Ascension Seton Williamson
ASCENSION SETON WILLIAMSON in Round Rock, TX charges 11.9x the Medicare reimbursement rate on average, with 26% of analyzed procedures showing significant price variations.
Round Rock, TX 78664 · Acute Care Hospitals · CMS Rating: 4/5
About the analyst
Kevin Nyk analyzes hospital pricing data at BillRazor Research. He specializes in Medicare reimbursement patterns and chargemaster pricing across U.S. hospitals. Expertise: hospital pricing, Medicare rates, chargemaster analysis.
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Pricing grade
F
Very high
Avg markup vs Medicare
11.87x
Charge / Medicare rate
Max markup
21.96x
Worst procedure
Procedures analyzed
50
With pricing data
Outlier procedures
26%
Above 90th percentile
Pricing grades reflect how this hospital's chargemaster (list) rates compare to Medicare reimbursement benchmarks within the same state. Grades measure pricing patterns only — not quality of care, patient outcomes, or clinical performance. A lower grade does not mean a hospital provides inferior care. Based on publicly available federal data. Not endorsed by or affiliated with any government agency.
| Procedure | Code | Gross charge | Cash price | Medicare | Markup |
|---|---|---|---|---|---|
| RED BLOOD CELL DISORDERS WITHOUT MCC | 812 | $84,759 | $42,380 | — | 22x |
| CERVICAL SPINAL FUSION WITH CC | 472 | $316,316 | $158,158 | — | 17.1x |
| ESOPHAGITIS, GASTROENTERITIS AND MISCELLANEOUS DIGESTIVE DISORDERS WITHOUT MCC | 392 | $70,953 | $35,477 | — | 15.2x |
| HIP REPLACEMENT WITH PRINCIPAL DIAGNOSIS OF HIP FRACTURE WITHOUT MCC | 522 | $209,744 | $104,872 | — | 15.1x |
| CARDIAC ARRHYTHMIA AND CONDUCTION DISORDERS WITH MCC | 308 | $92,069 | $46,035 | — | 15.1x |
| COMBINED ANTERIOR AND POSTERIOR SPINAL FUSION WITHOUT CC/MCC | 455 | $500,400 | $250,200 | — | 14.9x |
| SPINAL FUSION EXCEPT CERVICAL WITHOUT MCC | 460 | $327,446 | $163,723 | — | 14.8x |
| GASTROINTESTINAL HEMORRHAGE WITH MCC | 377 | $159,614 | $79,807 | — | 14.4x |
| FRACTURE, SPRAIN, STRAIN AND DISLOCATION EXCEPT FEMUR, HIP, PELVIS AND THIGH WITHOUT MCC | 563 | $63,464 | $31,732 | — | 14.2x |
| KIDNEY AND URINARY TRACT INFECTIONS WITHOUT MCC | 690 | $66,158 | $33,079 | — | 13.7x |
| MISCELLANEOUS DISORDERS OF NUTRITION, METABOLISM, FLUIDS AND ELECTROLYTES WITHOUT MCC | 641 | $59,937 | $29,969 | — | 13.6x |
| INTRACRANIAL HEMORRHAGE OR CEREBRAL INFARCTION WITH CC OR TPA IN 24 HOURS | 065 | $78,662 | $39,331 | — | 13.4x |
| RESPIRATORY SYSTEM DIAGNOSIS WITH VENTILATOR SUPPORT <=96 HOURS | 208 | $201,152 | $100,576 | — | 12.8x |
| SEIZURES WITHOUT MCC | 101 | $53,699 | $26,850 | — | 12.7x |
| ACUTE MYOCARDIAL INFARCTION, DISCHARGED ALIVE WITH CC | 281 | $60,382 | $30,191 | — | 12.6x |
| GASTROINTESTINAL HEMORRHAGE WITH CC | 378 | $64,306 | $32,153 | — | 12.5x |
| SEPTICEMIA OR SEVERE SEPSIS WITHOUT MV >96 HOURS WITHOUT MCC | 872 | $71,469 | $35,735 | — | 12.4x |
| CARDIAC ARRHYTHMIA AND CONDUCTION DISORDERS WITH CC | 309 | $50,503 | $25,252 | — | 12.3x |
| MAJOR SMALL AND LARGE BOWEL PROCEDURES WITH CC | 330 | $137,376 | $68,688 | — | 12.3x |
| INTRACRANIAL HEMORRHAGE OR CEREBRAL INFARCTION WITH MCC | 064 | $141,532 | $70,766 | — | 12.3x |
| KIDNEY AND URINARY TRACT INFECTIONS WITH MCC | 689 | $85,086 | $42,543 | — | 12.1x |
| MEDICAL BACK PROBLEMS WITHOUT MCC | 552 | $70,798 | $35,399 | — | 12x |
| MEDICAL BACK PROBLEMS WITH MCC | 551 | $124,647 | $62,324 | — | 12x |
| SEIZURES WITH MCC | 100 | $146,277 | $73,138 | — | 11.9x |
| SYNCOPE AND COLLAPSE | 312 | $58,397 | $29,199 | — | 11.8x |
| HIP AND FEMUR PROCEDURES EXCEPT MAJOR JOINT WITHOUT CC/MCC | 482 | $112,192 | $56,096 | — | 11.6x |
| HEART FAILURE AND SHOCK WITH MCC | 291 | $89,059 | $44,530 | — | 11.6x |
| HIP AND FEMUR PROCEDURES EXCEPT MAJOR JOINT WITH CC | 481 | $139,763 | $69,881 | — | 11.4x |
| RENAL FAILURE WITH CC | 683 | $60,724 | $30,362 | — | 11.4x |
| CRANIOTOMY AND ENDOVASCULAR INTRACRANIAL PROCEDURES WITH MCC | 025 | $318,599 | $159,300 | — | 11.1x |
| ACUTE MYOCARDIAL INFARCTION, DISCHARGED ALIVE WITH MCC | 280 | $110,863 | $55,432 | — | 11x |
| BIOPSIES OF MUSCULOSKELETAL SYSTEM AND CONNECTIVE TISSUE WITH CC | 478 | $159,634 | $79,817 | — | 11x |
| HIP AND FEMUR PROCEDURES EXCEPT MAJOR JOINT WITH MCC | 480 | $192,101 | $96,050 | — | 10.8x |
| MAJOR SMALL AND LARGE BOWEL PROCEDURES WITH MCC | 329 | $252,350 | $126,175 | — | 10.8x |
| INFECTIOUS AND PARASITIC DISEASES WITH O.R. PROCEDURES WITH MCC | 853 | $301,885 | $150,943 | — | 10.8x |
| LIMB REATTACHMENT, HIP AND FEMUR PROCEDURES FOR MULTIPLE SIGNIFICANT TRAUMA | 956 | $283,076 | $141,538 | — | 10.8x |
| OTHER KIDNEY AND URINARY TRACT DIAGNOSES WITH MCC | 698 | $104,376 | $52,188 | — | 10.5x |
| SEPTICEMIA OR SEVERE SEPSIS WITHOUT MV >96 HOURS WITH MCC | 871 | $118,628 | $59,314 | — | 10.2x |
| O.R. PROCEDURES FOR OBESITY WITHOUT CC/MCC | 621 | $84,269 | $42,134 | — | 10.1x |
| SIMPLE PNEUMONIA AND PLEURISY WITH MCC | 193 | $74,088 | $37,044 | — | 9.8x |
| CIRCULATORY DISORDERS EXCEPT AMI, WITH CARDIAC CATHETERIZATION WITH MCC | 286 | $124,026 | $62,013 | — | 9.5x |
| PULMONARY EDEMA AND RESPIRATORY FAILURE | 189 | $73,163 | $36,581 | — | 9.5x |
| TRAUMATIC STUPOR AND COMA <1 HOUR WITH CC | 086 | $71,276 | $35,638 | — | 9.4x |
| DIABETES WITH MCC | 637 | $77,776 | $38,888 | — | 9.4x |
| RESPIRATORY INFECTIONS AND INFLAMMATIONS WITH MCC | 177 | $108,674 | $54,337 | — | 9.4x |
| CELLULITIS WITHOUT MCC | 603 | $43,258 | $21,629 | — | 9.1x |
| RENAL FAILURE WITH MCC | 682 | $83,537 | $41,768 | — | 9.1x |
| ESOPHAGITIS, GASTROENTERITIS AND MISCELLANEOUS DIGESTIVE DISORDERS WITH MCC | 391 | $66,469 | $33,235 | — | 8.5x |
| MISCELLANEOUS DISORDERS OF NUTRITION, METABOLISM, FLUIDS AND ELECTROLYTES WITH MCC | 640 | $62,771 | $31,386 | — | 8.3x |
| DISORDERS OF LIVER EXCEPT MALIGNANCY, CIRRHOSIS OR ALCOHOLIC HEPATITIS WITH MCC | 441 | $56,779 | $28,389 | — | 5.3x |
How ASCENSION SETON WILLIAMSON compares to nearby hospitals
Comparison based on average markup ratios from federal hospital pricing data (FY 2024). Chargemaster rates are gross charges — they are not what most insured patients pay. Actual costs depend on your insurance plan, negotiated rates, and coverage terms. This comparison is for informational purposes only and does not constitute medical, financial, or legal advice. Verify costs directly with your provider and insurer.
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Pricing data from federal hospital transparency files and physician fee schedules. Last updated: . All data is publicly available under federal law.
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Data: Federal hospital pricing data, updated annually. All data publicly available under federal law.
Methodology: Hospital gross charges divided by Medicare payment for the same DRG. A ratio of 3.0x means the hospital's listed price is 3 times what Medicare pays. Chargemaster rates are list prices — they are not what most insured patients pay. Grades measure pricing patterns only — not quality of care or clinical performance.
This information is for educational purposes only and is not medical, financial, or legal advice. Actual costs depend on your insurance and provider. We recommend verifying costs directly with your provider. Full methodology · Terms of use