Quick answers
- Does Oconomowoc Memorial Hospital have an emergency room?
- Yes. Medicare (CMS) data lists emergency services at Oconomowoc Memorial Hospital. In a medical emergency, call 911.
- Where is Oconomowoc Memorial Hospital?
- 791 E Summit Ave, Oconomowoc, WI 53066, in Waukesha County, Wisconsin.
- What is the phone number of Oconomowoc Memorial Hospital?
- (262) 569-9400, as listed by Medicare (CMS).
- What is the Medicare star rating of Oconomowoc Memorial Hospital?
- 5 out of 5 stars in the CMS overall hospital quality rating (CMS data updated 2026-07-22).
Specialties and care areas[4]
- Brain, spine and nervous system
- Emergency care
- Heart and vascular care
- Hospice care
- Imaging services
- Lab services
- Orthopedics
- Pharmacy services
- Pregnancy and birth care
- Pulmonology
- Surgery services
- Women's health
Emergency care (hospital website)[4]
| Emergency room | Yes |
|---|---|
| Open 24/7 | Yes |
Visiting and practical information
Doctors and clinicians (466)
466 doctors and other clinicians list Oconomowoc Memorial Hospital as a hospital where they work, in Medicare's official clinician data (updated 2026-10-02). It is not a complete staff list.
Main specialties
- Nurse Practitioner71
- Family Practice57
- Internal Medicine47
- Physician Assistant44
- Anesthesiology33
- Diagnostic Radiology25
- Cardiovascular Disease (Cardiology)16
- Orthopedic Surgery16
- General Surgery14
- Hospitalist13
- Gastroenterology13
- Obstetrics/Gynecology10
Doctors with a page on this site (466)
- Aasim Mohammed, MDPulmonary Disease
- Abby L. Ziegler, NPNurse Practitioner
- Abdul-Bari Syed, DOInternal Medicine
- Adam C. GrimmPhysician Assistant
- Adam F. Van Huis, MDGastroenterology
- Adam Leidal, MDInternal Medicine
- Adisalem Mulatu Teferi, MDInternal Medicine
- Aisha Fatima, MDPathology
- Aji B. Njie, MDInfectious Disease
- Alan ThiedePhysician Assistant
- Alexis L. LeinwanderNurse Practitioner
- Alison M. BaierlPhysician Assistant
- Allison K. ZoltakPhysician Assistant
- Allison M. FaheyNurse Practitioner
- Allison M. Nelson, MDObstetrics/Gynecology
- Alysia KruegerNurse Practitioner
- Alyssa Athas, PAPhysician Assistant
- Amanda M. McQueen Klein, MDAnesthesiology
- Amanda R. Doubleday, DOGeneral Surgery
- Amber L. WagnerPhysician Assistant
- Amir R. Chaudhari, DOCardiac Electrophysiology
- Amy L. Galati, DPMPodiatry
- Amy L. Hewuse, NPNurse Practitioner
- Amy M. Henry, MDAnesthesiology
And 442 more: the button below opens the full list.
Names link to the doctor’s page on this site when there is one, otherwise to the official NPI Registry record (U.S. Department of Health and Human Services). Find a doctor · Source: CMS Facility Affiliation Data
Other emergency rooms nearby
Hospitals that list emergency services, by straight-line distance (not driving distance).
- Aurora Medical Center - Summit0.9 mi · Summit, WI · Acute Care Hospital
- Watertown Memorial Hospital13 mi · Watertown, WI · Acute Care Hospital
- Waukesha Memorial Hospital14 mi · Waukesha, WI · Acute Care Hospital
- Aurora Medical Ctr Washington County16 mi · Hartford, WI · Acute Care Hospital
- Community Memorial Hospital18 mi · Menomonee Falls, WI · Acute Care Hospital
Other hospitals nearby
- Rogers Memorial Hospital2.9 mi · Oconomowoc, WI · Psychiatric Hospital
- Rehabilitation Hospital of Wisconsin11 mi · Waukesha, WI · Inpatient Rehabilitation Hospital
- Waukesha County Mental Health Ctr14 mi · Waukesha, WI · Psychiatric Hospital
Nursing homes, hospice, home health and dialysis nearby
Medicare-certified providers within 25 miles, by straight-line distance. Hospice and home health care is given at home: their address is the office.
Nursing homes
- Shorehaven HLTH & Rehab CTR2.1 mi · Oconomowoc, WI · 5 of 5 stars
- Lake Country Health Services2.9 mi · Oconomowoc, WI · 2 of 5 stars
- Masonic Center for Health & Rehab Inc.5.6 mi · Dousman, WI · 5 of 5 stars
All nursing homes in the state →
Hospice providers
- Commonheart Hospice11 mi · Waukesha, WI · 2 of 5 stars
- Prohealth Home Hospice11 mi · Waukesha, WI · 5 of 5 stars
- St Croix Hospice Waukesha11 mi · Waukesha, WI · 4 of 5 stars
All hospice providers in the state →
Home health agencies
- Commonheart Home Health11 mi · Waukesha, WI
- Great Lakes Home Health LLC11 mi · Waukesha, WI
- Hannah Home Health Care11 mi · Waukesha, WI · 5 of 5 stars
All home health agencies in the state →
Dialysis facilities
- DaVita Oconomowoc Dialysis0.9 mi · Oconomowoc, WI · 2 of 5 stars
- DaVita Lake Country Dialysis (PD)6.1 mi · Delafield, WI · 4 of 5 stars
- DaVita Waukesha Dialysis11 mi · Waukesha, WI · 2 of 5 stars
Outpatient surgery centers nearby
Medicare-certified ambulatory surgery centers within 25 miles, by straight-line distance.
- Lake Country Endoscopy Center0.9 mi · Oconomowoc, WI
- The Orthopaedic Surgery Center LLC11 mi · Pewaukee, WI
- Gi Specialists11 mi · Waukesha, WI
Community care nearby
Health centers, clinics, urgent care and pharmacies closest to this hospital, by straight-line distance, from official HRSA, Medicare and NPI Registry data. In a medical emergency, call 911.
Community health centers
- Rock River Community Clinic - Watertown13 mi · Watertown, WI · Community health center
- Rock River Community Clinic - Watertown13 mi · Watertown, WI · Community health center
- Rock River Community Clinic - Watertown13 mi · Watertown, WI · Community health center
Clinics and urgent care
- American Current Care P.A.15 mi · Waukesha, WI · Urgent care center
- Fort Healthcare Johnson Creek Clinic15 mi · Johnson Creek, WI · Rural health clinic
- Fort Healthcare Jefferson16 mi · Jefferson, WI · Rural health clinic
Pharmacies
- Aurora Pharmacy Inc0.9 mi · Oconomowoc, WI · Pharmacy
- Aurora Pharmacy, Inc.0.9 mi · Summit, WI · Pharmacy
- Costco Wholesale Corporation0.9 mi · Oconomowoc, WI · Community/retail pharmacy
Assisted living nearby
Licensed homes from the official state licence list, by straight-line distance.
- Adult Mental Health Residential Care0.9 mi · Oconomowoc, WI
- Adult Residential Care0.9 mi · Oconomowoc, WI
- Austin Hall0.9 mi · Oconomowoc, WI
- Casey House0.9 mi · Oconomowoc, WI
About the Medicare star rating
CMS (the federal Medicare agency) gives many hospitals an overall rating from 1 to 5 stars, based on measures of mortality, safety, readmissions, patient experience and timely care. It is one piece of information: ask your doctor what matters for your care. See the full Medicare profile →
Medicare quality data
What Oconomowoc Memorial Hospital reported to Medicare (CMS), the federal agency that publishes these results for hospitals nationwide. These are averages for many patients, not a prediction for any one person: ask your doctor what matters for your care. In a medical emergency, call 911.
What patients said (patient survey)
What this means: Patients who stayed overnight answered a national survey (HCAHPS) about their stay. More stars mean patients reported a better experience than at other hospitals. The percentages show how often patients gave the best answer, next to the national average.
| Summary star rating (all survey topics) | 4 of 5 stars |
|---|---|
| Overall rating of the hospital | 4 of 5 stars |
| Would recommend the hospital | 5 of 5 stars |
| Nurses communicated well | 4 of 5 stars |
| Doctors communicated well | 3 of 5 stars |
| Staff explained medicines | 3 of 5 stars |
| Information about recovery at home | 4 of 5 stars |
| Room and bathroom kept clean | 3 of 5 stars |
| Quiet at night | 4 of 5 stars |
| Rated the hospital 9 or 10 out of 10 | 76%National average: 72% |
| Would definitely recommend the hospital | 76%National average: 71% |
| Nurses “always” communicated well | 81%National average: 80% |
| Doctors “always” communicated well | 79%National average: 80% |
| Staff “always” explained medicines before giving them | 62%National average: 62% |
| Were given information about recovery at home | 90%National average: 86% |
| Room and bathroom “always” clean | 68%National average: 74% |
| Area around the room “always” quiet at night | 68%National average: 60% |
| Completed surveys | 509Response rate: 35% |
Source: Patient survey (HCAHPS) - Hospital — CMS, released July 22, 2026; patients discharged October 2024 to September 2025.
Infections caught in the hospital
What this means: CMS compares the number of infections patients caught in this hospital with the number expected for a hospital like it. The number shown is that ratio: below 1 means fewer infections than expected, above 1 means more. “Better” or “worse” is shown only when the difference is clear in the data.
| Central line bloodstream infections (CLABSI) | Not reported to Medicare |
|---|---|
| Catheter-associated urinary tract infections (CAUTI) | Not reported to Medicare |
| Surgical site infections after colon surgery | Not reported to Medicare |
| Surgical site infections after abdominal hysterectomy | Not reported to Medicare |
| MRSA bloodstream infections | Not reported to Medicare |
| Clostridioides difficile (C. diff) intestinal infections | 0.451No different from the national benchmark |
Source: Healthcare Associated Infections - Hospital — CMS, released July 22, 2026; data from October 2024 to September 2025.
Complications and deaths
What this means: Death rates are the share of patients who died within 30 days of going into the hospital for that condition, adjusted for how sick they were. PSI-90 combines several serious complications (a lower number is better). “No different from the national rate” is the most common result and means the hospital is in line with hospitals nationwide.
| Deaths within 30 days: heart attack patients | 11.6% |
|---|---|
| Deaths within 30 days: heart failure patients | 11.7% |
| Deaths within 30 days: pneumonia patients | 13.2% |
| Deaths within 30 days: COPD patients | 7.6% |
| Deaths within 30 days: stroke patients | 13.9% |
| Deaths within 30 days: coronary bypass surgery (CABG) | Not reported to Medicare |
| Serious complications (patient safety indicator PSI-90) | 0.88No different from the national rate |
| Complications after hip or knee replacement | 3.8% |
Source: Complications and Deaths - Hospital — CMS, released September 10, 2026; data from July 2022 to June 2025.
Return visits to the hospital (readmissions)
What this means: The share of patients who had to be admitted to a hospital again within 30 days after going home, adjusted for how sick they were. A lower percentage is better.
| Returned to any hospital within 30 days (all patients) | Not reported to Medicare |
|---|---|
| Readmitted within 30 days: heart attack | 14.2% |
| Readmitted within 30 days: heart failure | 21.5% |
| Readmitted within 30 days: pneumonia | 17.4% |
| Readmitted within 30 days: COPD | 19.7% |
| Readmitted within 30 days: coronary bypass surgery | Not reported to Medicare |
| Readmitted within 30 days: hip or knee replacement | 5.3% |
Source: Unplanned Hospital Visits - Hospital — CMS, released September 10, 2026; data from July 2023 to June 2025.
Emergency room times and sepsis care
What this means: ER time is the middle (median) time from arriving at the emergency room to leaving it; busier ERs usually have longer times, so the ER volume is shown too. Leaving before being seen: a lower percentage is better. Sepsis is a life-threatening reaction to an infection; a higher percentage means more patients got every recommended early step.
| Emergency room volume (patients per year) | Low (under 20,000) |
|---|---|
| Average (median) time patients spent in the emergency room before leaving (OP-18b) | 136 minutesNational average: 162 minutes |
| Patients who left the emergency room before being seen (OP-22) | 0%National average: 2% |
| Sepsis patients who got all the recommended early care (SEP-1) | 80%National average: 65% |
Source: Timely and Effective Care - Hospital — CMS, released July 22, 2026; data from January 2024 to December 2024.
ER wait times and Medicare ratings nearby
How this hospital compares with others in the area, ranked only by official Medicare (CMS) numbers.
Prices
We have not been able to read a price file for Oconomowoc Memorial Hospital yet. Every US hospital must publish its standard charges online (federal price transparency rule): look for “price transparency” or “standard charges” on the hospital’s website, or call the hospital and ask for an estimate. In a medical emergency, call 911.
Hospital information
| Hospital type | Acute Care Hospital |
|---|---|
| Address | 791 E Summit Ave, Oconomowoc, WI 53066 |
| County | Waukesha County |
| State | Wisconsin |
| Phone | (262) 569‑9400 |
| Emergency services | Yes |
| Ownership | Voluntary non-profit - Private |
| Medicare overall rating | 5 of 5 stars |
| Birthing-friendly designation | Yes (meets CMS criteria) |
| CMS Certification Number | 520062 |
| Name in Medicare records | OCONOMOWOC MEMORIAL HOSPITAL |
| Profile level | Medicare data + hospital website |
| Name on the hospital’s website | ProHealth Oconomowoc Memorial Hospital |
| Official website | prohealthcare.org |
| Corrections | Report an error or suggest an update → |
Sources
- Hospital General Information — Centers for Medicare & Medicaid Services (CMS), data updated 2026-07-22, retrieved 2026-10-29
- Medicare Care Compare — official Medicare profile of this hospital
- U.S. Census Bureau Geocoder — map position used for distances
From the hospital’s website
Numbers match the citations above. Checked 2026-11-02.
- ProHealth Oconomowoc Memorial Hospital | Oconomowoc, WI — prohealthcare.org