospital has an emergency department, according to Medicare data.
What is Overlook Hospital's Medicare star rating?
Overlook 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 October 2026
Patients treated and sent home from the emergency department at Overlook Hospital spend a median of 3 hours 8 minutes there. That is about the same as the average across New Jersey hospitals (3 hours 7 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 Overlook Hospital. For a medical emergency, call 911.
Compare ER waits across New Jersey · How New Jersey hospitals rank on star ratings · Other birthing-friendly hospitals in New Jersey · How we source this data · Something wrong on this page? Tell us
What patients say
CMS patient survey (HCAHPS) · 3,341 completed surveys · patients discharged Jan 2025 – Dec 2025
Patients gave Overlook Hospital a 3-star patient experience rating out of 5. 74% would definitely recommend it (U.S. average 71%). 71% 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 6 hospital-acquired infections CMS could compare, Overlook Hospital was better than the national benchmark on 1 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 | 10.1% | 11.9% |
| Heart failure patients | 10.2% | 11.1% |
| Pneumonia patients | 14.1% | 15.2% |
| Stroke patients | 8.3% | 11.9% |
| COPD patients | 6.1% | 8.6% |
| Hospital-wide, all conditions | 2.4% | 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 11 complication measures
| Measure | This hospital | U.S. | CMS comparison |
|---|---|---|---|
| Complications after hip or knee replacement% of patients | 3.9 | 4.1 | Not compared |
| Pressure ulcers (bed sores)per 1,000 patients | 0.25 | 0.55 | Same as national |
| Falls in the hospital that caused a broken boneper 1,000 patients | 0.22 | 0.24 | Same as national |
| Collapsed lung caused by a medical procedureper 1,000 patients | 0.23 | 0.18 | Same as national |
| Bleeding or blood clot under the skin after surgeryper 1,000 patients | 2.65 | 2.25 | Same as national |
| Kidney injury needing dialysis after surgeryper 1,000 patients | 1.24 | 1.56 | Same as national |
| Respiratory failure after surgeryper 1,000 patients | 3.92 | 8.15 | Same as national |
| Blood clots in the lungs or legs after surgeryper 1,000 patients | 3.48 | 3.31 | Same as national |
| Bloodstream infection (sepsis) after surgeryper 1,000 patients | 4.33 | 4.89 | Same as national |
| Surgical wound splitting openper 1,000 patients | 1.4 | 1.7 | Same as national |
| Accidental cuts or tears during abdominal surgeryper 1,000 patients | 0.85 | 1.04 | 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 Jan 2025 – Dec 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 Overlook Hospital
Original Medicare: Medicare-certified, so it can bill Original Medicare (Medicare number 310051). Medicare Advantage plans have their own networks, which this section does not cover.
New Jersey runs its own exchange, Get Covered NJ. Check its provider directory for Overlook 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 2024 – Jun 2025
On the 4 readmission and return-visit measures CMS could compare, Overlook 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 |
|---|---|---|---|
| All conditions (hospital-wide)Medicare patients back in any hospital within 30 days of leaving. | 15.5% | 16.2% | Not compared |
| Heart attack | 14% | 14.4% | Not compared |
| Heart failure | 19.9% | 21.3% | Not compared |
| Pneumonia | 16.3% | 17.3% | Not compared |
| COPD (chronic lung disease) | 21.5% | 20% | Not compared |
| Hip or knee replacement | 5.4% | 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 |
|---|---|---|---|
| Heart attack | 0.989 | 189 | Fewer than expected |
| COPD | 0.945 | 185 | Fewer than expected |
| Pneumonia | 0.887 | 835 | Fewer than expected |
| Heart failure | 0.840 | 759 | Fewer than expected |
| Hip or knee replacement | 0.833 | – | 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 · Jan 2025 – Dec 2025
Overlook 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. 158 patients. | 63% | 66% |
| Septic shock: full treatment within 3 hoursHigher is better. 72 patients. | 89% | 75% |
| Heart attack (STEMI): timely clot-busting or artery-opening careHigher is better. 42 patients. | 48% | 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. 391 patients. | 188 min | 162 min |
| Patients who left the ER before being seenLower is better. 108,737 patients. | 1% | 2% |
| Health care workers vaccinated against fluHigher is better. 5,392 patients. | 96% | 77% |
| 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. 4,651 patients. | 20% | 16% |
| Colonoscopy: right follow-up interval for average-risk patientsHigher is better. 444 patients. | 100% | 93% |
| Blood clot prevention given in intensive careHigher is better. 2,108 patients. | 98% | 97%* |
| Stroke with atrial fibrillation: discharged on a blood thinnerHigher is better. 154 patients. | 84% | 77%* |
| Stroke: clot prevention started by day 2Higher is better. 456 patients. | 93% | 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 2025 – Dec 2025
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 | 40 |
| Patient experiencePatient survey results | 22 |
| SafetyHospital-acquired infections | 36.7 |
| Efficiency and costMedicare spending per patient | 0 |
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 Overlook Hospital
Medicare-certified providers near this hospital, with their CMS ratings. A hospital discharge planner can make the referral.
Skilled nursing facilities nearby
- 2.4mi Mountainside Skilled Nursing and Rehab Mountainside, NJ · 151 beds Medicare overall 3 of 5 stars · Short-stay quality 4 of 5 Abuse citation (CMS)
- 2.7mi Spring Grove Rehabilitation and Healthcare Center New Providence, NJ · 106 beds Medicare overall 3 of 5 stars · Short-stay quality 5 of 5
- 3.0mi Childrens Specialized Hospital Mountainside Mountainside, NJ · 64 beds Medicare overall 5 of 5 stars · Located in a hospital
Skilled nursing ratings and inspections at Nursing Homes In Each State
Dialysis centers nearby See more
- 2.2mi DaVita Summit DialysisMountainside, NJ
- 2.8mi DaVita Millburn DialysisMillburn, NJ
- 4.2mi FMC KenilworthKenilworth, NJ
Home health agencies nearby See more
- 4.6mi Bayada Home Health Care, INC.Cranford, NJ · 76% would recommend
- 5.2mi Bayada Home Health Care, INCLivingston, NJ · 78% would recommend
- 6.8mi Barnabas Health Home Care and HospiceWest Orange, NJ · 72% would recommend
Hospice care providers nearby See more
- 4.6mi Homeside HospiceCranford, NJ · 86% would recommend
- 4.6mi Ascend HospiceCranford, NJ · 77% would recommend
- 4.9mi Lilycare of New JerseyFlorham Park, NJ 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 310051
Overlook Hospital runs an inpatient psychiatric unit that reports its own results to Medicare. Follow-up within 7 days: 53% 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 Overlook Hospital
982 Medicare-enrolled doctors and other clinicians list this hospital as an affiliation, across 33 specialties.
Find doctors in Summit
Medicare-enrolled specialists with a practice in Summit, with addresses, phone numbers and the hospitals they work with.
Federal rules require hospitals to publish their prices, including the rates they've negotiated with each insurer and their cash prices. Overlook Hospital lists them here:
From the hospital's price transparency file (www.atlantichealth.org/cms-hpt.txt), checked Nov 7, 2026. For an estimate of what you'll pay, ask the hospital or your insurer; Medicare's averages are on our procedure cost pages.
What Medicare paid at Overlook 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 New Jersey.
Hospital stays
| Stay | Stays | Avg billed | Avg payment (Medicare + patient) | vs state |
|---|---|---|---|---|
| Septicemia or severe sepsis without ventilator >96 hours with major complicationsDRG 871 | 360 | $127,698 | $20,090 | +4% |
| Heart failure and shock with major complicationsDRG 291 | 275 | $81,221 | $13,446 | +5% |
| Respiratory infections and inflammations with major complicationsDRG 177 | 201 | $95,522 | $16,806 | +5% |
| Simple pneumonia and pleurisy with major complicationsDRG 193 | 170 | $83,373 | $14,141 | +8% |
| Kidney and urinary tract infections with major complicationsDRG 689 | 105 | $72,563 | $12,180 | +5% |
| Intracranial hemorrhage or cerebral infarction with major complicationsDRG 064 | 91 | $129,592 | $20,665 | +4% |
| Esophagitis, gastroenteritis and miscellaneous digestive disorders without major complicationsDRG 392 | 90 | $59,406 | $8,637 | +10% |
| Kidney and urinary tract infections without major complicationsDRG 690 | 90 | $57,154 | $8,909 | +10% |
Outpatient services
| Service | Services | Avg billed | Avg allowed |
|---|---|---|---|
| Comprehensive Observation ServicesAPC 8011 | 843 | $31,224 | $3,045 |
| Level 5 Musculoskeletal ProceduresAPC 5115 | 386 | $67,050 | $14,716 |
| Level 2 Upper GI ProceduresAPC 5302 | 381 | $15,969 | $2,114 |
| Level 2 Excision/Biopsy/Incision and DrainageAPC 5072 | 299 | $13,693 | $1,788 |
| Level 4 Musculoskeletal ProceduresAPC 5114 | 174 | $40,978 | $7,755 |
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 Dec 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 New Jersey hospital finances.
Who owns Overlook Hospital
Medicare enrollment and ownership records (PECOS)
Medicare lists the hospital's legal name as Ahs Hospital Corp, a non-profit organization.
1,494 doctors and other clinicians list Overlook 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 Overlook Hospital
HRSA shortage designations and BLS pay data
Primary care: Parts of Union are federally designated health professional shortage areas (1 designation). Highest shortage score 13.
Mental health: Parts of Union are federally designated health professional shortage areas (1 designation). Highest shortage score 13.
Nurse pay: registered nurses in New Jersey earn a median $106,500 a year. Healthcare salaries in New Jersey.
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. New Jersey shortage areas
Closest other hospitals
Healthcare pay in New Jersey
Registered nurses across New Jersey (all employers) earned a median of $106,500 a year (BLS, May 2025).Registered Nurse (RN) salary in New JerseyNurse Practitioner salary in New JerseyRespiratory Therapist salary in New JerseyHealthcare salaries in New Jersey
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Cite this data
Writing about Overlook 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.