What patients are saying
Overall rating
4.93
Average wait time
4.74
Bedside manner
4.92
“Highly recommend! The doctor took the time to listen and recommended a number of analyses to make sure all is well. The nurses were also very professional and the wait time was very short. Overall a good experience.”
Initials hiddenOctober 2, 2025
“This was the most exceptional doctor’s visit I’ve had in a very long time. Extremely thorough, kind, clear, and invested in my concerns and helping me solve them. I learned a lot, I felt so heard, and I felt like there was a clear plan. This was truly the best visit I’ve had in many years of dealing with chronic illness. What a remarkable doctor.”
Georgia G.August 14, 2025
About Dr. Marcelo Mendez
If you need to cancel your appointment within 24 hours of the scheduled time, please call the office.
Dr. Marcelo Mendez is a cardiologist in New York who currently practices at Mount Sinai Heart. He also sees patients through his affiliations with several hospitals, including Mount Sinai Beth Israel Hospital, Mount Sinai West Hospital, and Mount Sinai Morningside Hospital.
Dr. Mendez earned his Doctor of Medicine degree from Universidad Central del Caribe School of Medicine in Bayamón, PR. He is board certified by the American Board of Internal Medicine in cardiovascular disease.
He treats a wide range of conditions, including chest pain, arrhythmia, congestive heart failure, high blood pressure, cardiomyopathy, coronary artery disease, and heart murmurs. Dr. Mendez also performs ECG/EKG tests and cardiovascular screenings. Patients appreciate his professionalism and warm, reassuring manner.
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In-network insurances
99% of patients have successfully booked with these insurances
Aetna
BlueCross BlueShield
Cigna
Emblem Health
UnitedHealthcare
UnitedHealthcare Oxford
Areas of expertise
This doctor's experience enhances their expertise in similar cases. Below are the conditions or surgeries they treat most frequently.
Atrial fibrillation and atrial flutter
Chronic high blood pressure
Coronary Artery Disease
Heart failure
Atrial fibrillation and atrial flutter
Chronic high blood pressure
Coronary Artery Disease
Heart failure
Office locations
Dr. Marcelo Mendez, MD also offers online video visits for patients
1 of 3
Education and background
Practice names
Hospital affiliations
- The Mount Sinai Hospital
- The Mount Sinai Hospital, Queens
- Mount Sinai West
- Mount Sinai Beth Israel
- Mount Sinai Morningside
Board certifications
- American Board of Internal Medicine
- Cardiovascular Disease (American Board of Internal Medicine)
Education and training
- Medical School - Universidad Central del Caribe School of Medicine, Doctor of Medicine
Languages spoken
- English
Provider's gender
Male
NPI number
1639596083
Patient reviews
All reviews have been submitted by patients after interacting with the practice.
Overall rating
4.93
Wait time
4.74
Bedside manner
4.92
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
150 reviews
Most relevant
The doctor was simply amazing he answered all my questions and concerned. I am very happy that I have found this provider.
September 18, 2024Matthania L.Verified patient
A very great experience with Dr Mendez. Exactly what I was looking for in a doctor/patient interaction. He is outstanding!!!!
March 28, 2024Oscar R.Verified patient
I feel lucky to have found this office. Everyone from the doctor to the front desk was welcoming and professional.
October 9, 2024Initials hidden
Doctor was thorough, answered my questions, very knowledgeable and professional. I would definitely return and recommend.
March 25, 2024Noemi G.Verified patient
My visit there was very relaxing I was treated very well and I will be returning to this office. Everyone there is very nice.
January 17, 2023Anita B.Verified patient
Dr. Mendez is a wonderful cardiologist. He listens and explores options before throwing medication at you.
July 18, 2024Otema C.Verified patient
He listened really well before giving his diagnosis. I didn’t feel like I was rushed so he could get the next patient.
July 22, 2023Sandra G.Verified patient
The doctor was very professional and very honest. His staff was very welcoming and very professional as well.
March 26, 2024David Z.Verified patient
Doc made sure all my questions were answered and re assured me of everything he’s a cool doc
December 14, 2024Leticia C.Verified patient
This doctor denied a scheduled test and refused to accept an ekg from another doctor.
April 4, 2025David C.Verified patient
The technician who did the heart ultrasounds on me was truly wonderful and Dr. Mendez super nice and smart.
October 19, 2023Kajal G.Verified patientVideo visit
Very nice office, friendly staff and quick to be seen!
January 9, 2026Initials hidden
The experience was great. The staff was very professional and the waiting time was excellent.
March 23, 2023Roberto J.Verified patient
The office was very nice, new and clean and the provider was very friendly.
September 20, 2024Andre M.Verified patient
The Doctor was very thorough in his explanations and listened to all my questions.
More than 1 year agoInitials hidden
Dr. Mendez is an outstanding cardiologist. I highly recommend.
October 3, 2024Erica J.Verified patient
Great cardiologist, very honest and upfront , helpful as well
October 4, 2024Ciera T.Verified patient
Everything was great. It was a pleasure to work with Dr. Mendez
January 12, 2024Vincent S.Verified patient
Highly recommend! The doctor took the time to listen and recommended a number of analyses to make sure all is well. The nurses were also very professional and the wait time was very short. Overall a good experience.
October 2, 2025Initials hidden
Excellent service
September 24, 2025Juan L.Verified patient
This was the most exceptional doctor’s visit I’ve had in a very long time. Extremely thorough, kind, clear, and invested in my concerns and helping me solve them. I learned a lot, I felt so heard, and I felt like there was a clear plan. This was truly the best visit I’ve had in many years of dealing with chronic illness. What a remarkable doctor.
August 14, 2025Georgia G.Verified patient
Mount Sinai is a pain to deal with if you are not already part of their system, but the medical part of the business is very good and my doctor was great
July 1, 2025Robert C.Verified patient
Very professional and excellent service
March 28, 2025Nicole L.Verified patient
Knowledgeable, great listener, and super nice.
March 4, 2025Initials hidden
My first visit and the doctor was friendly, thorough, smart and possessed a sense of humor. Would recommend highly need I say more.
The office staff nice, efficient and the office neat clean.
December 20, 2024Paul D.Verified patient
Excellent!!!
December 10, 2024Flavia D.Verified patient
I was very impressed with Dr. Mendez and his professionalism and the way he made me feel about my issue. He is caring and absolutely amazing doctor. His staff are very nice and friendly and organized. I highly recommend Dr. Mendez.
Dora Pekar RN
October 11, 2024Dora P.Verified patient
The office was nice and clean. The receptionist and nurse were very nice. Dr Mendez was able to explain and schedule necessary medical testing I will need.
October 3, 2024Diana S.Verified patient
Very positive experience with Dr. Mendez and the support staff. Dr. Mendez was kind, empathetic, thorough and addressed all my questions and concerns. Highly recommend
July 25, 2024Initials hidden
waiting room was spotless. clean offices and exam rooms. equipment well maintained. professional and friendly staff. doctor took time to listen to concerns and explained procedures concisely.
June 16, 2024SAIYD S.Verified patient
Me quedaría corta con todo lo que tendría que decir el Doctor Méndez. Es un gran Doctor y llegar donde él es se siente como que llegaste a la casa de tu madre ????. No me mal interpreten, confianza y amabilidad de sobra. Me sentí como en casa.
May 31, 2024Rosalba O.Verified patient
Very professional
April 18, 2024Zory C.Verified patient
Great teamwork
April 4, 2024Elizabeth C.Verified patient
Best doc ever
March 16, 2024Initials hidden
Very knowledgeable, kind, patient and thorough!
More than 1 year agoInitials hidden
Excellent
January 23, 2024Juan L.Verified patient
THIS DOCTOR IS AMAZINGLY THOROUGH! Everything was explained in very easy to understand terms , doc was very helpful in recommending the right lifestyle choices to make. Would recommend 100/100!
January 9, 2024Dontae B.Verified patient
Excellent
January 2, 2024Rosalba O.Verified patient
Overall amazing!
December 23, 2023Hyvil E.Verified patient
I chose this doctor out of convenience, but was really happy with my experience with Dr. Mendez. He didn't rush through our appointment, took time to listen to my concerns, was overall very reassuring and thorough. He is a great health care provider. Also, the technician who did my echocardiogram was delightful, very friendly and personable.
September 1, 2023Chelsey S.Verified patient
Great Doctor, friendly and professional staff
More than 1 year agoGuerby B.Verified patient
Dr. Mendez is first rate. There a many physicians who half-listen and gently shove you out the door with a prescription or do tons of unnecessary tests (for obvious financial reasons). Dr. Mendez is the opposite of that. He truly cares and takes his time to listen to form a better picture and diagnosis. I feel extremely well taken care of. I highly recommend him and his staff. A+
March 14, 2023Nikolaus R.Verified patient
Dr. Mendez is amazing: competent, patient and friendly. He isn't one of those doctors who writes a prescription and gently shoves you out the door. This is my second visit and I really feel heard and taken care of. Great staff and practice. Warmly recommend! A+
January 20, 2023Nikolaus R.Verified patient
The staff is friendly, and well-mannered.
January 19, 2023Woodlyne B.Verified patient
Hands down. The best doctor I have ever encountered. He listens, advice and takes his time.
Everyone in the office: professional and caring.
January 12, 2023Muntaha H.Verified patient
My appointment was handled seamlessly at the front desk as well as when I was called back into the exam room. The staff & Doctor were extremely nice & informative. I was called in almost immediately and seen within minutes which quickly put me at ease. Dr. Mendez listened carefully to my concerns & addressed everything I asked or mentioned. Top notch service here!
January 9, 2023Hadit S.Verified patient
Dr. Mendez was patient and took the time to listen to me which I consider one of the most important (and often neglected) characteristics of a good physician. I deal with a lot of anxiety and stress and Doctor Mendez was able to quickly and efficiently allay my fears. He addressed my problem really well and I am happy to be his patient. The office was very busy but everyone seemed patient, friendly and well-organized. Would warmly recommend this doctor.
January 5, 2023Nikolaus R.Verified patient
Doctor listened to all my worries and was able to run all tests necessary, answered my questions in a very friendly and empathetic manner. Will be coming back! Also very friendly staff! Thank you so much!
December 15, 2022Radairis P.Verified patient
Less than 3 months agoInitials hidden
February 25, 2026Ciaran O.Verified patient
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How soon can I make an appointment with Dr. Marcelo Mendez?
Generally, Dr. Marcelo Mendez has appointments available on Zocdoc within 1 week. You can see Dr. Mendez's earliest availability on Zocdoc and make an appointment online.
Is Dr. Marcelo Mendez accepting new patients?
Dr. Marcelo Mendez generally accepts new patients on Zocdoc. You can see Dr. Mendez's earliest availability on Zocdoc and schedule an appointment online.
Does Dr. Marcelo Mendez accept my insurance?
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Can I make an appointment with Dr. Marcelo Mendez online?
Yes, you can make an appointment online with Dr. Mendez using Zocdoc. It’s simple, secure, and free.
Which hospital is Dr. Marcelo Mendez affiliated with?
Dr. Marcelo Mendez is affiliated with The Mount Sinai Hospital, The Mount Sinai Hospital, Queens, and Mount Sinai West.
What practice does Dr. Marcelo Mendez work with?
Dr. Marcelo Mendez works with Mount Sinai Heart.
Where is Dr. Marcelo Mendez's office located?
Dr. Marcelo Mendez has 5 office locations, including in Brooklyn and New York, view full addresses on Dr. Mendez's profile.
Which board certifications does Dr. Marcelo Mendez have?
Dr. Marcelo Mendez is certified by American Board of Internal Medicine and Cardiovascular Disease (American Board of Internal Medicine).
What are common reasons for patients to see Dr. Marcelo Mendez?
Dr. Marcelo Mendez frequently sees patients for Cardiology Consultation , Cardiology Follow Up , Cardiovascular Screening Visit, Carotid Doppler, and High Blood Pressure / Hypertension. You can see other visit reasons for Dr. Marcelo Mendez on their profile.
What languages does Dr. Marcelo Mendez speak?
Dr. Marcelo Mendez speaks English.
How do patients rate Dr. Marcelo Mendez in reviews?
150 patients have reviewed Dr. Marcelo Mendez. The overall rating for this doctor is 4.93/5. They have a 4.92/5 rating for bedside manner and a 4.74/5 rating for wait time. You can read individual reviews and ratings on their profile.