What patients are saying
Overall rating
4.86
Average wait time
4.58
Bedside manner
4.87
“The doctor was so kind great beside manner . He listened to my concerns and assigned me some appt to see what's going on. totally would recommend this provider. ”
Initials hiddenMore than 1 year ago
“Dr. Lessner is an excellent doctor who is upfront with his patients and tells it like it is. He always includes my thoughts and opinions in the final decision. One of the best doctors at Crystal Run Healthcare.”
Jean P.October 8, 2021
About Dr. Seth Lessner
This provider only sees patients with in-network benefits or self-pay. All other bookings are subject to cancellation.
Dr. Seth Lessner is a considerate and mindful cardiologist serving the communities of Middletown, Rock Hill, and West Nyack, NY. He earned his Doctor of Medicine from New York University. Dr. Lessner completed his internship and residency in internal medicine at Yale University, Yale–New Haven Hospital. He also completed a fellowship in clinical cardiac electrophysiology at NewYork-Presbyterian Hospital / Weill Cornell Medical Center. Additionally, he holds a bachelor's degree from Columbia University.
Dr. Lessner is a part of Crystal Run Healthcare. He is board certified in internal medicine, cardiovascular disease, and clinical cardiac electrophysiology by the American Board of Internal Medicine. His medical experience is vast and impressive. His areas of special interest include cardiac arrhythmias, pacemakers, defibrillation, and cardiac ablation.
Dr. Lessner believes in establishing trust by finding common ground and interests outside of medicine and in combining analytic and procedural skills to actively cure some patients' arrhythmias. Outside of his practice, Dr. Lessner enjoys travel, biking, and sports.
He is uncompromising in his dedication to the well-being of his patients and is committed to providing the best care while establishing long-lasting relationships with them.
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In-network insurances
99% of patients have successfully booked with these insurances
Aetna
BlueCross BlueShield
Cigna
Emblem Health
Medicare
UnitedHealthcare
Areas of expertise
This doctor's experience enhances their expertise in similar cases. Below are the conditions or surgeries they treat most frequently.
Abnormal heart rate/rhythm due to ventricular tachycardia
Implantation of cardiac pacemaker or defibrillator
Intermittent racing heartbeat (PSVT)
Replacement or revision of a pacemaker
Atrial fibrillation and atrial flutter
Heart block
Abnormal heart rate/rhythm due to ventricular tachycardia
Implantation of cardiac pacemaker or defibrillator
Intermittent racing heartbeat (PSVT)
Replacement or revision of a pacemaker
Office locations
1 of 2
Education and background
Practice names
Hospital affiliations
- Good Samaritan Hospital
- Nyack Hospital
- Westchester Medical Center
- Saint Anthony Community Hospital
- Mount Sinai St. Luke’s
Board certifications
- Cardiovascular Disease (Internal Medicine)
- Clinical Cardiac Electrophysiology (Internal Medicine)
Education and training
- Medical School - New York University, Doctor of Medicine
- Yale University, Yale New Haven Hospital, Residency in Internal Medicine
- Yale University, Yale New Haven Hospital, Internship in Internal Medicine
- NewYork-Presbyterian Hospital / Weill Cornell Medical Center, Fellowship in Clinical Cardiac Electrophysiology
- Georgetown University, Washington Hospital Center, Fellowship in Cardiovascular Disease
- Columbia University (Bachelor’s)
Awards and publications
- Castle Connolly Top Doctor
Languages spoken
- English
Provider's gender
Male
NPI number
1972761591
Patient reviews
All reviews have been submitted by patients after interacting with the practice.
Overall rating
4.86
Wait time
4.58
Bedside manner
4.87
Your trust is our top concern, so providers can't pay to alter or remove reviews. We also don't publish reviews that contain any private patient health information. Learn more here
44 reviews
Most relevant
Dr. Lessner was knowledgeable, helpful and had a wonderful bedside manner. I would highly recommend him.
July 1, 2020Michael L.Verified patient
highly professional all my questions were answered.
October 26, 2019Glenn M.Verified patient
The doctor was so kind great beside manner . He listened to my concerns and assigned me some appt to see what's going on. totally would recommend this provider.
More than 1 year agoInitials hidden
Dr. Lessner is an excellent doctor who is upfront with his patients and tells it like it is. He always includes my thoughts and opinions in the final decision. One of the best doctors at Crystal Run Healthcare.
October 8, 2021Jean P.Verified patient
Good experience
June 5, 2021Daniel C.Verified patient
Dr. Less we took my concerns seriously and worked out a medical plan with me that we are both comfortable with. He is a courteous and very professional.
August 30, 2017Initials hidden
Dr. Lessner was very kind and patient in describing what the plan of treatment for me would be. This was my first time in this Office, and I have no complaints... the nurse that did my EKG was professional and kind also ;)
June 22, 2017Debra C.Verified patient
Very nice , personalable, good bed side manner.
May 5, 2017Initials hidden
Dr. Lessner was thorough and extremely efficient with regard to time. The was no wait. He was kind and listened patiently to all of my concerns. The nurse was lovely as well.
January 27, 2017Tavi B.Verified patient
Very Professional office - The ladies at the front desk very helpful, his nurse was very kind and compassionate and the Doctor was very easy to talk to and very professional. Would highly recommend him.
January 6, 2017Lisa V.Verified patient
Dr. Lessner is the best. He never rushes me, answers my questions, and treats me with respect. He also was there when I needed him and literally saved my life.
September 9, 2016Pamela H.Verified patient
June 18, 2025Ashley A.Verified patient
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August 13, 2020Mia S.Verified patient
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November 27, 2019Christy B.Verified patient
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September 15, 2017Pamela H.Verified patient
April 14, 2017Lisa T.Verified patient
November 11, 2016Matthew M.Verified patient
How soon can I make an appointment with Dr. Seth Lessner?
Generally, Dr. Seth Lessner has appointments available on Zocdoc within 1 week. You can see Dr. Lessner's earliest availability on Zocdoc and make an appointment online.
Is Dr. Seth Lessner accepting new patients?
Dr. Seth Lessner generally accepts new patients on Zocdoc. You can see Dr. Lessner's earliest availability on Zocdoc and schedule an appointment online.
Does Dr. Seth Lessner accept my insurance?
Choose your insurance plan to verify if Dr. Lessner is in-network.
Can I make an appointment with Dr. Seth Lessner online?
Yes, you can make an appointment online with Dr. Lessner using Zocdoc. It’s simple, secure, and free.
Which hospital is Dr. Seth Lessner affiliated with?
Dr. Seth Lessner is affiliated with Good Samaritan Hospital, Nyack Hospital, and Westchester Medical Center.
What practice does Dr. Seth Lessner work with?
Dr. Seth Lessner works with Crystal Run Healthcare.
Where is Dr. Seth Lessner's office located?
Dr. Seth Lessner has 2 office locations, including in Middletown and Rock Hill, view full addresses on Dr. Lessner's profile.
Which board certifications does Dr. Seth Lessner have?
Dr. Seth Lessner is certified by Cardiovascular Disease (Internal Medicine) and Clinical Cardiac Electrophysiology (Internal Medicine).
What languages does Dr. Seth Lessner speak?
Dr. Seth Lessner speaks English.
How do patients rate Dr. Seth Lessner in reviews?
44 patients have reviewed Dr. Seth Lessner. The overall rating for this doctor is 4.86/5. They have a 4.87/5 rating for bedside manner and a 4.58/5 rating for wait time. You can read individual reviews and ratings on their profile.