Overview
Steven Johnson is a Cardiologist in Greenville, South Carolina. Dr. Johnson is rated as an Experienced provider by MediFind in the treatment of Timothy Syndrome. His top areas of expertise are Atrial Fibrillation, Heart Failure, Pulmonary Edema, and Hypertension.
Insurance
Accepted insurance can change. Please verify directly with the provider.
Accepted insurance plans:
- EPO
- HMO
- POS
- PPO
- EPO
- HMO
- POS
- PPO
- EPO
- HMO
- POS
- PPO
Locations
2 Innovation Dr Ste 400, Greenville, SC 29607
Prisma Health Carolina Cardiology Consultants – Easley
Adam Barnett is a Cardiologist in Easley, South Carolina. Dr. Barnett is rated as an Advanced provider by MediFind in the treatment of Timothy Syndrome. His top areas of expertise are Timothy Syndrome, Ectopic Heartbeat, Ventricular Fibrillation, Cardiac Ablation, and Pacemaker Implantation. Dr. Barnett is currently accepting new patients.
Asheville Cardiology Associates
Michael Unks, MD, specializes in cardiology and is board-certified in cardiovascular disease by the American Board of Internal Medicine. He is affiliated with UPMC Kane, UPMC Horizon, UPMC Jameson, UPMC Northwest and UPMC Hamot. Dr. Unks completed his cardiology fellowship and internal medicine residency at Duke University Medical Center in Durham, NC, and medical degree from the University of Pittsburgh School of Medicine. A native of Fairview, Pa, Dr. Unks is happy to return to the Erie region to care for patients. Dr. Unks is rated as an Advanced provider by MediFind in the treatment of Timothy Syndrome. His top areas of expertise are Atrial Fibrillation, Heart Attack, Pediatric Myocarditis, Aortic Regurgitation, and Pacemaker Implantation.
Bon Secours Medical Group Greenville Specialty Care LLC
Matthew Nessmith is a Cardiologist in Greenville, South Carolina. Dr. Nessmith is rated as an Advanced provider by MediFind in the treatment of Timothy Syndrome. His top areas of expertise are Angina, Atrial Fibrillation, Aortic Valve Stenosis, Aortic Valve Replacement, and Transcatheter Aortic Valve Replacement (TAVR). Dr. Nessmith is currently accepting new patients.
Areas of Expertise
MediFind evaluates expertise by pulling from factors such as number of articles a doctor has published in medical journals, participation in clinical trials, speaking at industry conferences, prescribing and referral patterns, and strength of connections with other experts in their field.
Learn more about MediFind’s expert tiers
- Advanced
- Atrial FibrillationDr. Johnson isAdvanced. Learn about Atrial Fibrillation.
- Experienced
- AnginaDr. Johnson isExperienced. Learn about Angina.
- Aortic Valve StenosisDr. Johnson isExperienced. Learn about Aortic Valve Stenosis.
- ApoplexyDr. Johnson isExperienced. Learn about Apoplexy.
- ArrhythmiasDr. Johnson isExperienced. Learn about Arrhythmias.
- Arrhythmogenic Right Ventricular Cardiomyopathy
- Arterial EmbolismDr. Johnson isExperienced. Learn about Arterial Embolism.

