About Dr. Nadim Nasir
Dr. Nadim Nasir is a board-certified cardiologist and clinical cardiac electrophysiologist in Houston. He specializes in disorders involving the heart’s electrical system, including rhythms that are too fast, too slow, or irregular. His work also includes broader cardiovascular care for coronary artery disease, high blood pressure, cholesterol disorders, heart failure, and valve conditions. Patients comparing heart specialists can visit the Doctiplus cardiology directory.
Dr. Nasir has extensive experience with catheter ablation, pacemakers, implantable cardioverter defibrillators, and cardiac-device monitoring.
Focus Areas
- Atrial fibrillation and atrial flutter
- Supraventricular and ventricular tachycardia
- Bradycardia, heart block, and slow heart rhythms
- Palpitations, dizziness, and unexplained fainting
- Electrophysiology studies and rhythm monitoring
- Catheter ablation for selected arrhythmias
- Pacemaker and defibrillator implantation
- Cardiac-device programming and follow-up
Patients can review trusted information about heart arrhythmias, cardiac ablation, and implantable defibrillators. These resources explain how rhythm disorders are evaluated and why different procedures or devices may be recommended.
Specialties and Heart Rhythm Care Approach
Clinical cardiac electrophysiology focuses on the electrical signals that control the heartbeat. During an evaluation, Dr. Nasir may review symptoms, medications, previous heart conditions, and earlier test results. Testing may include an electrocardiogram, Holter or event monitoring, device interrogation, echocardiography, or an electrophysiology study.
Treatment depends on the rhythm problem, its severity, and the patient’s overall heart health. Options may include medication, cardioversion, catheter ablation, pacemaker placement, defibrillator implantation, or continued monitoring. Before a procedure, patients should understand its purpose, alternatives, possible risks, recovery needs, and follow-up plan. Ongoing device checks can help confirm that a pacemaker or defibrillator is functioning as intended.
Affiliations
- Willowbrook Cardiovascular Associates
- Houston Methodist Hospital
- Houston Methodist Willowbrook Hospital
- Houston Methodist DeBakey Heart & Vascular Center
- HCA Houston Healthcare North Cypress
Credentials and Education
Dr. Nasir earned his medical degree from the University of Texas Southwestern Medical School in 1986. He completed internal medicine residency training at the University of Texas Southwestern Medical Center in 1989 and a cardiovascular disease fellowship at Baylor College of Medicine in 1992. He is certified in internal medicine, cardiovascular disease, and clinical cardiac electrophysiology. His professional credentials include FACC and FHRS.
Clinic and Appointment Information
Dr. Nasir’s Houston office is located at 6560 Fannin Street, Suite 620, Houston, Texas 77030. The office phone number is (713) 791-1978. Patients should call to confirm new-patient availability, insurance participation, referral requirements, telehealth options, and preparation instructions for rhythm testing or cardiac procedures.
Cardiologist
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