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A native of Puerto Rico, Dr. Ada Mercado received her undergraduate degree from InterAmerican University and attended medical school at Pedro Henríquez Ureña. She completed her internal medicine residency in the Mayagüez Medical Center and her cardiovascular disease fellowship at Ponce School of Medicine & Health Sciences St. Luke's Episcopal Hospital. Dr. Mercado then completed an echocardiography fellowship at Tulane and Louisiana State University in New Orleans, LA. She also completed nuclear cardiology training at Emory University in Atlanta.
Dr. Mercado is board-certified in cardiovascular disease. She is a member of the American College of Cardiology and American Echcoardiography Society. Her special interests include general cardiology, transthoracic and transesophageal echocardiogram, and nuclear cardiology.
She joined Wellstar in January 2011 from the Atlanta Heart Center where she was a founding physician in 2002.
Specialties
Cardiovascular Disease
Cardiology
Education & Training
Universidad Nacional Pedro Henriquez Urena
Certifications
National Board of Physicians and Surgeons
Hospital Affiliations
Wellstar Kennestone Hospital
Wellstar North Fulton Hospital
Languages spoken
English
Spanish
Patient Reviews
Overall patient rating
4.6
4.6
Based on 504 patient ratings
I'd recommend this practice to family and friends
4.81
I'd recommend this provider to family and friends
4.80
Listened to me carefully
4.61
Shared the right amount of information
4.58
Earned my trust
4.51
All reviews have been submitted by patients after seeing the provider.For more information about the review system, check out this Learn more about our review system.
Patient Reviews
5
Only issue is to hard to get appointment.
September 12, 2024
5
Dr. Mercado has been my doctor for several years now. She understands me, we can communicate, she explains things where I understand, she tells me if I'm right, if I'm wrong. I like her, I like her disposition, I like the way she handles me because I'm not a very easy patient. She is a great doctor. I would recommend her to anybody. Thank you. Bye.
September 11, 2024
3
My appointment was at 1:30. Provider didn't come into the room until 2:20. No one followed up to make sure I was ok or to even explain why I was waiting so long. Provider was sweet but being that this was my first visit, I expected better.
September 8, 2024
5
Great first experience with new office and doctor
September 13, 2024
5
Dr. Mercado always provides adequate time for consultation.
September 9, 2024
5
Excellent care from Dr. Ada Mercado.
September 8, 2024
5
Our experience with Dr. Ada Mercado has always been excellent and we have been with her for several years now.
September 8, 2024
5
Just want to say I am always amaze concerning the cheerfulness they have for the patients they are treating.
September 1, 2024
5
Dr. Mercado is absolutely amazing and the best doctor I have ever had. I've never felt so comfortable with a healthcare professional as I do with her. She is caring beyond measures and extremely knowledgeable.
September 1, 2024
5
Great customer care, listened to my issues, it was very great. I'm very pleased with the outcome.
August 25, 2024
5
Very good and my wife recommended her. She is a person who treats the patient like family.
August 22, 2024
5
Dr. Mercado is great!!!!
August 23, 2024
5
I was very well pleased with everything and everyone. Thank you.
August 21, 2024
5
Doctor and staff always friendly
August 21, 2024
4
Yes, I want to say clearly that the doctor Mercado has been very good and does her job well, I give her a 10, thank you.
August 18, 2024
5
The visit was excellent. The nurse, the doctor and the girl at the front desk were also excellent.
August 15, 2024
5
Thank you!?
August 8, 2024
5
I always have a good experience with everyone during my visits.
August 8, 2024
5
My experience was superior from the time I entered the building to the time I was discharged. Love my WellStar Family!
July 20, 2024
5
Excellent attention. I was very happy with everyone who helped me, and I loved the doctor. She was very kind and professional. Many blessings to all.
July 20, 2024
5
Super job! Keep up the outstanding work!
July 21, 2024
5
Well, everything you asked me and all the information you gave me was very good, thank you very much, goodbye.
July 21, 2024
2
Sometimes as a patient I expect to receive respectful treatment, and to hear that my provider does not give me enough information and his tone of voice is not the most appropriate, I just need to know that I can feel safe and heard surrounding my condition!
July 14, 2024
5
The entire building in general was very clean. Starting from the parking lot, the staff and Dr. Mercado were friendly and attentive. They must keep payment machines available within the hospital. Thank you.
July 14, 2024
5
Dr Mercado is very knowledgeable, caring, with great "bedside manner", and a joy to work with.
July 14, 2024
5
Professional all the way!
July 12, 2024
4
Good afternoon to me, everything was excellent, everything from the entrance to the reception as well as with the assistant doctor. Thank you very good attention.
July 12, 2024
5
Very thorough exam
July 10, 2024
5
A doctor who actually listens to you and talks to you!! To top it off, on time.
July 3, 2024
5
Thanks for all what you guys has been done with me, God Bless You all!!
June 28, 2024
5
Only issue is to hard to get appointment.
September 12, 2024
5
Dr. Mercado has been my doctor for several years now. She understands me, we can communicate, she explains things where I understand, she tells me if I'm right, if I'm wrong. I like her, I like her disposition, I like the way she handles me because I'm not a very easy patient. She is a great doctor. I would recommend her to anybody. Thank you. Bye.
September 11, 2024
5
Great first experience with new office and doctor
September 13, 2024
5
Dr. Mercado always provides adequate time for consultation.
September 9, 2024
5
Excellent care from Dr. Ada Mercado.
September 8, 2024
5
Our experience with Dr. Ada Mercado has always been excellent and we have been with her for several years now.
September 8, 2024
5
Just want to say I am always amaze concerning the cheerfulness they have for the patients they are treating.
September 1, 2024
5
Dr. Mercado is absolutely amazing and the best doctor I have ever had. I've never felt so comfortable with a healthcare professional as I do with her. She is caring beyond measures and extremely knowledgeable.
September 1, 2024
5
Great customer care, listened to my issues, it was very great. I'm very pleased with the outcome.
August 25, 2024
5
Very good and my wife recommended her. She is a person who treats the patient like family.
August 22, 2024
5
Dr. Mercado is great!!!!
August 23, 2024
5
I was very well pleased with everything and everyone. Thank you.
August 21, 2024
5
Doctor and staff always friendly
August 21, 2024
5
The visit was excellent. The nurse, the doctor and the girl at the front desk were also excellent.
August 15, 2024
5
Thank you!?
August 8, 2024
5
I always have a good experience with everyone during my visits.
August 8, 2024
5
My experience was superior from the time I entered the building to the time I was discharged. Love my WellStar Family!
July 20, 2024
5
Excellent attention. I was very happy with everyone who helped me, and I loved the doctor. She was very kind and professional. Many blessings to all.
July 20, 2024
5
Super job! Keep up the outstanding work!
July 21, 2024
5
Well, everything you asked me and all the information you gave me was very good, thank you very much, goodbye.
July 21, 2024
5
The entire building in general was very clean. Starting from the parking lot, the staff and Dr. Mercado were friendly and attentive. They must keep payment machines available within the hospital. Thank you.
July 14, 2024
5
Dr Mercado is very knowledgeable, caring, with great "bedside manner", and a joy to work with.
July 14, 2024
5
Professional all the way!
July 12, 2024
5
Very thorough exam
July 10, 2024
5
A doctor who actually listens to you and talks to you!! To top it off, on time.
July 3, 2024
5
Thanks for all what you guys has been done with me, God Bless You all!!
June 28, 2024
4
Yes, I want to say clearly that the doctor Mercado has been very good and does her job well, I give her a 10, thank you.
August 18, 2024
4
Good afternoon to me, everything was excellent, everything from the entrance to the reception as well as with the assistant doctor. Thank you very good attention.
July 12, 2024
3
My appointment was at 1:30. Provider didn't come into the room until 2:20. No one followed up to make sure I was ok or to even explain why I was waiting so long. Provider was sweet but being that this was my first visit, I expected better.
September 8, 2024
2
Sometimes as a patient I expect to receive respectful treatment, and to hear that my provider does not give me enough information and his tone of voice is not the most appropriate, I just need to know that I can feel safe and heard surrounding my condition!
July 14, 2024
2
Sometimes as a patient I expect to receive respectful treatment, and to hear that my provider does not give me enough information and his tone of voice is not the most appropriate, I just need to know that I can feel safe and heard surrounding my condition!
July 14, 2024
3
My appointment was at 1:30. Provider didn't come into the room until 2:20. No one followed up to make sure I was ok or to even explain why I was waiting so long. Provider was sweet but being that this was my first visit, I expected better.
September 8, 2024
4
Yes, I want to say clearly that the doctor Mercado has been very good and does her job well, I give her a 10, thank you.
August 18, 2024
4
Good afternoon to me, everything was excellent, everything from the entrance to the reception as well as with the assistant doctor. Thank you very good attention.
July 12, 2024
5
Only issue is to hard to get appointment.
September 12, 2024
5
Dr. Mercado has been my doctor for several years now. She understands me, we can communicate, she explains things where I understand, she tells me if I'm right, if I'm wrong. I like her, I like her disposition, I like the way she handles me because I'm not a very easy patient. She is a great doctor. I would recommend her to anybody. Thank you. Bye.
September 11, 2024
5
Great first experience with new office and doctor
September 13, 2024
5
Dr. Mercado always provides adequate time for consultation.
September 9, 2024
5
Excellent care from Dr. Ada Mercado.
September 8, 2024
5
Our experience with Dr. Ada Mercado has always been excellent and we have been with her for several years now.
September 8, 2024
5
Just want to say I am always amaze concerning the cheerfulness they have for the patients they are treating.
September 1, 2024
5
Dr. Mercado is absolutely amazing and the best doctor I have ever had. I've never felt so comfortable with a healthcare professional as I do with her. She is caring beyond measures and extremely knowledgeable.
September 1, 2024
5
Great customer care, listened to my issues, it was very great. I'm very pleased with the outcome.
August 25, 2024
5
Very good and my wife recommended her. She is a person who treats the patient like family.
August 22, 2024
5
Dr. Mercado is great!!!!
August 23, 2024
5
I was very well pleased with everything and everyone. Thank you.
August 21, 2024
5
Doctor and staff always friendly
August 21, 2024
5
The visit was excellent. The nurse, the doctor and the girl at the front desk were also excellent.
August 15, 2024
5
Thank you!?
August 8, 2024
5
I always have a good experience with everyone during my visits.
August 8, 2024
5
My experience was superior from the time I entered the building to the time I was discharged. Love my WellStar Family!
July 20, 2024
5
Excellent attention. I was very happy with everyone who helped me, and I loved the doctor. She was very kind and professional. Many blessings to all.
July 20, 2024
5
Super job! Keep up the outstanding work!
July 21, 2024
5
Well, everything you asked me and all the information you gave me was very good, thank you very much, goodbye.
July 21, 2024
5
The entire building in general was very clean. Starting from the parking lot, the staff and Dr. Mercado were friendly and attentive. They must keep payment machines available within the hospital. Thank you.
July 14, 2024
5
Dr Mercado is very knowledgeable, caring, with great "bedside manner", and a joy to work with.
July 14, 2024
5
Professional all the way!
July 12, 2024
5
Very thorough exam
July 10, 2024
5
A doctor who actually listens to you and talks to you!! To top it off, on time.
July 3, 2024
5
Thanks for all what you guys has been done with me, God Bless You all!!
June 28, 2024
5
Great first experience with new office and doctor
September 13, 2024
5
Only issue is to hard to get appointment.
September 12, 2024
5
Dr. Mercado has been my doctor for several years now. She understands me, we can communicate, she explains things where I understand, she tells me if I'm right, if I'm wrong. I like her, I like her disposition, I like the way she handles me because I'm not a very easy patient. She is a great doctor. I would recommend her to anybody. Thank you. Bye.
September 11, 2024
5
Dr. Mercado always provides adequate time for consultation.
September 9, 2024
3
My appointment was at 1:30. Provider didn't come into the room until 2:20. No one followed up to make sure I was ok or to even explain why I was waiting so long. Provider was sweet but being that this was my first visit, I expected better.
September 8, 2024
5
Excellent care from Dr. Ada Mercado.
September 8, 2024
5
Our experience with Dr. Ada Mercado has always been excellent and we have been with her for several years now.
September 8, 2024
5
Just want to say I am always amaze concerning the cheerfulness they have for the patients they are treating.
September 1, 2024
5
Dr. Mercado is absolutely amazing and the best doctor I have ever had. I've never felt so comfortable with a healthcare professional as I do with her. She is caring beyond measures and extremely knowledgeable.
September 1, 2024
5
Great customer care, listened to my issues, it was very great. I'm very pleased with the outcome.
August 25, 2024
5
Dr. Mercado is great!!!!
August 23, 2024
5
Very good and my wife recommended her. She is a person who treats the patient like family.
August 22, 2024
5
I was very well pleased with everything and everyone. Thank you.
August 21, 2024
5
Doctor and staff always friendly
August 21, 2024
4
Yes, I want to say clearly that the doctor Mercado has been very good and does her job well, I give her a 10, thank you.
August 18, 2024
5
The visit was excellent. The nurse, the doctor and the girl at the front desk were also excellent.
August 15, 2024
5
Thank you!?
August 8, 2024
5
I always have a good experience with everyone during my visits.
August 8, 2024
5
Super job! Keep up the outstanding work!
July 21, 2024
5
Well, everything you asked me and all the information you gave me was very good, thank you very much, goodbye.
July 21, 2024
5
My experience was superior from the time I entered the building to the time I was discharged. Love my WellStar Family!
July 20, 2024
5
Excellent attention. I was very happy with everyone who helped me, and I loved the doctor. She was very kind and professional. Many blessings to all.
July 20, 2024
2
Sometimes as a patient I expect to receive respectful treatment, and to hear that my provider does not give me enough information and his tone of voice is not the most appropriate, I just need to know that I can feel safe and heard surrounding my condition!
July 14, 2024
5
The entire building in general was very clean. Starting from the parking lot, the staff and Dr. Mercado were friendly and attentive. They must keep payment machines available within the hospital. Thank you.
July 14, 2024
5
Dr Mercado is very knowledgeable, caring, with great "bedside manner", and a joy to work with.
July 14, 2024
4
Good afternoon to me, everything was excellent, everything from the entrance to the reception as well as with the assistant doctor. Thank you very good attention.
July 12, 2024
5
Professional all the way!
July 12, 2024
5
Very thorough exam
July 10, 2024
5
A doctor who actually listens to you and talks to you!! To top it off, on time.
July 3, 2024
5
Thanks for all what you guys has been done with me, God Bless You all!!
June 28, 2024
5
Thanks for all what you guys has been done with me, God Bless You all!!
June 28, 2024
5
A doctor who actually listens to you and talks to you!! To top it off, on time.
July 3, 2024
5
Very thorough exam
July 10, 2024
5
Professional all the way!
July 12, 2024
4
Good afternoon to me, everything was excellent, everything from the entrance to the reception as well as with the assistant doctor. Thank you very good attention.
July 12, 2024
5
Dr Mercado is very knowledgeable, caring, with great "bedside manner", and a joy to work with.
July 14, 2024
5
The entire building in general was very clean. Starting from the parking lot, the staff and Dr. Mercado were friendly and attentive. They must keep payment machines available within the hospital. Thank you.
July 14, 2024
2
Sometimes as a patient I expect to receive respectful treatment, and to hear that my provider does not give me enough information and his tone of voice is not the most appropriate, I just need to know that I can feel safe and heard surrounding my condition!
July 14, 2024
5
My experience was superior from the time I entered the building to the time I was discharged. Love my WellStar Family!
July 20, 2024
5
Excellent attention. I was very happy with everyone who helped me, and I loved the doctor. She was very kind and professional. Many blessings to all.
July 20, 2024
5
Well, everything you asked me and all the information you gave me was very good, thank you very much, goodbye.
July 21, 2024
5
Super job! Keep up the outstanding work!
July 21, 2024
5
I always have a good experience with everyone during my visits.
August 8, 2024
5
Thank you!?
August 8, 2024
5
The visit was excellent. The nurse, the doctor and the girl at the front desk were also excellent.
August 15, 2024
4
Yes, I want to say clearly that the doctor Mercado has been very good and does her job well, I give her a 10, thank you.
August 18, 2024
5
Doctor and staff always friendly
August 21, 2024
5
I was very well pleased with everything and everyone. Thank you.
August 21, 2024
5
Very good and my wife recommended her. She is a person who treats the patient like family.
August 22, 2024
5
Dr. Mercado is great!!!!
August 23, 2024
5
Great customer care, listened to my issues, it was very great. I'm very pleased with the outcome.
August 25, 2024
5
Dr. Mercado is absolutely amazing and the best doctor I have ever had. I've never felt so comfortable with a healthcare professional as I do with her. She is caring beyond measures and extremely knowledgeable.
September 1, 2024
5
Just want to say I am always amaze concerning the cheerfulness they have for the patients they are treating.
September 1, 2024
5
Excellent care from Dr. Ada Mercado.
September 8, 2024
5
Our experience with Dr. Ada Mercado has always been excellent and we have been with her for several years now.
September 8, 2024
3
My appointment was at 1:30. Provider didn't come into the room until 2:20. No one followed up to make sure I was ok or to even explain why I was waiting so long. Provider was sweet but being that this was my first visit, I expected better.
September 8, 2024
5
Dr. Mercado always provides adequate time for consultation.
September 9, 2024
5
Dr. Mercado has been my doctor for several years now. She understands me, we can communicate, she explains things where I understand, she tells me if I'm right, if I'm wrong. I like her, I like her disposition, I like the way she handles me because I'm not a very easy patient. She is a great doctor. I would recommend her to anybody. Thank you. Bye.
September 11, 2024
5
Only issue is to hard to get appointment.
September 12, 2024
5
Great first experience with new office and doctor
September 13, 2024
Ada Mercado, MD
Cardiovascular Disease Specialist with Wellstar since 2010