Two Locations

Greeneville & Johnson City

Call Us

(423) 588-5660

Meet Our Provider

Get to know our team at Trinity Heart and Vascular Group.

Daniel O'Roark, DO, FACC

Dr. O’Roark is a 1984 graduate of Philadelphia College of Osteopathic Medicine. He completed an internal medicine residency in 1987 at Grandview Hospital and Medical Center in Dayton, OH, and completed a cardiology Fellowship in 1989 at St. Francis Medical Center in Pittsburgh, PA.

Dr. O’Roark holds board certifications in internal medicine, cardiovascular diseases, echocardiography (cardiac ultrasound), and nuclear cardiology.

He has clinically directed and overseen the accreditation of two busy nuclear cardiology labs in his 30+ years of cardiology practice experience.

Dr. O’Roark is a Fellow of the American College of Cardiology, and is licensed to practice medicine in Tennessee and Virginia.

Dr. O’Roark serves both of our office locations in Greeneville, TN and Johnson City, TN.

How We Work

Delivering Excellent Cardiac Care

Our mission to is to provide comprehensive and exceptional services for your heart-related health needs. What’s more is that we strive to provide those services at prices that reflect a fair-market value. Find out if our practice is a good fit for you by reading about our unique approach to cardiovascular care.