Does Willow Rock Center Take Medicare?
Yes — Willow Rock Center in San Leandro, California is a Medicare-participating hospital. It appears in CMS Inpatient Payment files with documented payment data across 9 inpatient procedure types, averaging $33,876 per Medicare stay.
This page answers a common question about U.S. hospital cost and quality data: Does Willow Rock Center Take Medicare?. The answer draws on CMS Inpatient Payment files, CMS Hospital Compare quality measures, and the LakeQuality value rubric that combines both. Each underlying source is linked directly so the reasoning can be verified. Why this matters: U.S. hospital costs and quality vary by an order of magnitude between facilities for the same procedure, and the variation is not random — it correlates with hospital type, ownership, regional payment adjustments, and case mix. Understanding how to read the public CMS data is the difference between a defensible hospital choice and a coin flip.
The detailed answer below covers what the underlying data shows, the limitations of that data (the Medicare numbers do not directly tell you what commercial insurance pays, or what you will pay out of pocket), and how to translate the public numbers into the questions a patient or family actually has when comparing hospitals.
Medicare at a Glance: Willow Rock Center
- Medicare-participating
- Yes
- Emergency department
- Not reported
- Hospital type
- Psychiatric
- Ownership
- Proprietary
- Procedure types reported
- 9
- Avg Medicare payment
- $33,876/stay
Source: CMS Inpatient Payment files and Hospital Compare. Participation status is inferred from CMS payment reporting — confirm benefits with your specific Medicare or Medicare Advantage plan.
What Medicare Covers at Willow Rock Center
Willow Rock Center appears in the CMS Inpatient Payment files, which only include hospitals enrolled in Medicare. That enrollment is what lets Medicare Part A pay for covered inpatient stays here. Across the 9 procedure types it reports, Medicare pays an average of $33,876 per stay, about $12,385 above the California average of $21,491.
Those figures are what Medicare pays the hospital — not what you pay. Under Original Medicare, inpatient (Part A) costs are driven by the annual deductible and benefit-period coinsurance, not by the hospital's billed amount. Willow Rock Center does not report emergency services in CMS data; in an emergency, Medicare covers care at the nearest appropriate facility regardless of network.
If you have Medicare Advantage (Part C) rather than Original Medicare, coverage at Willow Rock Center depends on whether the hospital is in your plan's network — call the number on your plan card to confirm before a scheduled procedure. A Medigap supplement can absorb much of the Part A deductible and coinsurance for Original Medicare enrollees.
Key Data
| Metric | Value |
|---|---|
| CMS Quality Rating | 0/5 |
| Outcome Score | 50/100 |
| Value Grade | F |
| Avg Payment | $33,876 |
| Mortality Better / Worse | 0 / 0 |
| Safety Better / Worse | 0 / 0 |
Frequently Asked Questions
Yes. Willow Rock Center is a Medicare-participating hospital — it reports payment data to the CMS Inpatient Payment files, which means Medicare covers eligible inpatient and outpatient services there. The data on this page reflects average Medicare payments for inpatient stays; your actual out-of-pocket cost depends on your specific Medicare plan, any supplemental (Medigap) coverage, and the procedure.
According to CMS data, Willow Rock Center does not report emergency services. For an emergency, Medicare covers care at the nearest appropriate facility regardless of network status.
Willow Rock Center averages $33,876 per Medicare inpatient stay across the 9 procedure types it reports — above the California average of $21,491 and above the national average of $15,878. This is what Medicare pays, not your copay — Part A inpatient costs are governed by the annual deductible and benefit-period rules.
Willow Rock Center has a CMS quality rating of 0/5 and an Outcome Score of 50/100. Mortality outcomes are at the national average.
Willow Rock Center's average procedure payment of $33,876 is $12,385 above the California state average of $21,491, and $17,998 above the national average of $15,878.
More about Willow Rock Center
Yes — Willow Rock Center in San Leandro, California is a Medicare-participating hospital. It appears in CMS Inpatient Payment files with documented payment data across 9 inpatient procedure types, averaging $33,876 per Medicare stay.
Source: CMS Hospital Price Transparency, 2026.