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Joshua D. Moss


Cardiologist and electrophysiologist
Cardiac electrophysiologist, private pilot and proud father

Dr. Joshua Moss is a cardiologist who specializes in diagnosing and treating complex heart rhythm disturbances, or arrhythmias. He has expertise in treating ventricular tachycardia, supraventricular arrhythmias, and atrial fibrillation using catheter ablation, in which the heart is accessed by passing a thin, flexible tube (catheter) through a blood vessel, and small areas causing the problem are cauterized. He is also skilled in surgically implanting pacemakers and defibrillators.

Moss is involved in multiple studies of existing and evolving techniques for treating patients with arrhythmias who have a left ventricular assist device (LVAD), a mechanism implanted in the chest to help the heart pump blood to the body. Drawing on his training as an engineer before medical school, he takes an active interest in designing and testing novel devices for managing heart rhythm disorders.

Moss has a master's degree in mechanical engineering from the Massachusetts Institute of Technology. After earning his medical degree at Harvard Medical School, he completed a residency in internal medicine at Massachusetts General Hospital. He then undertook advanced fellowship training in cardiovascular disease and cardiac electrophysiology at the University of Pennsylvania.

Outside of work, Moss enjoys spending time with his children, especially taking them to visit state and national parks. A licensed pilot, he also enjoys exploring California from the air.

  • Education

    Harvard Medical School, MD, 2003

  • Residencies

    Massachusetts General Hospital, Internal Medicine, 2006

  • Fellowships

    University of Pennsylvania, Cardiovascular Disease, 2009

    University of Pennsylvania, Cardiac Electrophysiology, 2010

  • Board Certifications

    Cardiovascular Disease, American Board of Internal Medicine

    Clinical Cardiac Electrophysiology, American Board of Internal Medicine

  • Academic Title


Where I see patients (3)

    My reviews


    Overall Experience
    184 Ratings
    About our process
    Nov 18, 2023
    Dr Moss is unquestionably one of the best Doctors I have ever consulted. First he was very well dressed and presented impeccable manners interested great listener engaging super intelligent and a joy to be with. I would trust him with major surgery and my life. 10 stars.
    Nov 11, 2023
    Wonder doctor
    Nov 09, 2023
    Dr. Moss is the kind of doctor a patient hopes for. He is sentient kind knowledgeable and talks with me in ways I can understand. His vast knowledge and expertise instills in me confidence beyond what I could have ever hoped for; I feel most fortunate to be in his care.
    Sep 21, 2023
    Excellent in all aspects. The best.
    Sep 06, 2023
    Fabulous doctor. I am very fortunate to have him. Brilliant and compassionate .
    Aug 11, 2023
    Dr. Moss is exceptional in every way! I have complete confidence in his knowledge skill and judgment; and he's just a great person all around!
    Aug 09, 2023
    Dr Moss also seems excellent.
    Aug 04, 2023
    Very grateful for the care and interest extended to me.
    Jul 01, 2023
    I was very pleased with the thorough and sincere interest in listening and explaining that Dr. Moss demonstrated.
    Jun 30, 2023
    I am very pleased with Dr.Moss and his team
    Apr 18, 2023
    Dr. Moss is a very good listener and explains procedures to me so I can understand. He has very good bed side manner.
    Apr 07, 2023
    Dr. Moss is probably the most competent and caring physician I have ever had contact with.
    Mar 28, 2023
    Both doctors gave me encouragement and great informatinon.
    Mar 16, 2023
    I appreciated Dr Moss' immediate response to my note about an inaccuracy.
    Mar 07, 2023
    As a patient I was very pleased with the diligence the focus on the topic at hand and the details delivered in explanations. As a human being I was comforted by the warmth chuckle or two the smiles along the way. This affability makes for my comfort and therefore a more comfortable environment for me to share openly Professional demeanor and service through the entire scope of the visit. Additionally the welcoming of any follow up questions through staff/MyChart was deeply appreciated. I have so many specialists now and little relative experience navigating the larger health "net" so with no active primary care provider sometimes I feel "lost" as to what department or doctor to write my concerns.
    Mar 01, 2023
    Dr. Moss is a wonderful doctor as to both knowledge and caring. Very easy to talk to.
    Mar 01, 2023
    Dr Moss is exceptional. I couldn't ask f a better more capable an caring doctor
    Jan 18, 2023
    Dr. Moss is extraordinary in every way. This is the reason I have been seeing him for 10 years and followed him from U of Chicago to UCSF for my cardiology care!
    Dec 28, 2022
    Learned more about my health
    Dec 15, 2022
    So far is the best care I have ever received from a medical facility thank you
    Dec 14, 2022
    Excellent analysis and follow up.
    Oct 26, 2022
    Dr. Moss listens very carefully. I asked if he might know doctors in Europe who could treat me if needed. He got right back to me with three physicians. He is just an excellent doctor and I am fortunate to have him.
    Oct 26, 2022
    I not only like Dr Moss but I believe and trust his expertise and judgment
    Oct 21, 2022
    Dr. Moss is an exceptional caregiver and doctor. He's an excellent and respectful listener understood all my concerns and explained things carefully.I am lucky to have such a doctor.
    Oct 08, 2022
    Excellent professional personable resourceful..
    Sep 25, 2022
    Dr. Moss is a warm caring and delightful person. I have complete confidence in his medical care of me.
    Aug 13, 2022
    If I could give Dr. Moss a 10 I would.
    Aug 10, 2022
    Dr. Moss listened to my concerns explained the pros and cons associated with my concerns and suggested a strategy to deal with them. I genuinely feel that he is working in my best interest to provide me with the best healthcare. I would have no reservations in recommending him to my friends and colleagues.
    Jul 27, 2022
    Excellent communication between myself Dr and NP. Attentive listened to my concerns and questions and took the time to make sure I understood.
    Jun 15, 2022
    Outstanding care provided
    May 19, 2022
    My provider is exceptional.
    Apr 27, 2022
    Dr. Moss is an exemplary electrophysiologist. His skill and expertise are truly extraordinary as well as his interpersonal and communication skilllsthe complete package.
    Mar 12, 2022
    The nurse practitioner answered many questions not the doctor.
    Feb 24, 2022
    Dr. Moss is outstanding and I feel fortunate to have him as my cardiologist. He's very knowledgeable and thorough and also friendly

    Selected research