Quick answers
- Does Ascension Columbia St Marys Hospital Milwaukee have an emergency room?
- Yes. Medicare (CMS) data lists emergency services at Ascension Columbia St Marys Hospital Milwaukee. In a medical emergency, call 911.
- Where is Ascension Columbia St Marys Hospital Milwaukee?
- 2323 N Lake Dr, Milwaukee, WI 53211, in Milwaukee County, Wisconsin.
- What is the phone number of Ascension Columbia St Marys Hospital Milwaukee?
- (414) 585-1374, as listed by Medicare (CMS).
- What is the Medicare star rating of Ascension Columbia St Marys Hospital Milwaukee?
- 3 out of 5 stars in the CMS overall hospital quality rating (CMS data updated 2026-07-22).
Specialties and care areas[4]
- Emergency medicine
- Critical care
- Orthopedic care
- Burn care
- Heart and vascular surgery
- Cancer care
- Stroke care
- Women's health (pregnancy and birth)
- Gynecology
- Breast imaging
- Physical therapy and rehabilitation
- Wound care and hyperbaric oxygen therapy
Procedures[4]
- AFib procedures
- Joint replacement
Programs and centers[4]
- Regional Burn Center
- Comprehensive Stroke Center
- Women's Medical Center
- Comprehensive cancer center
Emergency care (hospital website)[4]
| Emergency room | Yes |
|---|---|
| Open 24/7 | Yes |
| Stroke designation | Comprehensive Stroke Center |
Visiting and practical information
| Patient portal | MyChart (Ascension Wisconsin) |
|---|
Recognition[4]
- Comprehensive Stroke Center
- Chest Pain Center Accreditation with Primary PCI and Resuscitation (American College of Cardiology)
- Healthgrades America's 100 Best Hospitals 2022 and 2023
Doctors and clinicians (866)
866 doctors and other clinicians list Ascension Columbia St Marys Hospital Milwaukee 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
- Physician Assistant105
- Nurse Practitioner101
- Internal Medicine95
- Family Practice71
- Emergency Medicine63
- Diagnostic Radiology62
- Anesthesiology49
- Certified Registered Nurse Anesthetist (CRNA)22
- Hospitalist21
- Cardiovascular Disease (Cardiology)20
- Pathology16
- Orthopedic Surgery16
Doctors with a page on this site (866)
- Aaron L. Sandock, MDAnesthesiology
- Abbas Ali, MDPulmonary Disease
- Abbey M. Mattes, MDEmergency Medicine
- Abby L. KosmoskiNurse Practitioner
- Abdul Hafeez, MDInternal Medicine
- Abdullah A. Fayyad, MDGastroenterology
- Abha Malhotra, MDCardiovascular Disease (Cardiology)
- Abigail L. Heried, PAPhysician Assistant
- Abigail R. WilsonPhysician Assistant
- Abraham Varghese, MDInternal Medicine
- Adam E. Blackwell, MDFamily Practice
- Adam Eltorai, MDDiagnostic Radiology
- Adam H. Romeiser Iii, MDFamily Practice
- Adam N. Wallace, MDDiagnostic Radiology
- Adam R. Toth, DOAnesthesiology
- Adelle Safo, MDAnesthesiology
- Ahmed Siddig Muhammed AhmedNeurology
- Ajay K. Sahajpal, MDSurgical Oncology
- Aleksandr Pevtsov, DOEmergency Medicine
- Alexander CookFamily Practice
- Alexander K. Johnson, MDPsychiatry
- Alexandra Roznowski, CNACertified Registered Nurse Anesthetist (CRNA)
- Alia L. Fox, MDAnesthesiology
- Alice M. HeldNurse Practitioner
And 842 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).
- Mental Health Emergency Center, Inc2.5 mi · Milwaukee, WI · Psychiatric Hospital
- Ascension SE Wisconsin Hospital4.9 mi · Milwaukee, WI · Acute Care Hospital
- Milwaukee VA Medical Center5.4 mi · Milwaukee, WI · Federal/VA Acute Care Hospital
- Ascension St Francis Hospital5.8 mi · Milwaukee, WI · Acute Care Hospital
- Aurora St Lukes Medical Center6.1 mi · Milwaukee, WI · Acute Care Hospital
Other hospitals nearby
- Orthopaedic Hospital of Wisconsin1.7 mi · Glendale, WI · Acute Care 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
- Milwaukee Catholic Home0.1 mi · Milwaukee, WI · 5 of 5 stars
- Eastcastle Pl Bradford Ter Conv Ctr0.2 mi · Milwaukee, WI · 4 of 5 stars
- Edenbrook Lakeside0.3 mi · Milwaukee, WI · 1 of 5 stars
All nursing homes in the state →
Hospice providers
- By Your Side Hospice Care5.8 mi · Milwaukee, WI
- Aurora at Home6.2 mi · Wauwatosa, WI · 4 of 5 stars
- North Shore at Home6.9 mi · Glendale, WI
All hospice providers in the state →
Home health agencies
- Alpha Care Health Services of Wi, Inc.2.3 mi · Milwaukee, WI
- North Shore at Home2.3 mi · Milwaukee, WI
- Laabs Home Health Care4.6 mi · Milwaukee, WI
All home health agencies in the state →
Dialysis facilities
- DaVita River Center Dialysis1.0 mi · Milwaukee, WI · 4 of 5 stars
- DaVita Estabrook Park Dialysis1.7 mi · Milwaukee, WI · 2 of 5 stars
- DaVita Humboldt Ridge Dialysis1.7 mi · Milwaukee, WI · 2 of 5 stars
Outpatient surgery centers nearby
Medicare-certified ambulatory surgery centers within 25 miles, by straight-line distance.
- Metropolitan Medical Center1.6 mi · Shorewood, WI
- Center for Digestive Health5.3 mi · Milwaukee, WI
- Wisconsin Surgery Center5.3 mi · Milwaukee, 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
- Health Care for the Homeless of Milwaukee, Inc.1.7 mi · Milwaukee, WI · Community health center
- Milwaukee Health Services, Inc.1.8 mi · Milwaukee, WI · Community health center
- Salvation Army Clinic2.0 mi · Milwaukee, WI · Community health center
Clinics and urgent care
- Children's Health System3.7 mi · Milwaukee, WI · Urgent care center
- Medpoint Urgent Care, LLC5.8 mi · Glendale, WI · Urgent care center
- Carbon Health Primary Care of Wisconsin SC8.0 mi · Wauwatosa, WI · Urgent care center
Pharmacies
- Aurora Pharmacy Inc1.0 mi · Milwaukee, WI · Community/retail pharmacy
- Hotel Pharmacy1.0 mi · Milwaukee, WI · Community/retail pharmacy
- W1.0 mi · Milwaukee, WI · Pharmacy
Assisted living nearby
Licensed homes from the official state licence list, by straight-line distance.
- Chai Point Assisted Living1.0 mi · Milwaukee, WI
- Kavod Terrace1.0 mi · Milwaukee, WI
- Saint Johns on the Lake1.0 mi · Milwaukee, WI
- St Rita Square I1.0 mi · Milwaukee, 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 Ascension Columbia St Marys Hospital Milwaukee 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) | 3 of 5 stars |
|---|---|
| Overall rating of the hospital | 2 of 5 stars |
| Would recommend the hospital | 3 of 5 stars |
| Nurses communicated well | 3 of 5 stars |
| Doctors communicated well | 3 of 5 stars |
| Staff explained medicines | 2 of 5 stars |
| Information about recovery at home | 3 of 5 stars |
| Room and bathroom kept clean | 3 of 5 stars |
| Quiet at night | 3 of 5 stars |
| Rated the hospital 9 or 10 out of 10 | 63%National average: 72% |
| Would definitely recommend the hospital | 62%National average: 71% |
| Nurses “always” communicated well | 75%National average: 80% |
| Doctors “always” communicated well | 78%National average: 80% |
| Staff “always” explained medicines before giving them | 53%National average: 62% |
| Were given information about recovery at home | 83%National average: 86% |
| Room and bathroom “always” clean | 67%National average: 74% |
| Area around the room “always” quiet at night | 60%National average: 60% |
| Completed surveys | 473Response rate: 22% |
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) | 0.289Better than the national benchmark |
|---|---|
| Catheter-associated urinary tract infections (CAUTI) | 0.396Better than the national benchmark |
| Surgical site infections after colon surgery | 1.17No different from the national benchmark |
| Surgical site infections after abdominal hysterectomy | Not reported to Medicare |
| MRSA bloodstream infections | 0.34No different from the national benchmark |
| Clostridioides difficile (C. diff) intestinal infections | 0.508Better than 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 | 12.3% |
|---|---|
| Deaths within 30 days: heart failure patients | 10.4% |
| Deaths within 30 days: pneumonia patients | 13.8% |
| Deaths within 30 days: COPD patients | 7.9% |
| Deaths within 30 days: stroke patients | 9.5% |
| Deaths within 30 days: coronary bypass surgery (CABG) | 2.7% |
| Serious complications (patient safety indicator PSI-90) | 0.94No different from the national rate |
| Complications after hip or knee replacement | Too few cases to report |
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 | 15.5% |
| Readmitted within 30 days: heart failure | 20.7% |
| Readmitted within 30 days: pneumonia | 16.1% |
| Readmitted within 30 days: COPD | 18.6% |
| Readmitted within 30 days: coronary bypass surgery | 12.2% |
| Readmitted within 30 days: hip or knee replacement | Too few cases to report |
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.
| Average (median) time patients spent in the emergency room before leaving (OP-18b) | 167 minutesNational average: 162 minutes |
|---|---|
| Patients who left the emergency room before being seen (OP-22) | Not reported to Medicare |
| Sepsis patients who got all the recommended early care (SEP-1) | 65%National average: 65% |
Source: Timely and Effective Care - Hospital — CMS, released July 22, 2026; data from October 2024 to September 2025.
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 Ascension Columbia St Marys Hospital Milwaukee 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 | 2323 N Lake Dr, Milwaukee, WI 53211 |
| County | Milwaukee County |
| State | Wisconsin |
| Phone | (414) 585‑1374 |
| Emergency services | Yes |
| Ownership | Voluntary non-profit - Church |
| Medicare overall rating | 3 of 5 stars |
| Birthing-friendly designation | Yes (meets CMS criteria) |
| CMS Certification Number | 520051 |
| Name in Medicare records | ASCENSION COLUMBIA ST MARYS HOSPITAL MILWAUKEE |
| Profile level | Medicare data + hospital website |
| Main phone on the hospital’s website | (414) 585‑1000[4] |
| Name on the hospital’s website | Ascension Columbia St. Mary's Hospital - Milwaukee Campus |
| Official website | healthcare.ascension.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 2026-11-05.
- Ascension Columbia St. Mary's Hospital - Milwaukee Campus | Ascension — healthcare.ascension.org