About Us

Renowned orthopedic surgeon and inventor Thomas Coon, MD, founded the Coon Joint Replacement Institute at Adventist Health St. Helena in 2009.

The strength of our reputation and the serenity of our location in Napa Valley has made Coon Joint Replacement Institute a premier destination for knee and hip replacements. Today, more than 60% of our patients choose to travel more than 100 miles to receive their care here.

Learn why so many people across California and beyond trust us to perform their joint replacement surgery. And learn how the care we provide inspires health, wholeness and hope.

Safe, sophisticated joint replacement procedures

Joint replacement surgery used to involve long hospital stays and recovery times. Today, it’s safer and less invasive than ever before, with minimal down time. Groundbreaking advances in implant design, surgical techniques and robotic technology have transformed the experience.

Many of those breakthroughs have been pioneered and perfected right here at the Coon Joint Replacement Institute. These innovations include MAKOplasty^® partial and total knee replacements. Our orthopedic surgeons are often among the first in the region or U.S. to offer the latest evidence-based procedures.

Nationally recognized care in Napa Valley

When you’re considering surgery, it’s important to choose an experienced surgical team and a hospital known for safety.

Our highly trained and talented team performs more than 1,200 surgeries annually, which makes us one of the highest-volume centers in California.

Just as important, our national accolades for high-quality care and patient satisfaction give you added confidence your care meets the highest standards. Adventist Health St. Helena (previously known as St. Helena Hospital) is consistently named one of the “100 hospitals and health systems with great orthopedic programs” by Becker’s Healthcare. We’re also ranked by Healthgrades among the top 1% of hospitals nationwide for patient experience.

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