CMS Certification Number 523519
MAYO CLINIC DIALYSIS - ONALASKA
191 THEATRE ROAD, ONALASKA, WI 54650
Facility contact actions
Directions use the published street address, not coordinates. CMS source · fetched
Official facts
Values below come from the linked CMS facility record. Fields that are absent from this site's baked record are omitted or marked without making claims about what CMS publishes.
Facility complaints
Complaints about this facility are handled by Quality Insights, phone 844-238-1190.
CMS source · fetched CMS ESRD Network directory · fetched Network phone source · fetchedQuality measures
Every value is shown with its CMS measurement context. CMS category and direction text appear only where CMS publishes them; KidneyPass adds no clinical interpretation.
- Mortality Rate (Facility)
16 per 100 patient-years
CMS category: As Expected
National average: 22.2 per 100 patient-years
Measurement period: Jan 1, 2021–Dec 31, 2024
Denominator: 297
CMS confidence interval: 10.5–25.3
CMS-published direction: Lower values are better
CMS source · fetched CMS national benchmark source · fetched- Hospitalization Rate (Facility)
150.3 per 100 patient-years
CMS category: As Expected
National average: 148 per 100 patient-years
Measurement period: Jan 1, 2024–Dec 31, 2024
Denominator: 77
CMS confidence interval: 101–235.3
CMS-published direction: Lower values are better
CMS source · fetched CMS national benchmark source · fetched- Readmission Rate (Facility)
22.2 % of hospital discharges
CMS category: As Expected
National average: 27.2 % of hospital discharges
Measurement period: Jan 1, 2024–Dec 31, 2024
Denominator: 84
CMS confidence interval: 14–33
CMS-published direction: Lower values are better
CMS source · fetched CMS national benchmark source · fetched- Transfusion Rate (Facility)
37 per 100 patient-years
CMS category: As Expected
National average: 32.5 per 100 patient-years
Measurement period: Jan 1, 2024–Dec 31, 2024
Denominator: 40
CMS confidence interval: 18.3–93.5
CMS-published direction: Lower values are better
CMS source · fetched CMS national benchmark source · fetched- First Year Standardized Kidney Transplant Waitlist Ratio
1.62 standardized ratio
CMS category: As Expected
National average: 1 standardized ratio
Measurement period: Jan 1, 2021–Dec 31, 2023
Denominator: 33
CMS confidence interval: 0.44–4.15
CMS-published direction: Higher values are better
CMS source · fetched CMS national benchmark source · fetched- Percentage of Prevalent Patients Waitlisted for Kidney Transplant
17.6 % of prevalent patients
CMS category: As Expected
National average: 16.5 % of prevalent patients
Measurement period: Oct 1, 2024–Sep 30, 2025
Denominator: 68
CMS confidence interval: 6.7–38.8
CMS-published direction: Higher values are better
CMS source · fetched CMS national benchmark source · fetched- Standardized ED visits ratio (Facility)
2.24 standardized ratio
CMS category: Worse than Expected
National average: 0.99 standardized ratio
Measurement period: Jan 1, 2024–Dec 31, 2024
Denominator: 49
CMS confidence interval: 1.64–3.39
CMS-published direction: Lower values are better
CMS source · fetched CMS national benchmark source · fetched- Standardized ED visits within 30 days of hospital discharge ratio (Facility)
1.69 standardized ratio
CMS category: As Expected
National average: 1.04 standardized ratio
Measurement period: Jan 1, 2023–Dec 31, 2024
Denominator: 90
CMS confidence interval: 0.93–2.73
CMS-published direction: Lower values are better
CMS source · fetched CMS national benchmark source · fetched- SMoSR: Standardized Modality Switch Ratio (FACILITY)
1.49 standardized ratio
CMS category: As Expected
National average: 1 standardized ratio
Measurement period: Jan 1, 2021–Dec 31, 2023
Denominator: 40
CMS confidence interval: 0.55–3.25
CMS-published direction: Higher values are better
CMS source · fetched CMS national benchmark source · fetched- Standard Infection Ratio
1.13 standardized infection ratio
CMS category: As Expected
Measurement period: Jan 1, 2024–Dec 31, 2024
CMS confidence interval: 0.49–2.23
CMS-published direction: Lower values are better
CMS source · fetched- Fistula Rate (Facility)
47.6 % of patient-months
CMS category: As Expected
National average: 57.1 % of patient-months
Measurement period: Oct 1, 2024–Sep 30, 2025
Denominator: 80
CMS confidence interval: 25.6–69.8
CMS-published direction: Higher values are better
CMS source · fetched CMS national benchmark source · fetched- Healthcare worker COVID-19 vaccination adherence percentage
Facility21 % of healthcare personnel
National average4 % of healthcare personnel
Facility21 % of healthcare personnel
WI average4 % of healthcare personnel
Measurement period: Jul 1, 2025–Sep 30, 2025
CMS source · fetched CMS national benchmark source · fetched CMS state benchmark source · fetched- Percent of Adult HD patients with Kt/V >= 1.2
Facility98 % of adult HD patients
National average97 % of adult HD patients
Facility98 % of adult HD patients
WI average97 % of adult HD patients
Measurement period: Oct 1, 2024–Sep 30, 2025
Denominator: 73
CMS source · fetched CMS national benchmark source · fetched CMS state benchmark source · fetched- Percentage of Adult PD PTS with Kt/V >= 1.7
Facility75 % of adult PD patients
National average92 % of adult PD patients
Facility75 % of adult PD patients
WI average91 % of adult PD patients
Measurement period: Oct 1, 2024–Sep 30, 2025
Denominator: 13
CMS source · fetched CMS national benchmark source · fetched CMS state benchmark source · fetched- Percentage of Medicare patients with Hgb<10 g/dL
Facility33 % of Medicare patients
National average21 % of Medicare patients
Facility33 % of Medicare patients
WI average18 % of Medicare patients
Measurement period: Oct 1, 2024–Sep 30, 2025
Denominator: 30
CMS source · fetched CMS national benchmark source · fetched CMS state benchmark source · fetched- Percentage of Medicare patients with Hgb>12 g/dL
Facility0 % of Medicare patients
National average1 % of Medicare patients
Facility0 % of Medicare patients
WI average0 % of Medicare patients
Measurement period: Oct 1, 2024–Sep 30, 2025
Denominator: 30
CMS source · fetched CMS national benchmark source · fetched CMS state benchmark source · fetched- Percentage of Adult patients with hypercalcemia (serum calcium greater than 10.2 mg/dL)
Facility1 % of adult patients
National average1 % of adult patients
Facility1 % of adult patients
WI average1 % of adult patients
Measurement period: Oct 1, 2024–Sep 30, 2025
Denominator: 89
CMS source · fetched CMS national benchmark source · fetched CMS state benchmark source · fetched- Percentage of Adult patients with serum phosphorus less than 3.5 mg/dL
Facility6 % of adult patients
National average7 % of adult patients
Facility6 % of adult patients
WI average7 % of adult patients
Measurement period: Oct 1, 2024–Sep 30, 2025
Denominator: 91
CMS source · fetched CMS national benchmark source · fetched CMS state benchmark source · fetched- Percentage of Adult patients with serum phosphorus between 3.5-4.5 mg/dL
Facility26 % of adult patients
National average22 % of adult patients
Facility26 % of adult patients
WI average22 % of adult patients
Measurement period: Oct 1, 2024–Sep 30, 2025
Denominator: 91
CMS source · fetched CMS national benchmark source · fetched CMS state benchmark source · fetched- Percentage of Adult patients with serum phosphorus between 4.6-5.5 mg/dL
Facility33 % of adult patients
National average27 % of adult patients
Facility33 % of adult patients
WI average27 % of adult patients
Measurement period: Oct 1, 2024–Sep 30, 2025
Denominator: 91
CMS source · fetched CMS national benchmark source · fetched CMS state benchmark source · fetched- Percentage of Adult patients with serum phosphorus between 5.6-7.0 mg/dL
Facility23 % of adult patients
National average26 % of adult patients
Facility23 % of adult patients
WI average27 % of adult patients
Measurement period: Oct 1, 2024–Sep 30, 2025
Denominator: 91
CMS source · fetched CMS national benchmark source · fetched CMS state benchmark source · fetched- Percentage of Adult patients with serum phosphorus greater than 7.0 mg/dL
Facility12 % of adult patients
National average18 % of adult patients
Facility12 % of adult patients
WI average18 % of adult patients
Measurement period: Oct 1, 2024–Sep 30, 2025
Denominator: 91
CMS source · fetched CMS national benchmark source · fetched CMS state benchmark source · fetched- Percentage of Adult patients with long term catheter in use
Facility40 % of adult patients
National average19 % of adult patients
Facility40 % of adult patients
WI average23 % of adult patients
Measurement period: Oct 1, 2024–Sep 30, 2025
Denominator: 80
CMS source · fetched CMS national benchmark source · fetched CMS state benchmark source · fetched
Medicare payment program
Medicare reduced this facility's 2026 payments by 1% based on 2024 performance.
CMS ESRD QIP source · fetchedPatient experience
ICH CAHPS patient-survey scores are shown with the number of completed surveys behind every score. Survey period: 18Oct2024-11Jul2025.
CMS ICH CAHPS source · fetched- Nephrologists’ communication and caring
Top-box score: 72% · 31 completed surveys
Linearized score: 85 · 31 completed surveys
CMS ICH CAHPS source · fetched- Dialysis center care and operations
Top-box score: 74% · 31 completed surveys
Linearized score: 88 · 31 completed surveys
CMS ICH CAHPS source · fetched- Providing information to patients
Top-box score: 78% · 31 completed surveys
Linearized score: 78 · 31 completed surveys
CMS ICH CAHPS source · fetched- Rating of nephrologist
Top-box score: 64% · 31 completed surveys
Linearized score: 83 · 31 completed surveys
CMS ICH CAHPS source · fetched- Rating of dialysis center staff
Top-box score: 78% · 31 completed surveys
Linearized score: 92 · 31 completed surveys
CMS ICH CAHPS source · fetched- Rating of dialysis facility
Top-box score: 86% · 31 completed surveys
Linearized score: 94 · 31 completed surveys
CMS ICH CAHPS source · fetched
What these Medicare figures mean
Medicare's base payment rate for one dialysis session.
$281.71 per session — 2026 Medicare base rate
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The coinsurance patients with Original Medicare pay for dialysis services after the Part B deductible.
20% of the Medicare-approved amount after the Part B deductible
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This information is for reference only and is not a substitute for professional medical or insurance advice.