Mariners Hospital in Tavernier, FL
In a medical emergency, call 911. This page is for information only.
About Mariners Hospital
Mariners Hospital is a critical access hospital in Tavernier, Monroe County, Florida. It reports its ownership to Medicare as nonprofit (private). It provides emergency services. Its CMS Overall Hospital Quality Star Rating is 5 out of 5. It has 25 licensed beds, according to state license data via HIFLD.
Quality ratings
How this hospital compares with the national rate on each measure group:
Source: Centers for Medicare & Medicaid Services, Hospital General Information. How star ratings work.
Emergency room times
Lower times are better. Reporting period ending September 2025. Source: CMS Timely and Effective Care. What these numbers mean.
What patients say
- Would definitely recommend88%
- Rated the hospital 9 or 1091%
- Completed surveys68
Survey period ending September 2025. Source: CMS HCAHPS Patient Survey.
Map
25.00555, -80.52124
Frequently asked questions
Where is Mariners Hospital located?
Mariners Hospital is at 91500 Overseas Highway, Tavernier, FL 33070 in Monroe County.
Does Mariners Hospital have an emergency room?
Yes. Mariners Hospital reports emergency services to Medicare, and patients spent a median of 118 minutes in its emergency department before leaving. In a life-threatening emergency, call 911.
What is the CMS star rating of Mariners Hospital?
Mariners Hospital has a CMS Overall Hospital Quality Star Rating of 5 out of 5. The rating combines measures of mortality, safety of care, readmission, patient experience and timely and effective care, compared with hospitals nationwide.
Is Mariners Hospital a trauma center?
We have no trauma center designation on record for Mariners Hospital. Hospitals without one still treat injuries in their emergency department and transfer patients who need a trauma center. Check the Florida trauma program for the current list.
What is the phone number of Mariners Hospital?
The main phone number on record with Medicare is (305) 434-3000.
Would patients recommend Mariners Hospital?
In the most recent HCAHPS patient survey (68 completed surveys), 88% of patients said they would definitely recommend the hospital, and 91% rated it 9 or 10 out of 10.
Related guides
- How CMS Hospital Star Ratings WorkThe five measure groups behind the 1 to 5 star Overall Hospital Quality Star Rating, how it is calculated and what it leaves out.
- How to Choose a HospitalA practical checklist for planned care: insurance networks, procedure volume, quality ratings, certifications and cost estimates.
- How to Read a Hospital BillItemized bills, EOBs and billing codes explained, plus No Surprises Act protections and a step-by-step way to check for errors.
- What Is the HCAHPS Patient Survey?How the national hospital patient experience survey works, what it asks, how results appear on Care Compare and what they do not show.