About the Hospital Quality Lookup
Medicare grades nearly every US hospital — on death rates, safety events, readmissions, and patient experience — and publishes it all in Care Compare, a dataset most people have never successfully navigated. This tool surfaces the numbers that matter at the moment you actually choose a hospital: the official overall star rating and, underneath it, how each facility’s mortality, safety, and readmission measures stack against the national benchmark.
Enter a ZIP and you get the surrounding metro’s hospitals ranked best-first — useful before a scheduled surgery, when relocating, choosing where to deliver a baby (the birthing-friendly badge), or deciding which ER is worth an extra ten minutes of driving when it isn’t a call-911 emergency. The Pro tier adds side-by-side comparison, saved shortlists, and a “questions to ask” list generated from each hospital’s weak measures.
Data comes from the CMS Provider Data Catalog (the source behind Medicare.gov), synced weekly; nothing you search is stored. Quality data informs the conversation — treatment decisions belong with your physicians.
Pick a hospital card’s “Questions” button and this panel turns its below-benchmark measures into the specific questions worth asking at a pre-op or tour.
How to Use the Hospital Quality Lookup
Enter a ZIP (the search covers the surrounding metro, since a single ZIP rarely holds more than one hospital) or a city and state. Hospitals list best-rated first; each card carries the official CMS star rating and a three-row snapshot showing whether the hospital’s mortality, safety, and readmission measures run better than, level with, or worse than the national benchmark. When you are choosing between two finalists, the Pro comparison lays them side by side, and the question generator turns any weak spots into the specific things to ask.
What Actually Goes Into a Star Rating
CMS folds dozens of publicly reported measures into five domains — mortality (22% weight), safety of care (22%), readmission (22%), patient experience (22%), and timely & effective care (12%) — then assigns stars by comparing each hospital’s summary score to its peer group. The distribution is deliberately bell-shaped: only around one hospital in seven earns 5 stars, and a similar share sits at 1–2. That makes the rating a genuine screen — but the domains are where decisions live. A hospital can post average stars while running better-than-benchmark mortality, which for major surgery is the row you care about most.
Volume: The Quality Signal the Stars Don’t Show
Decades of research supports a blunt rule: for complex procedures, hospitals and surgeons that do more of them get better outcomes. The effect is largest for cardiac surgery, cancer resections, and joint replacements done at high-volume centers. Star ratings don’t encode volume, so pair this tool’s screen with one question to the surgeon: “How many of these do you and this hospital do a year?” A 4-star hospital doing 300 of your procedure annually usually beats a 5-star hospital doing 15.
Emergencies vs Scheduled Care: Two Different Decisions
For a true emergency the answer is always the nearest ER or 911 — minutes dominate every quality statistic. Where this data earns its keep is scheduled care: elective surgery, childbirth, imaging, a second opinion. Those decisions have lead time, and lead time is when a readmission rate or a safety record should influence where you book. The birthing-friendly badge (CMS’s maternity-care designation) is a similar planning signal: it reflects participation in structured maternal-care quality improvement, worth weighing alongside where your OB has privileges.
Reading “Worse Than Benchmark” Fairly
A worse-than-national flag is a prompt, not a verdict. Academic referral centers absorb the region’s sickest patients and can post elevated readmissions despite excellent care; CMS risk-adjusts, but imperfectly. The productive response is the specific question: for a below-benchmark safety group, ask about infection rates for your procedure; for readmissions, ask what discharge follow-up looks like in the first 30 days. Hospitals with good answers have them ready — the absence of a ready answer is itself information.
Preparing for a hospital stint? The Medication Side Effect Explorer covers the prescriptions that follow, and the Blood Pressure Calculator the numbers you track after. Browse all Health & Fitness tools for more.
Frequently Asked Questions
What does the CMS overall star rating actually measure?
Medicare summarizes up to 40+ quality measures into one 1-to-5-star score across five domains: mortality, safety of care, readmission, patient experience, and timely/effective care. About the middle third of US hospitals land at 3 stars. It is the best single consumer number available, but it is a summary — always look at the domain that matters for your situation.
Is a 5-star hospital always the right choice?
Not automatically. The overall rating weights mortality and safety most, but a 3-star hospital can be excellent at the specific thing you need — and academic medical centers treating the sickest patients sometimes rate lower on readmissions for reasons unrelated to quality. Use the star as a screen, the group detail for the tiebreak, and your physician's experience for the decision.
Why does my small local hospital show no star rating?
CMS only publishes a rating when a hospital reports enough cases across enough measure groups — small and critical-access hospitals often fall below those thresholds. No rating means insufficient data, not poor quality. For rural hospitals, the practical questions are ER capability and which conditions get transferred to larger centers.
What are readmission rates and why do they matter?
The share of Medicare patients back in a hospital within 30 days of discharge — a proxy for how well the hospital manages the full episode: discharge planning, medication reconciliation, follow-up. A hospital performing worse than the national rate on readmissions is a fair prompt to ask how discharge support works for your procedure.
Does this data cover every hospital?
It covers the roughly 5,000 Medicare-certified short-term acute care and critical access hospitals — which is nearly every general hospital in the US. VA facilities, children's hospitals, and some specialty hospitals report differently and may be missing. Ratings refresh on CMS's quarterly cycle, and this tool re-syncs weekly. Data informs the conversation; treatment decisions belong with your care team.
