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Lonnie T. Sullivan II
Cone Health Medical Group

Lonnie T. Sullivan II, MD

Specialties

  • Non-Invasive Cardiology,
  • Cardiology
Patient Rating
4.9/5 (Based on 89 Reviews)
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Biography

Lonnie T. Sullivan II, MD, specializes in cardiology with professional interests in non-invasive cardiology and advanced cardiovascular imaging. He is board certified in echocardiography, nuclear cardiology, cardiac magnetic resonance imaging (MRI), internal medicine and cardiovascular disease.

Genuinely invested in the lives and health outcomes of patients who entrust him with their care, he is known for his ability to combine clinical expertise with an understanding of each person’s unique circumstances and goals to ensure care goes beyond treating disease alone. His philosophy centers on building authentic relationships and tailoring treatment plans to meet the specific needs of every patient.

Outside of work, he enjoys spending quality time with his wife and children and watching sports.

“My patient relationships are akin to a captain and co-captain. I want patients to be integral to the shared decision-making process and feel empowered to help ‘steer the ship’ of their care.” – Lonnie T. Sullivan II, MD 

Profile

Education

Medical School

Duke University School of Medicine

Undergraduate

Morehouse College, BS, Biology

Residency

Duke University Medical Center, Internal Medicine, Chief Resident

Fellowship

Duke University Medical Center, General Cardiovascular

Board Certifications

  • Echocardiography
  • Nuclear Cardiology
  • Cardiac MRI

  • Internal Medicine

  • Cardiovascular Disease

Locations

Provider Review Comments

November 26, 2025
Exceptional explanations of upcoming studies and options after that.
November 23, 2025
Very good experience and atmosphere
November 20, 2025
Everything was great
November 20, 2025
It was a pleasure to have a doctor who was kind, listened, educated made me confident he was going to get me feeling better. He contacted me immediately with results and treatment plan. I already feel better and my mind is finally at ease. Dr. Lonnie Sullivan is the best.
November 17, 2025
Everyone was friendly and very helpful
November 09, 2025
Dr. Sullivan was excellent in every respect.
November 03, 2025
Dr Sullivan was personable. He listened and did not make me feel rushed. He exhibited care and concern for my wellbeing.
November 01, 2025
Very Thorough, professional, and concerning
September 28, 2025
Dr Stevenson was very knowledgeable about my condition and went over my symptoms and prescribed the best medication to take going forward. I have completed confidence in his diagnosis and prescribed treatment.
September 27, 2025
I loved Dr. Sullivan. This was my first visit with him. He was professional yet very personable and friendly. I have no further needs to see him but I will definitely keep his name for any future needs.
September 19, 2025
Most Definitely will Highly recommend Everyone I know to come to yalls Establishment
September 16, 2025
Fantastic staff...Dr. Sullivan was a 10+
September 12, 2025
Excellent visit
September 10, 2025
It was a pleasure to work with Dr. Sullivan and his team. He put me at ease because I was quite nervouse because this was my fiirst ever visit to a Cardiologist. He is an excellent listener and explained everything to me in a very easy to udnerstand way. What a great eexperience!
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