MediFind found 5 doctor with experience in Atrial Fibrillation near Mercedes, TX. Of these, 5 are Experienced.
Office
Gerard O'callaghan is a Cardiologist in Weslaco,, Texas. Dr. O'callaghan is rated as an Experienced provider by MediFind in the treatment of Atrial Fibrillation. His top areas of expertise are Atherosclerosis, Coronary Heart Disease, Angina, and Cardiomyopathy.
Rio Grande Valley Adult And Internal Medicine Specialists PLLC
Pedro Mcdougal is a primary care provider, practicing in Geriatrics and Internal Medicine in Weslaco, Texas. Dr. Mcdougal is rated as an Experienced provider by MediFind in the treatment of Atrial Fibrillation. His top areas of expertise are Hypertensive Heart Disease, Pediatric Myocarditis, Enlarged Liver, and Peptic Ulcer. Dr. Mcdougal is currently accepting new patients.
Harlingen Medical Center
Miguel Zabalgoitia is a Cardiologist in Harlingen,, Texas. Dr. Zabalgoitia is rated as an Experienced provider by MediFind in the treatment of Atrial Fibrillation. His top areas of expertise are Brugada Syndrome, Postural Orthostatic Tachycardia Syndrome (POTS), Short QT Syndrome, and Hypertensive Heart Disease.
Donna Medical Clinic, PLLC
Francisco Rugama is a primary care provider, practicing in Geriatrics and Internal Medicine in Elsa, Texas. Dr. Rugama is rated as an Experienced provider by MediFind in the treatment of Atrial Fibrillation. His top areas of expertise are Type 2 Diabetes (T2D), Osteomyelitis in Children, Pleurisy, and High Cholesterol.
Hni Medical Services
Eduardo Guerra-Valencia is a Geriatrics specialist and a Hospital Medicine provider in Harlingen, Texas. Dr. Guerra-Valencia is rated as an Experienced provider by MediFind in the treatment of Atrial Fibrillation. His top areas of expertise are Biliary Dyskinesia, Sepsis, Necrosis, Gastrostomy, and Endoscopy. Dr. Guerra-Valencia is currently accepting new patients.
Last Updated: 01/09/2026