Zian H. Tseng


Cardiologist and electrophysiologist

About me

Dr. Zian H. Tseng is a cardiologist and electrophysiologist (a specialist in heart rhythm abnormalities). He is an expert in determining the risk of patients prone to sudden cardiac death (SCD) and ventricular arrhythmias, which can cause SCD. He also specializes in catheter ablation of complex arrhythmias (a procedure to destroy heart tissue causing an abnormal beat), implanting defibrillators and resynchronizing heart devices, and extracting the leads or wires for heart devices (when, for example, the leads malfunction or become infected).

In the past, Tseng was awarded a five-year grant from the National Institutes of Health to more accurately define SCD, the conditions underlying SCD and its risk factors. He also is studying the genetics of SCD and the risk of sudden death with the use of Tasers by law enforcement agencies. In addition, he is involved with developing new devices to treat heart rhythm disorders.

A Bay Area native, Tseng completed undergraduate studies in molecular biology and biochemistry at the University of California, Berkeley and earned his medical degree at UCSF, where he also completed a year of graduate studies in biomedical sciences. He completed subspecialty training in internal medicine, cardiology, and cardiac electrophysiology at UCSF.

  • Education

    UCSF School of Medicine, 1998

  • Residencies

    UCSF Medical Center, 2000

  • Fellowships

    UCSF Medical Center, Cardiology, 2002

    UCSF Medical Center, Cardiac Electrophysiology, 2004

  • Academic Title


  • Languages


Asian Heart and Vascular Center

1600 Divisadero St., Second Floor
San Francisco, CA 94115

Cardiac Electrophysiology and Arrhythmia Service

400 Parnassus Ave., Fifth Floor
San Francisco, CA 94143

Cardiovascular Genetics Program

535 Mission Bay Blvd. South
San Francisco, CA 94158

My reviews


Overall Experience
59 Reviews
Dr. Tseng is a caring and professional Doctor and I am lucky to be under his care and expertise.
Explained things in a way that was easy to understand
59 Reviews
Did the doctor pay attention to your concerns
58 Reviews
Gave easy to understand instructions about taking care of health problems or concerns
54 Reviews
Knew the important information about your medical history
57 Reviews
The provider showed respect for what you had to say
59 Reviews
The provider spent enough time with me
59 Reviews

Selected research