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Acute care hospital Emergency room

Mercy Health Kings Mills Hospital LLC in Mason, OH

Also known as Mercy Health – Kings Mills Hospital, Kings Mills Hospital

Directions (513) 637-9999

In a medical emergency, call 911. This page is for information only.

Overview

About Mercy Health Kings Mills Hospital LLC

Mercy Health Kings Mills Hospital LLC is an acute care hospital in Mason, Warren County, Ohio. It reports its ownership to Medicare as nonprofit (private). It provides emergency services. It does not currently have a CMS Overall Star Rating, which usually means it reports too few measures to be rated. It has 60 licensed beds, according to state license data via HIFLD. The nearest other listed hospital is Lindner Center of Hope, about 2.3 mi away.

CMS Care Compare

Quality ratings

N/A
Not rated: too few measures reported

How this hospital compares with the national rate on each measure group:

Mortality
1 no different
Deaths within 30 days for conditions such as heart attack, heart failure, pneumonia and stroke.
Safety of care
1 no different
Infections and complications acquired in the hospital.
Readmission
1 no different
Unplanned returns to the hospital after discharge.

Source: Centers for Medicare & Medicaid Services, Hospital General Information. How star ratings work.

Emergency department

Emergency room times

134 min
Median time in the ER before leaving (OP-18b)
0.0%
Left before being seen (OP-22)
low
Emergency department volume

Lower times are better. Reporting period ending September 2025. Source: CMS Timely and Effective Care. What these numbers mean.

Safety of care

Infections and sepsis care

  • Clostridioides difficile (C. diff) infectionsNo different · SIR 0.41

74% of patients with severe sepsis or septic shock received all the recommended early care steps (SEP-1). Higher is better.

SIR is the standardized infection ratio: below 1 means fewer infections than predicted for a hospital like this one. Period ending September 2025. Source: CMS Healthcare-Associated Infections and Timely and Effective Care.

HCAHPS survey

What patients say

  • Patient survey star rating
  • Would definitely recommend76%
  • Rated the hospital 9 or 1078%
  • Completed surveys341

Survey period ending September 2025. Source: CMS HCAHPS Patient Survey.

Map

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39.35628, -84.25846

Within 25 miles

Nearby hospitals

Frequently asked questions

Where is Mercy Health Kings Mills Hospital LLC located?

Mercy Health Kings Mills Hospital LLC is at 5440 Kings Island Drive, Mason, OH 45040 in Warren County.

Does Mercy Health Kings Mills Hospital LLC have an emergency room?

Yes. Mercy Health Kings Mills Hospital LLC reports emergency services to Medicare, and patients spent a median of 134 minutes in its emergency department before leaving. In a life-threatening emergency, call 911.

What is the CMS star rating of Mercy Health Kings Mills Hospital LLC?

Mercy Health Kings Mills Hospital LLC does not have a current CMS Overall Star Rating. CMS only rates hospitals that report enough measures; critical access, psychiatric, VA and many small hospitals are often unrated, which says nothing about their quality.

Is Mercy Health Kings Mills Hospital LLC a trauma center?

We have no trauma center designation on record for Mercy Health Kings Mills Hospital LLC. Hospitals without one still treat injuries in their emergency department and transfer patients who need a trauma center. Check the Ohio trauma program for the current list.

What is the phone number of Mercy Health Kings Mills Hospital LLC?

The main phone number on record with Medicare is (513) 637-9999.

Would patients recommend Mercy Health Kings Mills Hospital LLC?

In the most recent HCAHPS patient survey (341 completed surveys), 76% of patients said they would definitely recommend the hospital, and 78% rated it 9 or 10 out of 10.

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