Fresenius Kidney Care Middleton
Fresenius Kidney Care Middleton is a Medicare-certified dialysis facility in Madison, WI, identified by CMS Certification Number 522630. CMS assigns it a Not yet rated rating. Fonteum publishes provenance-tracked CMS quality data for this facility, each traced to the CMS Care Compare Dialysis dataset (23ew-n7w9).
Fonteum is a US healthcare provenance registry that publishes signed, chain-of-custody-attested research and data pages on Medicare, Medicaid, and federal regulator datasets, drawing from 23 federal source families across CMS, OIG, HRSA, AHRQ, and HHS.
Data last updated: 2026-05-07 · Source: CMS Care Compare Dialysis Facility (23ew-n7w9) · View on Medicare.gov
What quality data does CMS publish for Fresenius Kidney Care Middleton?
Fonteum publishes CMS Care Compare quality data for Fresenius Kidney Care Middleton, each field traced to the CMS Care Compare Dialysis dataset (23ew-n7w9) and its reporting period.
How does Fonteum cover dialysis facility quality data?
Fonteum indexes quality data from 23 federal source families, including all six CMS Care Compare facility programs. Each CCN is keyed to its primary CMS dataset — every field traced to a source row and reporting period.
CMS Care Compare · 6 facility types · data.cms.gov · US Government Work
How does Fonteum connect this dialysis facility to its sources?
Fresenius Kidney Care Middleton (CCN 522630) is identified across CMS Care Compare Dialysis Facility (23ew-n7w9) published on data.cms.gov. Every field on this page is chained to its source dataset and row.
How is this dialysis facility’s data sourced and attested?
Each field on this page is sourced from the CMS Care Compare Dialysis Facility (23ew-n7w9) published on data.cms.gov — a US Government Work. Fonteum re-publishes each value with a provenance record identifying the federal source, release date, and redistribution basis.
- Source acquisition — download the CMS Care Compare Dialysis Facility (23ew-n7w9) file from data.cms.gov.
- Entity resolution — key every row to the dialysis facility’s CMS Certification Number (CCN 522630).
- Field projection — extract the fields shown on this page.
- Quality checks — drop rows CMS suppresses or marks not available.
- Chain attestation — sign each field into the Fonteum provenance graph.
Read the full Fonteum provenance methodology or browse the 23 federal source families behind every page.
Which CMS datasets back this page?
- CMS Care Compare Dialysis Facility (23ew-n7w9) · archived copyCenters for Medicare & Medicaid Services · US Government Work
- Medicare.gov Care Compare — Fresenius Kidney Care MiddletonCenters for Medicare & Medicaid Services · US Government Work
Frequently asked questions
- What is the CMS 5-star rating for Fresenius Kidney Care Middleton?
- CMS has not published a 5-star rating for Fresenius Kidney Care Middleton in the current Care Compare snapshot. A rating is assigned only when a facility reports enough quality measures to be scored, so some facilities are unrated.
- Is Fresenius Kidney Care Middleton chain-owned?
- Yes. Fresenius Kidney Care Middleton is chain-owned, affiliated with Fresenius Medical Care. Chain affiliation is reported to CMS and published in the Care Compare Dialysis dataset (23ew-n7w9).
- What dialysis services does Fresenius Kidney Care Middleton offer?
- Fresenius Kidney Care Middleton offers the following dialysis services: in-center hemodialysis. Service availability is reported by the facility to CMS and published in the CMS Care Compare Dialysis dataset.
- What is CMS Certification Number 522630?
- The CMS Certification Number (CCN) 522630 is the federal identifier Medicare assigns to Fresenius Kidney Care Middleton in Madison, WI. It is unique, federally issued, and links this facility across CMS datasets — including Care Compare, Provider of Services, and cost reports — which is how Fonteum joins Fresenius Kidney Care Middleton's records.
Related facilities and datasets
Fresenius Kidney Care Middleton is a Medicare-certified dialysis facility identified by CMS Certification Number 522630. Data sourced from the CMS Care Compare Dialysis Facility (23ew-n7w9) (data.cms.gov), a US Government Work. Methodology · Report an error · Medicare.gov