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Dr. Nicole Weinberg grew up on the East coast in New Jersey. She attended Emory University in Atlanta where she graduated cum laude with a Bachelor of Science degree in Honors Biology. She received her medical degree from MCP Hahnemann University School of Medicine, now a part of Drexel University, and completed her residency at Thomas Jefferson School of Medicine -- both in Philadelphia. She moved to the West Coast for her cardiology fellowship at Harbor-UCLA Medical Center.

Dr. Weinberg has published extensively in subjects ranging from imaging modalities to evaluation of cardiac disease.  She has lectured locally on Preventative Heart Disease and Women's Heart Disease and is also part of the Women's Health Initiative at St. John's Hospital. Dr. Weinberg is board certified in Echocardiography and Nuclear Cardiology.

The newly established Women’s Heart Center at the Pacific Heart Institute is a passion of hers and she is very excited about all the potential that this Center has to offer the community.

When not working, she enjoys spending much needed quality time with her wonderful husband and three incredible children. Although she misses her family in New Jersey, she loves the excuse to travel home for a visit.



Dr. Sarina van der Zee is board certified in Internal Medicine, Cardiovascular Disease and Cardiac Electrophysiology.  She practices at the Pacific Heart Institute, where her specialty is interventional therapies for arrhythmias including atrial fibrillation and ventricular tachycardia, as well as pacemaker/defibrillator management.  She is particularly interested in arrhythmias in women and athletes.   She is part of the Women’s Heart Center at Pacific Heart Institute, as well as an athlete’s screening program.


After graduating from Yale University, she was awarded a Fulbright-Netherlands America Foundation scholarship to study drug metabolism at a preeminent laboratory in the northern Netherlands, where her family is from.


He medical training was at the Columbia College of Physicians and Surgeons in 2004.  After internship and residency in Internal Medicine at New York-Presbyterian Hospital-Weill Cornell Medical Center, she completed Cardiology and Cardiac Electrophysiology Fellowships at Mount Sinai Medical Center.  She joined Pacific Heart Institute in 2011.  


In her free time, she enjoys jogging, from 5K to marathon distances, as well as reading fiction and spending time with her husband and young son.  



Alexandra Lajoie, M.D. is a non-invasive cardiologist with extensive experience in cardiac imaging.  She is originally from New York and attended Princeton University, followed by medical school at Columbia University.  She moved to Los Angeles for cardiology fellowship at Cedars-Sinai Medical Center. Dr. Lajoie is board-certified in echocardiography, vascular ultrasound, nuclear cardiology, and cardiac CT.  She has published work on imaging, the effects of diet on atherosclerosis, and cardio-oncology, about which she has given presentations to both the community and academic circles.


Dr. Lajoie is passionate about helping patients understand their cardiac conditions and working with them on individualized therapies.  She believes in the importance of prevention and early diagnosis, and she is committed to creating the best treatment plan for each patient’s specific needs. In addition to general and consultative cardiology, she has expertise in preventing and managing heart disease related to cancer therapy.


When she is not caring for patients, Dr. Lajoie enjoys running, hiking, skiing, and traveling.

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