Quick answers
- Does Avera St Mary's Hospital have an emergency room?
- Yes. Medicare (CMS) data lists emergency services at Avera St Mary's Hospital. In a medical emergency, call 911.
- Where is Avera St Mary's Hospital?
- 801 E Sioux, Pierre, SD 57501, in Hughes County, South Dakota.
- What is the phone number of Avera St Mary's Hospital?
- (605) 224-3100, as listed by Medicare (CMS).
- What is the Medicare star rating of Avera St Mary's Hospital?
- 2 out of 5 stars in the CMS overall hospital quality rating (CMS data updated 2026-10-26).
- Does Medicare reduce its payments to Avera St Mary's Hospital for hospital-acquired conditions?
- Yes. For fiscal year 2026, CMS applies a 1-percent reduction to Medicare payments to Avera St Mary's Hospital under the Hospital-Acquired Condition Reduction Program (Total HAC Score: 1.6685; a lower score is better). It is an adjustment to what Medicare pays the hospital, not a charge to patients (CMS data released January 26, 2026).
Specialties and care areas[4][5][6][7][8][10][11][12]
- Dialysis
- Sleep medicine
- Women's health
- Therapy and rehab
- Respiratory therapy
- Emergency Medicine
- Hospital Medicine
- Nephrology
- Medical Oncology
- Radiation Oncology
- Oncology & Hematology
- Orthopedics
- Obstetrics and Gynecology
- Pediatrics
- Family Medicine
- Cardiology
- Urology
- Dermatology
- ENT
- Pain Management
- Podiatry
- General Surgery
- Anesthesiology
Treatments[4][9][10]
- Dialysis
- Outpatient treatment center
- Wound care
- Respiratory therapy
- Physical Therapy
- Occupational Therapy
- Speech Therapy
- Cardiac and Pulmonary Rehabilitation
- Therapy for Parkinson's Disease
- TMJ Therapy
- Cardiovascular Screenings
- Lung Cancer Screening
- Genetic Testing and Counseling
- Infusion Center
Procedures[4][8]
- Same-day surgery
- Mammography
- Radiology and imaging
- Cardiovascular screenings
- Laboratory
- Sleep Study
Programs and centers[4][5][6][10][13]
- Emergency Department
- Women's Center
- Avera Cancer Institute
- Outpatient Treatment Center
- Sleep Lab
- Hospice
- Home Health
- Child Assessment Center
Emergency care (hospital website)[4][5]
| Emergency room | Yes |
|---|
Visiting and practical information
| Interpreters and languages | Language Translation is listed as a service on the emergency department page[5] |
|---|
Doctors and clinicians (222)
222 doctors and other clinicians list Avera St Mary's 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 Practitioner49
- Physician Assistant24
- Family Practice16
- Certified Registered Nurse Anesthetist (CRNA)15
- Internal Medicine12
- Pathology10
- Pulmonary Disease10
- Hematology/Oncology9
- Orthopedic Surgery7
- Radiation Oncology5
- General Surgery5
- Hospitalist4
Doctors with a page on this site (222)
- Abdalah Ahmed, MDHospitalist
- Adam J. Jorgensen, MDOphthalmology
- Alex J. Linn, MDNeurology
- Alexandra S. Higgins, MDHematology/Oncology
- Allison J. Johnson, NPNurse Practitioner
- Allison K. Hatcher, NPNurse Practitioner
- Alyssa J. Etzkorn, PAPhysician Assistant
- Alyssa Kahler, NPNurse Practitioner
- Amanda C. Rivera-Begeman, DOPathology
- Amber Lockwood, CNACertified Registered Nurse Anesthetist (CRNA)
- Amber McMillin, NPNurse Practitioner
- Amjad Panickaveettil Mohamed Basheer, MDCardiovascular Disease (Cardiology)
- Amy J. Dix, NPNurse Practitioner
- Amy J. Mundhenke, NPNurse Practitioner
- Amy K. Lueking, MDObstetrics/Gynecology
- Andras Szabo, MDInternal Medicine
- Andrea Worley, NPNurse Practitioner
- Andres E. Mendez-Hernandez, MDHematology/Oncology
- Andrew T. Figura, MDRadiation Oncology
- Andrew-Paul Deeb, MDGeneral Surgery
- Angie M. HumpalNurse Practitioner
- Anthony Breemo, MDInternal Medicine
- Anthony J. Hericks, DOPulmonary Disease
- Ashley L. Attig, PAPhysician Assistant
And 198 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).
- Eagle Butte Indian Health Service Hospital54 mi · Eagle Butte, SD · Critical Access Hospital
- Avera Missouri River Health Center56 mi · Gettysburg, SD · Critical Access Hospital
- Sanford Chamberlain Medical Center64 mi · Chamberlain, SD · Critical Access Hospital
- Avera Hand County Memorial Hospital and Clinic68 mi · Miller, SD · Critical Access Hospital
- Hans P Peterson Memorial Hospital - CAH69 mi · Philip, SD · Critical Access Hospital
Find the closest emergency room to where you are → · Compare ER wait times
Other hospitals near Pierre
- Winner Regional Healthcare Center - CAH73 mi · Winner, SD · Critical Access 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
- Avera Maryhouse Long Term Care0.1 mi · Pierre, SD · 5 of 5 stars
- Avantara Pierre0.2 mi · Pierre, SD · 2 of 5 stars
All nursing homes in the state →
Hospice providers
- Avera @ Home12 mi · Pierre, SD · 4 of 5 stars
All hospice providers in the state →
Home health agencies
- Avera @ Home12 mi · Pierre, SD · 4 of 5 stars
All home health agencies in the state →
Dialysis facilities
- Avera St Marys Hospital12 mi · Pierre, SD · 5 of 5 stars
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
- Access Health - Fort Pierre1.7 mi · Fort Pierre, SD · Community health center
- South Dakota Urban Indian Health, Inc. Sduih12 mi · Pierre, SD · Community health center
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 Avera St Mary's 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 | 4 of 5 stars |
| Nurses communicated well | 5 of 5 stars |
| Doctors communicated well | 4 of 5 stars |
| Patients got help quickly from staff | 5 of 5 stars |
| Staff explained medicines | 4 of 5 stars |
| Information about recovery at home | 4 of 5 stars |
| Room and bathroom kept clean | 4 of 5 stars |
| Restfulness of Environment | 4 of 5 stars |
| Care Coordination | 4 of 5 stars |
| Symptoms After Stay | 4 of 5 stars |
| Rated the hospital 9 or 10 out of 10 | 74%National average: 72% |
| Would definitely recommend the hospital | 67%National average: 71% |
| Nurses “always” communicated well | 83%National average: 80% |
| Doctors “always” communicated well | 80%National average: 80% |
| “Always” got help as soon as they wanted | 71%National average: 64% |
| Staff “always” explained medicines before giving them | 63%National average: 62% |
| Were given information about recovery at home | 89%National average: 86% |
| Room and bathroom “always” clean | 75%National average: 73% |
| Completed surveys | 251Response rate: 23% |
Source: Patient survey (HCAHPS) - Hospital — CMS, released October 19, 2026; patients discharged January 2025 to December 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.
| Clostridioides difficile (C. diff) intestinal infections | 0No different from the national benchmark |
|---|---|
| Not reported to Medicare | Central line bloodstream infections (CLABSI); Catheter-associated urinary tract infections (CAUTI); Surgical site infections after colon surgery; Surgical site infections after abdominal hysterectomy; MRSA bloodstream infections |
Source: Healthcare Associated Infections - Hospital — CMS, released October 19, 2026; data from January 2025 to December 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 failure patients | 14.8% |
|---|---|
| Deaths within 30 days: pneumonia patients | 19.7% |
| Deaths within 30 days: stroke patients | 12.2% |
| Serious complications (patient safety indicator PSI-90) | 1.04No different from the national rate |
| Complications after hip or knee replacement | 5.3% |
| Not reported to Medicare | Deaths within 30 days: coronary bypass surgery (CABG) |
| Too few cases to report | Deaths within 30 days: heart attack patients; Deaths within 30 days: COPD patients |
Source: Complications and Deaths - Hospital — CMS, released October 20, 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) | 15.3% |
|---|---|
| Readmitted within 30 days: heart failure | 21.2% |
| Readmitted within 30 days: pneumonia | 16% |
| Readmitted within 30 days: hip or knee replacement | 5.5% |
| Not reported to Medicare | Readmitted within 30 days: coronary bypass surgery |
| Too few cases to report | Readmitted within 30 days: heart attack; Readmitted within 30 days: COPD |
Source: Unplanned Hospital Visits - Hospital — CMS, released October 20, 2026; data from July 2024 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) | 126 minutesNational average: 162 minutes |
| Patients who left the emergency room before being seen (OP-22) | 1%National average: 2% |
| Sepsis patients who got all the recommended early care (SEP-1) | 85%National average: 66% |
Source: Timely and Effective Care - Hospital — CMS, released October 19, 2026; data from January 2024 to December 2024.
Medicare payment programs
Medicare (CMS) uses these federal programs to adjust what it pays hospitals, based on quality, safety and cost results. This is a payment to the hospital for Medicare patients, not a price you pay, and not a prediction for any one person. Results for Avera St Mary's Hospital, fiscal year 2026 (October 2025 to September 2026).
Show the Medicare payment program results
Hospital-Acquired Condition Reduction Program
What this means: Medicare gives each hospital a Total HAC Score built from patient-safety complications and from infections caught in the hospital. The quarter of hospitals with the highest (worst) scores gets a reduction in its Medicare payments. A lower score is better.
CMS says: Hospitals with a Total HAC Score above the 75th percentile of the Total HAC Score distribution will be subject to a 1-percent payment reduction.
| Medicare payment reduction, fiscal year 2026 | YesCMS applies a 1-percent payment reduction to this hospital. |
|---|---|
| Total HAC Score | 1.6685Lower is better. Hospitals above the 75th percentile of all scores get the reduction. |
Source: Hospital-Acquired Condition (HAC) Reduction Program — CMS, released January 26, 2026; patient-safety data from July 2022 to June 2024 and infection data from January 2023 to December 2024.
Hospital Readmissions Reduction Program
What this means: For six conditions, Medicare compares how often this hospital’s patients had to go back into a hospital within 30 days with how often that happens at an average hospital with similar patients. The ratio is that comparison: 1 means as many readmissions as expected, above 1 means more than expected (CMS calls these “excess readmissions”), below 1 means fewer.
CMS says: In October 2012, CMS began reducing Medicare payments for subsection(d) hospitals with excess readmissions under the Hospital Readmissions Reduction Program (HRRP).
| Heart failure | 1.0059More readmissions than expected |
|---|---|
| Pneumonia | 0.9558Fewer readmissions than expected |
| COPD (chronic lung disease) | 0.9763Fewer readmissions than expected |
| Hip or knee replacement | 0.8477Fewer readmissions than expected |
| No result published | Heart attack; Coronary bypass surgery (CABG) (not reported, or too few cases) |
Source: Hospital Readmissions Reduction Program — CMS, released January 26, 2026; patients discharged July 2021 to June 2024.
Hospital Value-Based Purchasing Program
What this means: Medicare scores hospitals in four areas, each from 0 to 100, and combines them into a Total Performance Score from 0 to 100. A higher score means better results on these measures. Medicare uses the score to adjust what it pays the hospital.
CMS says: This program adjusts payments to hospitals under the Inpatient Prospective Payment System (IPPS) based on the quality of care they deliver.
| Total Performance Score | 35.12 out of 100Median of the 2,455 hospitals in the program: 29.50 |
|---|---|
| Clinical outcomes (deaths and complications) | 12.50 out of 100 |
| Person and community engagement (patient survey) | 33.00 out of 100 |
| Safety (infections and sepsis care) | 55.00 out of 100 |
| Efficiency and cost reduction (Medicare spending) | 40.00 out of 100 |
Source: Hospital Value-Based Purchasing (HVBP) - Total Performance Score — CMS, released January 26, 2026, fiscal year 2026. Program description: The Hospital Value-Based Purchasing (VBP) Program — CMS, page last modified September 10, 2024.
Medicare spending per patient (MSPB)
What this means: This compares what Medicare spent on a hospital stay, counting the 3 days before it and the 30 days after, with the national median hospital, after adjusting for the patient’s age and health and for local prices. A ratio of 1.00 is the national median hospital; below 1.00 means Medicare spent less, above 1.00 means more. It measures the cost to Medicare, not the quality of care.
CMS says: The Medicare Spending Per Beneficiary (MSPB) Measure shows whether Medicare spends more, less, or about the same for an episode of care (episode) at a specific hospital compared to all hospitals nationally.
| Medicare spending per patient, ratio | 0.93Below the national median hospital (1.00): Medicare spent less |
|---|
Source: Medicare Spending Per Beneficiary - Hospital — CMS, released October 19, 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 Avera St Mary's 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 | 801 E Sioux, Pierre, SD 57501 |
| County | Hughes County |
| State | South Dakota |
| Phone | (605) 224‑3100 |
| Emergency services | Yes |
| Ownership | Voluntary non-profit - Private |
| Medicare overall rating | 2 of 5 stars |
| Birthing-friendly designation | Yes (meets CMS criteria) |
| CMS Certification Number | 430015 |
| Name in Medicare records | AVERA ST MARY'S HOSPITAL |
| Profile level | Medicare data + hospital website |
| Name on the hospital’s website | Avera St. Mary's Hospital |
| Official website | locations.avera.org |
| Corrections | Report an error or suggest an update → |
Sources
- Hospital General Information — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-26, retrieved 2026-11-13
- 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 2026-10-30.
- Avera St. Mary's Hospital - Pierre, SD — locations.avera.org
- Avera St Mary's Emergency — Pierre, SD — locations.avera.org
- Avera Women's Center — Pierre, SD — locations.avera.org
- Avera General Surgery — Pierre, SD — locations.avera.org
- Helmsley Center at Avera St. Mary's Hospital - Pierre, South Dakota — locations.avera.org
- Avera Therapy — E Sioux Ave, Pierre, SD — locations.avera.org
- Avera Cancer Institute — Pierre, SD — locations.avera.org
- Avera Orthopedics — Pierre, SD — locations.avera.org
- Avera Dialysis — Pierre, SD — locations.avera.org
- South Building — Avera St. Mary's, Pierre SD — locations.avera.org