
Highlights
Age Groups Seen
- Adults
- Geriatrics
Languages
- English
Gender
MaleLocations
- Mass General Brigham Cardiology Clinic
- 2014 Washington Street, Elfers Cardiovascular Center - 2 West, Newton, MA 02462
- Get Directions
- phone: 617-831-7100
- fax: 617-243-6392
- Massachusetts General Cardiology Clinic
- 52 Second Avenue, Green Building, Suite 520, Waltham, MA 02451
- Get Directions
- phone: 781-487-6000
- fax: 781-487-2978
- Massachusetts General Cardiology Arrhythmia Service at the Corrigan Minehan Heart Center
- 32 Fruit Street, Yawkey Building, 5th Floor, Suite 5B, Boston, MA 02114
- Get Directions
- phone: 617-724-4500
- fax: 617-726-3306
Expertise
Education
- Fellowship: Massachusetts General Hospital, Cardiac Electrophysiology, 2012
- Residency: Stanford University School of Medicine, Internal Medicine, 2005
- Medical Education: Mount Sinai School of Medicine, 2003
Board Certifications
- Clinical Cardiac Electrophysiology: American Board of Internal Medicine, 2013
- Cardiovascular Disease: American Board of Internal Medicine, 2012
Insurance
- Aetna
- Beech Street
- Blue Cross Blue Shield
- Blue Cross Blue Shield - Indemnity
- Blue Cross Blue Shield Medicare
- Cigna
- Commonwealth Care Alliance
- Coventry
- Fallon Health
- Harvard Pilgrim Health Care
- Humana
- Maine Community Health Options
- Mass General Brigham Health Plan
- MassHealth
- Medicaid ME
- Medicaid NH
- Medicaid RI
- Medicaid VT
- Medicare
- Medicare ACO
- Multiplan
- Railroad Medicare
- Senior Whole Health
- TriCare
- Tufts Health Plan
- Tufts Medicare Preferred
- United Health Care
- Wellpoint
- WellSense
- WellSense NH
Ratings & Reviews
4.8 out of 5
394 ratings, 147 reviewsThe Patient Satisfaction Rating is an average of all responses to the care provider related questions shown below from our survey. Patients that are treated in outpatient or hospital environments may receive different surveys, and the volume of responses will vary by question.
- Reviewed on 1/30/2026
[redacted] The doctor that I had the consult with, it was a cardiac consult. I can't pronounce his name, Dr. Ptaszek. I saw him on [redacted]. He was very polite, explained everything to me thoroughly, prompt, great, great manner, very nice, answered all my questions. I had enough time, so I feel very happy. I'm very extremely happy with Mass General in general. [redacted]
- Reviewed on 1/29/2026
Very professional. Answered all my questions.
- Reviewed on 1/27/2026
Very professional and knowledgable
- Reviewed on 1/25/2026
He instills confidence in his professionalism. He asks for feedback and entertains all questions. And he puts me at ease with his friendly demeanor.
- Reviewed on 1/22/2026
The doctor I saw spoke with strong knowledge of my condition in a very calm and articulate manner, which was very comforting.
- Reviewed on 1/19/2026
He is absolutely the most understanding doctor I have had in a long time. He spoke to me in a way that was very understanding for me. He spent a lot of time with me I never felt rushed or that he was in a hurry.
- Reviewed on 1/17/2026
Always excellent care! Very happy with my cardiologist at MGH!
- Reviewed on 1/19/2026
This was a :first visit". It was timely, and Dr Ptaszek had clearly been in communication with my other providers
- Reviewed on 1/14/2026
I felt like I was being treated as an individual.
- Reviewed on 1/12/2026
Clear explanations
- Reviewed on 1/8/2026
Knowledgeable. Communicated in a manner that allowed me to understand all options regarding my situation.
- Reviewed on 1/7/2026
He is a very professional doctor and I am very happy with him.
- Reviewed on 1/8/2026
very good
- Reviewed on 1/5/2026
The appointment was on time, everything went very well, and we had excellent communication.
- Reviewed on 1/1/2026
He was thorough and I left with no more questions.
- Reviewed on 12/31/2025
Extremely pleased with the physicians assessment of my case.
- Reviewed on 12/28/2025
The provider was great. He was very informative, very kind, and listened to everything I had to say. He was a great guy.
- Reviewed on 12/24/2025
Dr. Ptaszek explained his suggestions and I chose the route I wish to take. I didn't feel rushed and got my questions answered.
- Reviewed on 12/24/2025
Was sent to this provider by my PCP. It was the first time he seen me. He was fine. Explained stuff well.
- Reviewed on 12/24/2025
Very helpful and friendly medical staff and doctors.
- Reviewed on 12/23/2025
He was patient and listened when I was asking my questions about my condition and gave different scenarios.
- Reviewed on 12/22/2025
Always receive excellent care in NW Csrdiology
- Reviewed on 12/22/2025
My provider is very knowledgeable about the heart and its health.
- Reviewed on 12/22/2025
Asked questions and explained my responses in an informative and concise manner. Presented to me the results of the latest tests performed in an easily understood manner. Very professional and friendly.
- Reviewed on 12/17/2025
Dr. Ptaszek explained my conditions and options for treatment in a clear understandable way .He listened and responded to all my questions.
- Reviewed on 12/16/2025
I felt very comfortable with the team, and I was listened to-they are very professional
- Reviewed on 12/15/2025
The visit took all of 10-12 minutes, if that. [redacted] so was upset in that the provider did not spend time with me explaining where things are at. He was very matter of fact and did not give much information. The visit was not worth the effort and could have been handled as a virtual visit. [redacted] I did not feel like things were well explained and discussed. It seemed as though the provided assumed I knew everything.
- Reviewed on 12/15/2025
I liked my provider because I felt as though he really did care
- Reviewed on 12/4/2025
Satisfied
- Reviewed on 12/1/2025
very pleased
- Reviewed on 12/1/2025
He was fabulous. He's very knowledgeable, capable, easy to deal with, excellent. That's it.
- Reviewed on 11/26/2025
excellent resume. well deserved. looking forward to treatment
- Reviewed on 11/24/2025
Wonderful. Feel very comfortable going forward. He put my mind at ease.
- Reviewed on 12/3/2025
I like his conservative approach.
- Reviewed on 11/23/2025
I feel very fortunate and I am grateful to have him as my doctor
- Reviewed on 11/22/2025
Personable, caring, thorough
- Reviewed on 11/22/2025
Happy with care provided
- Reviewed on 11/20/2025
Dr helped to develop na helpful plan of action and his team scheduled appointments before I left in a timely manner. Dr provided useful background on my condition.
- Reviewed on 11/19/2025
Very thorough and knowledgable.
- Reviewed on 11/19/2025
Valuable information and advice. Learned important rhings I was not aware of. I am appreciative.
- Reviewed on 11/18/2025
Dr.Ptaszek was clear and concise with my results and what's to come next.
- Reviewed on 11/17/2025
Dr. Ptaszek is always patient and empathic when we meet. You can tell he cares about his patients. He is a true asset to mass general brigham.
- Reviewed on 11/17/2025
I enjoyed my appointment with him. He was extremely enlightening. He had a lot of good things I needed to do for my health. He is very understanding and extremely knowledgeable.
- Reviewed on 11/12/2025
He was excellent [redacted]
- Reviewed on 11/12/2025
Dr Ptaszek was exceptional. I felt comfortable right away with his easy demeanor. His ability to impart knowledge of the medical condition in layman's terms was unusual in current practice. [redacted] I found Dr Ptaszek's explanation and advice understandable and practical.
- Reviewed on 11/10/2025
Dr. Ptaszek is both compassionate and brilliant. He's a wonderful doctor. I would highly recommend him to anyone. He's the best of the best.
- Reviewed on 11/5/2025
Dr. Ptaszek is a very knowledgeable, respectful and genuinely caring doctor.
- Reviewed on 11/2/2025
Hi, my wife and I were very comfortable with Dr. Ptaszek and I hope I pronounced his name right. Yeah, it was all good. We're looking forward to, or I'm looking forward to working with him in the future. Thank you.
- Reviewed on 11/1/2025
I really like the care provider because they explained things in a very digestible manner. They were very calming and addressed all my concerns.
- Reviewed on 11/1/2025
Dr. Ptaszek was very kind and thoughtful and listened to my worries and fears and made me feel much better about my condition and what the plan was going forward.
- Reviewed on 10/27/2025
Hello, I had a Watchman Device procedure with Dr. [redacted]. I was originally scheduled for a follow-up on [redacted] with a TEE beforehand. [redacted]. The Friday before the visit, I was notified that it would be changed to a virtual appointment. During the visit, Dr. Ptaszek was cordial but seemed rushed and distracted, often looking away from the camera. When I mentioned that I have some pain or aching in my chest area during cycling classes, he said I was "probably out of shape." I explained to him that I'm in the gym five days a week, and have been for many years. I don't like to be critical and do understand that doctors (and nurses) work very hard and are sometimes under a lot of pressure and also that there are patients with much more serious issues. But since you asked, I thought I should be honest about my experience. Thank you.
- Reviewed on 10/25/2025
Very nice and easy to talk to. Answered all my questions and concerns in a way I could understand.
- Reviewed on 10/25/2025
Very knowledgeable, very helpful, understood the condition and gave solid, good medical advice.
- Reviewed on 10/23/2025
This is the second time I've seen Dr. Ptaszek. [redacted] I found him reliable, informative, respectful, on time, and would definitely recommend him to any friends or family.
- Reviewed on 10/21/2025
I appreciate Dr Ptaszek 's complete expertise in my area of need. He is also approachable and friendly. He explains information, test results, and his impressions in a thorough and user friendly manner. I could not expect better care; Dr Ptaszek is superb in my opinion.
- Reviewed on 10/18/2025
Dr. Ptazsek is very knowledgeable and inspires confidence. He also seems to care.
- Reviewed on 10/15/2025
First time using a remote visit. It accomplished the objective, but not as effective as in person
- Reviewed on 10/11/2025
Great doctor
- Reviewed on 10/9/2025
Excellent doctor. Very attentive and personable.
- Reviewed on 10/9/2025
got a very good impression
- Reviewed on 10/10/2025
The street address for the Yawkey building would have been very helpful for us to give the Uber driver. We had the building name, but that building, the Yawkey building, is in many different buildings in different hospitals in the city of Boston. It was very confusing. We lost a lot of time, very stressful, very worrisome. The street address should be given for the building itself. Thank you. in an Uber. We were in the backseat crying. I don't know how to make it do something. I'm not sure they got it.
- Reviewed on 10/8/2025
Very attentive, knowledgeable, and proactive.
- Reviewed on 10/6/2025
Very grateful for the doctor and the nurses and support staff. Visit was outstanding. I wouldn't want to be any other place.
- Reviewed on 10/5/2025
Thoughtful careful knowledgeable
- Reviewed on 10/11/2025
Dr. Ptaszek is a caring provider who Is a very good listener and answers all questions thoroughly
- Reviewed on 10/1/2025
Dr. Ptaszek is really good at thoroughly explaining things. He's a great listener , and a very calming presence. Highly recommend him
- Reviewed on 9/28/2025
Very professional, very knowledgeable --
- Reviewed on 9/27/2025
Thought he was a great communicator He explained my situation and options. Felt very comfortable with him
- Reviewed on 9/28/2025
Happy
- Reviewed on 9/25/2025
This doctor is phenomenal. He educated me and explained things very well. He put me at ease completely.
- Reviewed on 9/24/2025
Your registration system could be more efficient even though you have the fancy restaurant buzzers. I watched for about 40 minutes time and frustration from patients where to/which door- TV quiz show.
- Reviewed on 9/24/2025
I waited in the exam room 2 hrs. Assistant couldn't find the doctor. I left after 2 hrs. I requested that he call me. He did that at 8 pm. I had a visit him over the phone. I would have preferred an in person visit.
- Reviewed on 9/24/2025
Dr. Ptaszek is very professional and thorough. He listened to me, and provided effective feedback.
- Reviewed on 9/21/2025
It's always a pleasure to meet with Dr. Ptaszek.
- Reviewed on 9/19/2025
Dr. Ptaszek is very caring and a tremendous cardiologist. I have the utmost respect for him and my care.
- Reviewed on 9/17/2025
Dr Ptaszek was professional concerned and informative in every way-I'm completely comfortable with him and the way he worked with me
- Reviewed on 9/13/2025
Very personable, professional provider. I have been extremely pleased with the thoroughness of my care. More importantly the promptness of responses
- Reviewed on 9/11/2025
Dr Ptaszek was great! I very much appreciated that I was able to see him.
- Reviewed on 9/11/2025
Appreciate him spending time
- Reviewed on 9/12/2025
The Doctor was amazing. Super kind and very intelligent, but not arrogant. So hard to find these days. He's a real MD that cares about his patients. I feel so blessed to have him as my doctor.
- Reviewed on 9/8/2025
Dr. Ptaszek instilled confidence by demonstrating his knowledge and professionalism.
- Reviewed on 9/8/2025
This was the first time that I have seen Dr. Ptaszek and I was quite comfortable with him being a member of my team.
- Reviewed on 9/4/2025
Dr. Ptaszek was very knowledgeable & had read all my records and was very thorough. He examined me & made suggestions.
- Reviewed on 9/4/2025
I had the best experience and everyone was wonderful
- Reviewed on 8/30/2025
Thank God that I am in good hands with Dr. Ptaszek. Wonderful person, wonderful doctor
- Reviewed on 8/25/2025
Everything was perfect
- Reviewed on 8/19/2025
Fantastic
- Reviewed on 8/26/2025
He is very easy to talk with. Always very professional but kind and easy to understand.
- Reviewed on 8/17/2025
Dr.Ptaszek has been my cardiologist since 2018.He is very caring and has let me know exactly the condition of my heart and the steps and procedures to monitor and correct issues which may arise. I feel Dr.Ptaszek is the very best doctor and person I have as a patient.
- Reviewed on 8/16/2025
Outstanding in every way!
- Reviewed on 8/14/2025
Dr. Ptaszek is very good.
- Reviewed on 8/13/2025
I had Dr Ptasek as my Dr for a long time before I moved to NJ. I'm now back with him at MGB and there is no Dr better! And MGB is as Great as it was before. Nothing like it anywhere and glad I am back. kudos to all the people I say from valet to Drs
- Reviewed on 8/7/2025
I really liked him and thought he was very helpful.
- Reviewed on 8/8/2025
Hello. I would like to give my commentary on Dr. Leon Ptazek. I visited him last [redacted] as a first-time patient. I found that he was extremely knowledgeable, very attentive. He was very sincere. He spent quite a bit of time with me. I was really quite surprised at how much time, and so much so that by the time I left, I really did feel that he was a superior doctor to anybody else I'd seen. And again, I was a first-time patient, also a first-time patient in the cardiology department. [redacted]
- Reviewed on 8/6/2025
I have full respect for this Dr .
- Reviewed on 8/4/2025
Discussed rationale for recommendations and provided answers to all of my questions and concerns.
- Reviewed on 8/4/2025
I am always satisfied and relaxed after my visit.
- Reviewed on 7/30/2025
He always Listens to my concerns and takes my impression of my current state into account. He has great respect for my quality of life. He has explained my issues well and how they may impact my life. I feel ok eke is a Tyler partner in my health care.
- Reviewed on 7/29/2025
Very satisfied with the whole experience.
- Reviewed on 7/31/2025
So my doctor, Leon, took me in early, even though I had gone, which is the first time, which is wonderful. And he spent plenty of time with me and listened to everything I had to say and answered all my questions. And I felt really good about the visit. He ordered a Echo, and he's going to wait, not order a pace monitor, but he was very nice. I didn't spend much time with the girl who did my 12-lead EKG, but I spent quite a bit of time with Dr. Leon. Thank you.
- Reviewed on 7/28/2025
He was absolutely the best that I could have asked for. He did everything beautifully and I was very proud to have him. I rate him, you know, I rate him the highest of anything. Thank you.
- Reviewed on 7/28/2025
She was very professional, very easy to understand, gave excellent explanations, and I felt very comfortable with her.
- Reviewed on 7/27/2025
Dr.Ptaszek is very empathetic,tookthe time to thoroughly discuss my symptoms and concerns.He ordered an echocardiogram and I had the exam the same week. I have the utmost confidence in Dr.Ptaszek and he has given the very best care since 2017.
- Reviewed on 7/26/2025
Yes, Dr. Ptaszek was very focused, communicated clearly, listened to me. We had a very good meeting. Highly recommend him.
- Reviewed on 7/24/2025
It was very helpful. The Doctor was really great. I walked away very pleased with his advice and his manner of advising me. Definitely a 5 Star excellent appointment. Thank you
- Reviewed on 7/23/2025
She is very knowledgeable and took time to explain things, but as in the first appointment was hurried and late and was behind schedule. She seems to be over/scheduled and while she takes the time to do a thorough job, she's ready to rush off to the next Appointment.
- Reviewed on 7/20/2025
Excellent care
- Reviewed on 7/19/2025
Dr Ptaszek and his team are great.
- Reviewed on 7/8/2025
Very good experience. Even though it was my first visit with him he knew my history and medications. I would rate him a 10 and go back. [redacted]
- Reviewed on 7/2/2025
Dr Ptaszek has been my Arrhythmia Specialist since [redacted]. Always a pleasure to see him . [redacted]
- Reviewed on 7/2/2025
He arrived 90 minutes late for my appointment and then seemed rushed when he did arrive. He did seem to have a thorough understanding of my case but didn't seem too interested to help me understand my situation. I believe he was making very sound medical recommendations but not in a manner that made me comfortable with why and what input I may or should have.
- Reviewed on 6/29/2025
All of the people at the Waaltham facility that I had contact with were highly professional and gave me excellent care. I always (all ways) feel well taken care of.
- Reviewed on 6/28/2025
Dr. Ptaszek is smart, professional, interpersonal, and communicative. He is excellent and interested in fixing ailments. I recommend him very highly!
- Reviewed on 6/28/2025
Very satisfied.
- Reviewed on 6/24/2025
All went well
- Reviewed on 6/21/2025
Simply very pleasant.
- Reviewed on 6/21/2025
Always provides exceptional care
- Reviewed on 6/21/2025
Highly competent and attentive
- Reviewed on 6/20/2025
Very happy with experience
- Reviewed on 6/16/2025
He is the best.
- Reviewed on 6/15/2025
excellent
- Reviewed on 6/13/2025
He is kind, competent, experienced and thorough. He explains clearly and listens to concerns. He makes good eye contact, reviews chart and offers sound medical recommendations. Answers all questions...all good
- Reviewed on 6/12/2025
I have been very concerned about what is going on with my heart and the doctor explained things so that I could not only understand what the tests indicate but also put my worries aside.
- Reviewed on 6/12/2025
Excellent visit.
- Reviewed on 6/13/2025
[redacted] great Doctor!!!
- Reviewed on 6/11/2025
Kind, supportive, and of course knowledgeable and communicative...
- Reviewed on 6/7/2025
Wonderful Doctor
- Reviewed on 6/6/2025
He left me with a strong feeling that I had done the right thing coming to see HIM
- Reviewed on 6/6/2025
I was very pleased with Dr. Ptaszek. He was very professional and I had a very good experience seeing him. Thank you.
- Reviewed on 5/29/2025
Dr. Ptaszek, really very thoughtful, very prepared, was very glad that I got a referral to him, seemed to know his stuff, had a plan, went over some options with me and all that, and we're gonna, you know, got a good thing going forward, really liked him.
- Reviewed on 5/26/2025
Very cordial
- Reviewed on 5/22/2025
Dr Ptaszek was extremely considerate and helpful regarding my appointment. I am hoping to became his patient once again.
- Reviewed on 5/19/2025
Extremely efficient & caring
- Reviewed on 5/19/2025
Dr Ptaszek is very thorough. He has wonderful bedside manner.
- Reviewed on 5/21/2025
Had to do by phone. I was set up.
- Reviewed on 5/18/2025
Dr. Ptaszek is a fine cardiologist and I trust him.
- Reviewed on 5/15/2025
The doctor was very informative, answered all my questions, and gave me some, quite a bit of information on what was happening.
- Reviewed on 5/14/2025
De Leon was very proffesional and helpful . Gave very good and useful advice and guidance . Altogether a very good experience .
- Reviewed on 5/13/2025
Dr. Ptaszek was a few minutes late for my scheduled appointment because he needed extra time with a previous patient. I would expect and want him to take the necessary time with me as well, so I assured him that this was not a problem for me. He is a thoughtful and excellent physician, and I have no complaints about this short delay.
- Reviewed on 5/12/2025
receptive, and available if I have more questions after the appt.
- Reviewed on 5/12/2025
Dr Ptaszek cares and listens well to what questions I may have.
- Reviewed on 5/1/2025
As always, this was a useful and productive annual check-in with Dr. Ptaszek. On time, thorough, not rushed, and very clear communicatoin.
- Reviewed on 4/21/2025
Dr. Ptaszek was very helpful.
- Reviewed on 5/1/2025
Dr. Leon was such a gentleman. He explained everything to me. I felt very comfortable with him. I like him very much.
- Reviewed on 4/9/2025
Dr. Ptaszek is particularly skilled in explaining medical details to me. He has treated me for several years, during which time my pulmonary disease has worsened significantly & Dr. Ptaszek and I have had several conversations about the relationship of my two illnesses.
- Reviewed on 4/9/2025
Hi, Dr. Leon was excellent. He made understanding the plan very easy and easy to understand. And I would definitely refer him to anybody seeking a cardiologist with his expertise.
- Reviewed on 4/2/2025
He was very knowledgeable,professional and patient with my questions.