Board certified in Internal Medicine, General Cardiology, Interventional Cardiology, and Heart Failure and Transplantation. Medical Director of Stanford Cardiac Care Unit since 1991. Clinical interests: CHF, advanced structural heart disease (heart muscle, coronary artery, valve, and pericardial), as well as post radiation and chemotherapy induced heart damage.

Professional Summary

Education & Certifications
  • Residency: Columbia Presbyterian Medical Center (1986) NY
  • Fellowship: Stanford University Cardiovascular Medicine Fellowship (1991) CA
  • Cardiology Fellowship, Stanford University School of Medicine, Cardiology Fellowship (1989)
  • Board Certification, American Board of Internal Medicine, Interventional Cardiology (2002)
  • Board Certification: American Board of Internal Medicine, Cardiovascular Disease (1989)
  • Medical Education: Columbia University College of Physicians and Surgeons (1983) NY
  • Board Certification: American Board of Internal Medicine, Internal Medicine (1986)


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Specializing In

Practice Locations

Heart Transplant Program Stanford, CA
Stanford, CA

300 Pasteur Drive , 2nd Floor, Room A21

Stanford , CA 94305

(650) 723-5468

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Patient Ratings

(164 Ratings)

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Explanations the care provider gave you about your problem or condition
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Care provider's efforts to include you in decisions about your care
Care provider's efforts to include you in decisions about your treatment
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The Patients Ratings and comments are gathered from our Patient Satisfaction Survey and displayed in their entirety.

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Patient Reviews

(244 reviews)

Excellent consultation
Super A+ doctor.
Dr. Vagelos is outstanding.
Dr. Vagelos made time to see me on an emergency basis and spent nearly 2 hours with us on a Friday Evening.
he’s great! love his data driven approach.
Dr. Vagelos is the best!!
He is the BEST!!!
He is a great dr. I recommend him to a lot of people
Fantastic Doctor!
Dr. Vagelos is an excellent doctor and his nurse coordinator, Joridy Lyons is also excellent.
Outstanding doctor and staff
I will be delighted to recommend the care of Dr. Vagelos at the Stanford University Medical Center!
Excellent doctor
Dr Vagelos is the Best Cardiologist i Ever Had he’s caring, knowledgeable and honest
Dr. Vagelos is a great physician
Super! A-1!
he is one of best doctor in this field
All of me appointments went well. With special mention, the EcoCardiogram tech was superb and my comprehensive visit with Dr. Vagelos and his Resident Assistant was outstanding.
Did not feel rushed. Answered all questions.
staff is helpful and MD is great
Michaela did an excellent job with the doppler. Dr. Vagelos is an outstanding doctor.
Excellent doctor, good listener, knowledgeable, thorough, respectful
Can’t be better!
Randall Vagelos, MD is the best.
Very professional and knowledgeable
Dr. Vagelos is an exceptional clincian who spent an unexpected amount of time with me in a professional and caring way.
Awesome cardiologist!
I'm lucky to have him as my Cardiologist.
Dr Vagelos has been my Dr for around 30 years. He saved my life and he is always thorough. One of the few Dr's who sees me as a whole person and intgerates his care with other Dr's in my care team. He really stands out as a person who explains well, and tells me what is going on. I always leave his office with a sense of renewed direction and clarity on what I need to do to stay alive. I can't think of how many times he has caught something that needed checking that was outside his specialty. He sends notes to other Dr's and adjusts medications to accommodate other Dr's prescriptions and looks out for medication interractions. Nobody is like him in my experience. He is so smart about it. I never fall through the cracks. Joridy Lyons is also great. Thorough and thoughtful. they seem to benefit each other with their teamwork.
I am always pleased with the professional way my visit with my doctors is carried out.
I received excellent care.
Outstanding in all aspects.
Excellent provider. Very thorough. Takes plenty of time for explanation and discussion.
Dr. Ronald Vagles is great my are very happy to have such a great dr. He spend time and listen to patient
Excellent visit
Absolutely outstanding cadiologist both clinically and with regard to patient interaction. Best of the best!
He is an excellent doctor
Dr Vagelos is very through and informative. He's the best
Excellent physician!
Dr. Vagelos listens carefully, takes excellent notes, and freely discusses diagnoses, options and has a good "bedside" manner.
StanfordHealth is World Class in not just it’s people and facilities but in their treatment and care of their patients
Dr Vagelos is very thorough, candid, compassionate, and clearly communicates.
Doctor Vagelos is both a fantastic doctor and human being!
If any of my family or Friends needed a refural I would surly recommend Dr. Vagelos
Superstar. Been with Dr. V for 14 years. I owe my life to him (no hyperbole. I trust him implicitly.
He is thoughtful Patient and wonderful
Very professional yet informative with very gentle manner made it super visit
Dr. Vagelos is simply superb.
Outstanding patient care!
he is detailed and followed up with good care. i like being in the care of dr vagelos and stanford medical care. thank you
Outstanding physician. Detail oriented.
Dr.Vagelos is an outstanding cardiologist. His nurse, Joridy, is also outstanding.
he is the best
Excellent doctor.
Thank you!!
Great candid advise
He is the best Dr. I have worked with in many years.
Dr. Vagelos is the epitome of a wonderful doctor.
Exceptional doctor. Especially helpful that his nurse followed to confirm instructions. He and his nurse work well together.
Dr. Vagelos is the best there is!!
Outstanding. I'm privileged to be his patient
Exceptional visit and overall care. No suggestions for improvement.
Asked pertinent questions to troubleshoot. Exhibited care and was personal as well as professional.
Excellent physician and excellent staff. The BEST!
Excellent Doctor- he has been on this journey with me since I came to Standfordhealthcare I am from way up north in California-none of the area doctors knew what was wrong with me. Thanks to the Stanford liver clinic coming to Chico one day a month Dr. Garcia saw me and had me come to Stanford hospital - they , Dr. Vagelos and Dr. Garcia. I owe them both big time for the caring attitude and straight forward approach figuring out what was wrong with me. I would not be writing this if Dr. Vagelos was not my cardiologist.
Outstanding first meeting. I greatly appreciated that Dr. Vagelos took the time to thoroughly review my health and to spend time getting to know me and my lifestyle. I feel confident that he gave me the highest quality care.
Dr. Vagelos is a superb cardiologist and communicator.
He listened & answered patient’s questions very carefully.
Helpful, conscientious and thorough about treating me.
He is really best doctor. God bless.
Excellent care, courteous staffs
Dr. Vagelos came across as a highly competent and caring physician
Dr. Vagelos is thorough and thougtful.
spends lots of time, very thorough
Best medical team is at Stanford
Stanford Medical is of the highest caliber.
outstanding physician
Once you get into the doctor's reception area, he is top notch professional
Dr Vagelos gives me confidence in my care of my health. I feel like I am his only patient that day, and makes it comfortable to ask questions. He is top notch and everytime we disconnect, I always think he's the best1
I am beyond grateful for his excellent care
I have total confidence in Dr. Vagelos.
The doctor is extremely thorough. He answered all of my questions.
Dr. Vagelos is always very patient and compassionate and answers all my questions
great physician
Dr. Vagolas is the very best
As always, very thorough, very professional. He is always interested in me and the whole process of curing my ills. I appreciate that. We have developed a good rapport.
Fantastic Dr.
I am grateful that he is my cardiologist.
He is so excellent and thorough and provides every patient his full attention. He is often late, but no one minds because they know he will give them his full attention for as long as it takes. We trust him with our lives. You can't give a doctor a stronger vote of confidence.
Dr. Vagelos is one of the best. He listens, asks lots of questions, cares about the patient and it shows. I seriously owe a better quality of life to Dr. Vagelos.
He’s outstanding - well prepared, thorough, easy to have a discussion with, excellent medical knowledge and skills.
Always is professional, insightful and compassionate.
fine and honest MD
I answered that in the first question. I would totally want others to have. Doctor like Dr. Vagelos
Very good ,thoughtful and experienced,and prepared
Excellent Doctor.
Dr. Vagelos is an excellent clinician.
Dr. Vagelos is a find M.D.
Drs. Sanchez & Vagelas did their due diligence with regard to my visit. They were both fantastic.
He spent lot of time to look at my history, changes in my health and with recommendation for leading a quality life. Feel fortunate to have such a caring doctor.
Dr. Vagelos reviewed in detail my information and took great care in his responses.
Dr. Vagelos - The very best!
Dr. Vagelos - listens and got my heart rate stable. Made time to see me in his office when I had a major problem.
Excellent all around!
Dr. Vagelos is excellent!
Real good.
Very gifted and caring doctors making sure that medical problems are resolved. It is concern is to keep patients in the best health possible.
Randali Vagelos is superb!
Dr. Vagelos is the best. I can tell that he really cares.
An outstanding physician who listens and shows concern.
Dr. Vagelos is excellent! We consistently feel as if we are his top priority during visits answers questions honestly & always a straight shorter.
Dr Vagelos is an incredibly caring and thorough doctor. He spends whatever time necessary with his patients
Very knowledgeable and direct. Provided me with options.
Dr. Vagelos is a very thoughtful and thorough. I feel that I am being listened to.
Excellent care from Dr. Vagelos! He was very solicitous and friendly.
Dr. Vagelos is worth the wait if you are a cardiac failure patient.
Dr. Vagelos is very caring, very knowledgeable and makes me feel great. He is a joy to visit and get good suggestions for staying healthy and fit.
Very good experience.
fortunate to have this physician
Very fine visit with an expert cardiologist.
Excellent doctor who listens well & cares.
Dr. Vagelos is one of the most outstanding physicians I have ever known, and I'm a physician.
A bit rushed today Dr. made a quick change in conversation to my upcoming care & possible changes. At first I was confused changes would be sooner - was a bit confused for a couple days. All OK now.
I've been seeing Dr. Vagelos for over ten years. He is a wonderful doctor.
Excellent care & advice.
Dr. Vagelos & staff are outstanding! From in office to follow up calls at home.
Dr. Vagelos and all the people there are amazing.
Dr. V. obviously cares a tremendous amount about his patients. He takes the time to think carefully before he discusses what we ought to do.
Dr. Vagelos gave us great attention & care.
I have been a patient of Dr. Vagelos for 24 years - He is an exceptional physician.
I'm so upset I'm having trouble processing this. I'm upset to think I can't reocomment Stanford to others based on this behavior.
Dr. Vagelos is an outstanding doctor!
Dr Vagelos is outstanding. top of the line, thoroughly professional, Stanford is lucky to have him.
Vagelos & Annie are fantastic!
It has been years since I have had a physician demonstrate care and concern for my well being as Dr. Vagelos demonstrated. Very kind, caring and deliberate.
I have been a patient of Dr. Vagelos for 16 years and have 100% confidence in him and am grateful he is my cardiologist. At this last appointment a resident, Nadeem, was present and he was excellent.
Could not have better care ANYWHERE.
Dr. Vagelos and his fellow, Dr. Gerber are very accessible. The do spend the time to listen to my concerns and provide knowledgeable and understandable answers.
Dr. Vagelos is amazing - clearly invested in my care.
The best MD.
Our Doctoris exceptional in understanding and evaluating my health. Explains in simple terms and suggests changes for prevention and enjoying good health in addition to needed pharmacological interventions. Doctor is very busy and some times difficult to get appointments quickly for routine visits. hospital needs to look at work loads and supplement junior doctors to assist him.
Excellent doctor!!
Dr. Vagelos is the best clinician at S.U.M.C. Dr. Vagelos is one of the most caring individuals, which I have ever met in my life. I hope that the administration will continue to reward the best and hire the best clinicians.
Dr. Vagelos is all-around outstanding. I feel lucky to be in his care.
Dr. Vagelos is outstanding. He is brilliant, has great people skills and takes time to thoroughly explain my health situation.
Randy Vagelos is an exceptional cardiologist, and I consider that I am most fortunate to be under his care.
Dr. Vagelos sets the gold standard for high quality and compassionate medical care!
The care provider was visibly stressed and tired resulting in my leaving unsatisfied.
I consider myself to be very fortunate to be under the care of Dr. Vagelos. He is expert in his care, incredibly kind and very reassuring. I am very happy to be his patient.
Dr. Vagelos & Anne are fantastic.
Dr. Vagelos really cared about me as a person and my well being. He took plenty of time with me and described things fully. I am much more likely to be fully compliant.
Best I have ever met!
Dr. Vagelos is professional, caring, thorough, and extremely skilled and knowledgeable. Markham and I are very grateful that we were referred to him. We trust him.
I am privileged to have Dr. Vagelos as my cardiologist. He is an outstanding cardiologist and extremely nice.
Dr. Vagelos is as good as it gets! Stanford Health care is fortunate to have him. He sets the highest standard for other health care professionals to follow! Kudos to Annie Mullin, RN Chen, as well!
Dr. Vagelos is off the charts in knowledge, professionalism, care, kindness, and patient care. Thank you for everything Dr. Vagelos, Annie, and the team!!
I love Dr. Vagelos and his staff. Of all departments, he is the best! Very good doc. I have recommended him to many people people, all of which agree!
The best.
Dr. Vagelos is an outstanding doctor. I have the utmost confidence in his ability to care for me.
Randy Vagelos is the best doctor I've ever seen & I've seen some great doctors.
Extraordinarily attentive and knowledgeable about my personal problem. The time he took to explore my complicated medical history was more than I have ever experienced elsewhere. Superlative physician interaction
I am grateful to be a patient of Dr. Vagelos, and the office is superbly run.
Dr. Vagelos is an outstanding cardiologist.
Always good experience the only bad thing is the reason for being here.
I'm very amazed and pleased that Dr. Vagelos was able to take me as a patient.
Dr. Vagelos allowed me to see him as an emergency, adding me to his busy schedule. He gave me time, answered all of my questions and established a treatment protocol. I am privileged to have him as my cardiologist.
Dr Vargelos spent an unusually long time with me and I feel confidence in his knowledge of my medical history and my current health status.
Dr. Vagelos has excellent communications skills. He provided very clear explanations and answers to questions.
Care provider indicated willingness to refer me to other departments if needed.
First class!
Dr. Vagelos is extraordinarily through, diligent, focused, and considerate.
Randy Vagelos, MD - exceptional in all respects!
Although my wait to see him was over an hour when he got to the room he spent valuable time with me.
Very appreciative of responsiveness of Dr. V in scheduling appointment on a rush basis.
Dr. Vagelos is an excellent cardiologist. He has stabilized my congestive heart failure and been very proactive in seeking solutions/effective treatments for my many problems.
Dr. Vagelos has been incredibly kind & visionary with regard to helping plan treatment. I am so blessed her is my cardiologist - I love my TAVR!! New life!!
Very good doctor, great attention and I trust him a lot.
I like my doc but I seriously dislike the clinic's administrative practices.
Always an excellent experience with Dr. Vagelos and his staff.
I was extremely impressed and satisfied with Dr. Vagelos in every respect.
This cardiologist is excellent and the patient care he delivers doesn't get any better. He is smart, professional and very personable. Great doctor!
I am grateful for Dr. Vagelos' skill, knowledge and thoroughness. Also, his openness with communication.
A brilliant doctor.
Dr. Vagelos has my utmost admiration. He is very thorough and I feel confident he will help me navigate my heart problems.
I was so grateful that I was able to see Dr. Vagelos today. He had an opening in his clinic and I was able to be fit in.
Each experience promoted confidence, reassurance and trust.
Dr. Vagelos is personable, intelligent and an excellent doctor.
We have great respect and confidence in Dr. Vagelos.
Randy Vagelos is the best physician I've ever had. He is superb.
Dr. Vagelos is a fabulous doctor and a great representative of SHC
I have been seeing Dr. Vagelos for 13 years now and have great confidence in him and his care of me.
He's the best!
Great team work.
Dr. Vagelos is a wonderful doctor. He is patient, compassionate and very knowledgeable.
My confidence in R. Vagelos could not be higher!
Dr Vagelos is an expert in the cardiac effects of Radiation therapy. I feel I am making the right decision to make Dr V my only cardiologist for he knows the best treatments , meds, etc in my particuliar case. My San Francisco cardiologist has been counterproductive over the years,
I'm blessed to have Dr Vagelos as my cardiologist. This visit I met with his resident Andrew first who was very thoughtful, knowledgable, and compassionate.
I have known Dr. Vagelos since 1998, and he is superb!
physician is an outstanding professional; took very complete history, interested, friendly with exceptional clinical knowledge.excellent example of the very best at stanford healthcare.
Dr. Vagelos is knowledgeable, experienced, thorough, & he cares.
Dr Vagelos is thorough, careful, and takes the time to elicit relevant information from my mother, who trusts and values Dr V
Dr. Vagelos is an incredibly effective analyst and communicator. He explains clearly what he is thinking and ensures that every point is understood before moving forward.
Good doc; good rapport.
I am indeed fortunate to be under the care of Randy Vagelos, M.D.
you all are very good for what you do
Dr Vadelos was one of the most informative doctors I have ever met. He spent a very along time with me making certain he and I understood all issues.
I have full academic confidence in Dr. Vagelos. But he doesn't seem to remember or care about previous history - Updates his memory, little current complaint (physical complaints) addressed.
I always admire dr v's thoroughness and depth of knowledge of patients like me.
I have been a patient of Dr. Vagelos for 13 yrs. and cannot speak highly enough about him.
I have been Dr. Vagelos' patient for over 20 years. I have total confidence in him. Excellent doctor as well as a human being.
Thank you DR Vagelos!
16th year of care, excellent.
Dr. Vagelos is superb in all respects.
Dr. Vagelos is highly intelligent, well trained, competent, friendly. I highly recommend him.
Dr. Vagelos is truly outstanding in all regards.
Dr.Vagelos is a great Cardiologist and provides outstanding care. We are blessed to have him as our Family Cardiologist.
All very good.
I was completely satisfied with the information and care given by the doctor.
Dr.Vagelos is a wonderful doctor.
Good experience.
Dr. Vagelos was excellent and went way beyond my expectations.
Exceptional care provider (Randy Vagelos, M.D.).
One of the best physicians I've ever been to, and I am a physician. World class care.
Very good.
And overall very positive each appointment was very very helpful.
Dr. Vagelos and his nurse Mullin are exceptional in kindness and good humor.
Listed me as "morbid obese" whereas later BMI was only 29 (overweight).
Randall H. Vagelos, MD is an outstanding cardiologist and Stanford University Medical Center and school of medicine are fortunate to have him. He would be on any ones _______ for best cardiologist practicing today!
Types mostly in the computer.
Dr. Vagelos is one of the most outstanding physician's I've ever met - (I am also a physician) - he is absolutely superb.
A great doctor. I have recommended him to all my friends.

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