CMS certification 450571
Shannon Medical Center
120 E Harris Ave., San Angelo, TX 76903
Shannon Medical Center has a CMS overall rating of 3 out of 5 stars. 66% of patients who answered CMS's national survey would definitely recommend it, against a US average of 71%. Of the 27 death, complication, infection and readmission measures CMS could compare, it does better than the nation on 4 and worse on none. Emergency patients spend a median of 2 h 24 min in its emergency department before leaving (US median 2 h 42 min).
Every figure on this page is published by CMS; we arrange and explain it, and score nothing ourselves.
What patients said
Answers from patients who stayed here, collected by CMS in the national HCAHPS survey: 483 completed surveys, 20% response rate, Oct 2024 – Sep 2025.
Emergency department
How long emergency patients spent here and how some time-critical care went, from CMS's timely and effective care measures, Oct 2024 – Sep 2025. CMS classes this emergency department's patient volume as very high; busier departments tend to have longer times, so the national median for departments of the same volume is shown too. These are medians over a year of visits, not a live wait time.
| Measure | This hospital | TX | US |
|---|---|---|---|
| Median time in the emergency department before leaving Lower is better · 815 visits sampled · US median for EDs of the same volume: 3 h 21 min | 2 h 24 min | 2 h 25 min | 2 h 42 min |
| Median time for psychiatric and mental health patients Lower is better · 28 visits sampled | 3 h 26 min | 3 h 53 min | 4 h 17 min |
| Left before being seen Lower is better · 68,996 patients | 2% | 1% | 2% |
| Stroke symptoms: brain scan read within 45 minutes Higher is better · 24 patients | 83% | 67% | 69% |
| Severe sepsis and septic shock: all recommended care given Higher is better · 404 patients | 67% | 68% | 65% |
Deaths
How many patients died within 30 days of admission, adjusted by CMS for how sick they were. Lower is better. Data from Jul 2022 – Jun 2025.
| Measure | CMS comparison | This hospital | National |
|---|---|---|---|
| All patients, hospital-wide 4,008 cases | Too few cases | 3.7% | 3.9% |
| Heart attack 138 cases | Too few cases | 14% | 11.9% |
| Heart failure 466 cases | Too few cases | 11.8% | 11.1% |
| Pneumonia 607 cases | Too few cases | 13.5% | 15.2% |
| Stroke 266 cases | Too few cases | 17.4% | 11.9% |
| COPD 144 cases | Too few cases | 7.3% | 8.6% |
| Heart bypass surgery (CABG) 78 cases | Too few cases | 4.2% | 2.4% |
Complications
How often patients had serious complications, most of them after surgery, adjusted for how sick they were. Lower is better. Data from Jul 2022 – Jun 2024.
| Measure | CMS comparison | This hospital | National |
|---|---|---|---|
| Serious complications, combined measure | No different | 1.02 likely 0.71 – 1.33 | 1 |
| After hip or knee replacement 54 cases | Too few cases | 3.2% | 4.1% |
| Deaths after a serious but treatable surgical complication 90 cases | No different | 157.58 per 1,000 likely 104.08 per 1,000 – 211.09 per 1,000 | 173.3 per 1,000 |
| Pressure ulcers (bed sores) 5,977 cases | No different | 0.49 per 1,000 likely 0 per 1,000 – 1.14 per 1,000 | 0.63 per 1,000 |
| Collapsed lung caused by a procedure 8,418 cases | No different | 0.28 per 1,000 likely 0.09 per 1,000 – 0.48 per 1,000 | 0.21 per 1,000 |
| Broken bones from falls in the hospital 8,297 cases | No different | 0.28 per 1,000 likely 0.09 per 1,000 – 0.46 per 1,000 | 0.27 per 1,000 |
| Bleeding or hematoma after surgery 1,935 cases | No different | 2.83 per 1,000 likely 1.43 per 1,000 – 4.23 per 1,000 | 2.34 per 1,000 |
| Kidney injury needing dialysis after surgery 648 cases | No different | 1.44 per 1,000 likely 0 per 1,000 – 3.05 per 1,000 | 1.67 per 1,000 |
| Breathing failure after surgery 661 cases | No different | 10.29 per 1,000 likely 3.66 per 1,000 – 16.92 per 1,000 | 9.42 per 1,000 |
| Blood clots in the lungs or legs after surgery 1,963 cases | No different | 2.8 per 1,000 likely 0.83 per 1,000 – 4.76 per 1,000 | 3.52 per 1,000 |
| Sepsis after surgery 620 cases | No different | 7.12 per 1,000 likely 3.45 per 1,000 – 10.79 per 1,000 | 5.27 per 1,000 |
| Surgical wound splitting open 406 cases | No different | 1.84 per 1,000 likely 0.41 per 1,000 – 3.28 per 1,000 | 1.77 per 1,000 |
| Accidental cut or tear during abdominal surgery 1,402 cases | No different | 0.79 per 1,000 likely 0 per 1,000 – 1.73 per 1,000 | 1.06 per 1,000 |
Infections caught in the hospital
Standardized infection ratio: 1.0 means as many infections as CMS predicted for a hospital like this one. Lower is better. Data from Oct 2024 – Sep 2025.
| Measure | CMS comparison | This hospital | National |
|---|---|---|---|
| Bloodstream infections from central lines (CLABSI) | Better | 0.31 likely 0.08 – 0.84 | 1 |
| Urinary tract infections from catheters (CAUTI) | No different | 0.83 likely 0.41 – 1.52 | 1 |
| Surgical site infections after colon surgery | No different | 0.69 likely 0.22 – 1.66 | 1 |
| Surgical site infections after abdominal hysterectomy | No different | 0.64 likely 0.11 – 2.1 | 1 |
| MRSA bloodstream infections | No different | 1.09 likely 0.44 – 2.26 | 1 |
| C. diff intestinal infections | Better | 0.45 likely 0.27 – 0.71 | 1 |
Readmissions and return visits
How often patients had to come back to a hospital after going home. Lower is better. Data from Jul 2023 – Jun 2025.
| Measure | CMS comparison | This hospital | National |
|---|---|---|---|
| Readmitted after a heart attack 255 cases | Too few cases | 14.9% | 14.4% |
| Readmitted after heart failure 839 cases | Too few cases | 20.6% | 21.3% |
| Readmitted after pneumonia 946 cases | Too few cases | 16.6% | 17.3% |
| Readmitted after COPD 256 cases | Too few cases | 21.6% | 20% |
| Readmitted after heart bypass surgery 93 cases | Too few cases | 13% | 11% |
| Readmitted after hip or knee replacement 59 cases | Too few cases | 5.4% | 5.8% |
| Days back in hospital after a heart attack 156 cases | Too few cases | -7.4 days per 100 | — |
| Days back in hospital after heart failure 575 cases | Too few cases | -26.5 days per 100 | — |
| Days back in hospital after pneumonia 699 cases | Too few cases | -13 days per 100 | — |
| Unplanned visits after an outpatient colonoscopy 2,802 cases | No different | 13.1 per 1,000 likely 10.5 per 1,000 – 16.3 per 1,000 | 13 per 1,000 |
| Hospital admissions during outpatient chemotherapy 260 cases | No different | 9.1 per 100 likely 6.9 per 100 – 11.9 per 100 | 10.7 per 100 |
| ER visits during outpatient chemotherapy 260 cases | No different | 4.8 per 100 likely 3.4 per 100 – 6.7 per 100 | 5.4 per 100 |
| Unplanned visits after outpatient surgery 1,177 cases | No different | 0.9 likely 0.7 – 1.1 | — |
1 more measure had too few cases here to report.
Clinicians registered at this address
136 clinicians give this hospital's street address as their practice location in NPPES, the federal provider registry. The same address can take in offices and clinics in the building, and a listing does not prove admitting privileges or current employment.
| Specialty | Clinicians |
|---|---|
| Internal Medicine | 27 |
| Emergency Medicine | 25 |
| Dietitian, Registered | 11 |
| Nurse Anesthetist, Certified Registered | 10 |
| Anesthesiology | 7 |
| Physical Therapist | 7 |
| Pharmacist | 5 |
| Registered Nurse | 5 |
| Family | 4 |
| Hospitalist | 4 |
| Physician Assistant | 4 |
| Acute Care | 3 |
First 12 alphabetically
How to read this page
- Everything here is published by CMS on Care Compare. We arrange it and explain it; the star ratings and the better / worse verdicts are CMS's, not ours.
- “No different” is the most common result on most measures at most hospitals. CMS only calls a result better or worse when the difference from the national rate is statistically clear.
- Death, complication and readmission rates are adjusted by CMS for how sick patients were, so hospitals that treat sicker patients can be compared fairly.
- Infection results are ratios: 1.0 means as many infections as CMS predicted for a hospital like this one, below 1.0 is fewer.
- These are hospital-wide results. They do not rate an individual doctor, nurse or department, and they are not medical advice.
CMS Care Compare data retrieved 4 Oct 2026, refreshed weekly. Where this data comes from and how we handle it · Report an error
Common questions about Shannon Medical Center
Is Shannon Medical Center a good hospital?
Shannon Medical Center has a CMS overall rating of 3 out of 5 stars. Of the 27 death, complication, infection and readmission measures CMS could compare, it does better than the nation on 4 and worse on none. These are hospital-wide results published by CMS; they do not rate individual doctors or departments.
Would patients recommend Shannon Medical Center?
66% of patients who answered CMS's national survey would definitely recommend it, against a US average of 71%. The figure comes from 483 completed HCAHPS surveys.
How long is the wait in the Shannon Medical Center emergency room?
Emergency patients spend a median of 2 h 24 min in its emergency department before leaving (US median 2 h 42 min). Among US emergency departments with very high patient volume, like this one, the median is 3 h 21 min. 2% of emergency patients left before being seen (US 2%). These are medians over a year of visits, not a live wait time.