Ada Mercado, MD
Specialties
Cardiovascular Disease
Cardiology
Education & Training
Doctor of Medicine
Ada Mercado, MD
Cardiovascular Disease Specialist with Wellstar since 2010.
Specialties
Cardiovascular Disease
Cardiology
Education & Training
Doctor of Medicine
Office Locations
Expertise
About Ada Mercado, MD
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
Degree
- Doctor of Medicine
Residency
- Ramon Betances HospitalMayaguez Medical Center
Fellowship
- Emory Healthcare/Emory University Hospital
- LSU Health Sciences Center
- Ponce School of Medicine
Certifications
- National Board of Physicians and Surgeons
Hospital Affiliations
- Wellstar Kennestone Hospital
- Wellstar North Fulton Hospital
- Wellstar Douglas Hospital
- Wellstar Cobb Hospital
Languages spoken
- English
- Spanish
Common Treatments, Conditions, and Procedures
- Atrial Fibrillation (Afib)
- Congestive Heart Failure
Patient Reviews
Overall patient rating
4.6Based on 528 patient ratings
- I'd recommend this practice to family and friends
-
- I'd recommend this provider to family and friends
-
- Listened to me carefully
-
- Shared the right amount of information
-
- Earned my trust
-
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
I congratulate them because, in general, their staff is very attentive and very professional. From the moment I walked into Green Romo, they showed kindness and made me feel comfortable explaining my condition. Dr. Mercado demonstrated her competence and professionalism by guiding me based on my condition and current situation.
April 18, 2025
5
Dr. Mercado is very considerate and a very good doctor, thank you.
April 19, 2025
5
The staff did not rush, they were very attentive and knowledgeable The doctors as always was amazing
April 10, 2025
5
Been going awhile to see this doctor and have never had an issue. I would recommend her to anyone. Wonderful doctor!
April 10, 2025
5
She did not ask me many questions ....
April 10, 2025
5
Dr. Mercado's experience and ethics reflects in the way she treated me in my first doctors appointment. Not just one more patient in my portfolio!!! She demonstrated me that humans are more important than what materialism is all about in our present society. Dr. Mercado goes above and beyond a previous cardiologist I had with Wellcare
April 4, 2025
5
Dr Mercado is friendly and very professional
March 31, 2025
4
The consultations are very quick, and there is no extra time to clarify all the doubts. Otherwise everything is excellent!
March 29, 2025
5
Always a good visit.
March 30, 2025
5
Just the waiting time. It was too long.
March 30, 2025
5
Dr. Mercado is Excellent. Explains everything so you understand it fully. Great bedside manner
March 28, 2025
5
Very good doctor and the entire team in that cardiology area
March 26, 2025
5
The staff and Dr. Mercado was very professional. The doctor listen to my concerns and needs.
March 26, 2025
5
Dr. Dr. Mercado and Staff, thanks for the thorough care!
March 26, 2025
5
Dr. Mercado was extremely informative and listened to each of my problems and is helping me get answers.
March 15, 2025
5
Dr. Mercado was"Excelente" !!!
March 13, 2025
5
I was able to quickly get checked in and did not have to wait at all before being called back to see Dr. Mercado. I felt she took the correct amount of time listening to my concerns and was able to give ample feedback in a caring manner.
March 6, 2025
5
As always, both Dr. Mercado and her staff were kind, helpful, and made me feel very comfortable. I have every confidence in them.
March 6, 2025
5
Everyone was great from the receptionist to the nurse and doctor.
March 5, 2025
5
Dr.Mercado is personable, cares about your recovery, always positive.
March 2, 2025
4
The office visit was fine today but whoever I spoke to to set up the appointment was rude and unhelpful.
February 24, 2025
5
Caring and friendly staff
February 19, 2025
5
I left there feeling like the doctor really heard me today and was very concerned about me. I really just hate the fact that it will take a month to get the test. I have been dealing with this chest pain since the 13th of December. Sometimes it's hard to understand why it takes so long to get these tests. But that has nothing to do with the doctor's office my doctor's visit was fine
February 19, 2025
5
The staff were extremely kind and Dr. Mercado is the best.
February 14, 2025
5
They are very friendly and professional.
February 14, 2025
4
Everyone was very friendly.
February 10, 2025
5
A very good experience. You come away relaxed.
February 9, 2025
5
The facility was clean & the service was very professional. You felt at home as soon as you arrived. Staff greeting you welcomed. Did not have to wait at all, which is extremely unusual for a doctor's office. The tech as well as the doctor were very experienced & efficient.
February 9, 2025
5
Only reason I said 9 was because this is my first time meeting Dr. Mercado. She was most helpful, showed that she understood why I was consulting her and gave me good information about steps moving forward.
February 1, 2025
3
It's extremely stressful to always have the practice running late with appts. We schedule time off to visit Dr based on appointment times and when your time comes and goes by 30 mins to 1 hr causes me to be late getting back to work. It's disrespectful to patients to always overbook and run so far behind
February 1, 2025
5
I congratulate them because, in general, their staff is very attentive and very professional. From the moment I walked into Green Romo, they showed kindness and made me feel comfortable explaining my condition. Dr. Mercado demonstrated her competence and professionalism by guiding me based on my condition and current situation.
April 18, 2025
5
Dr. Mercado is very considerate and a very good doctor, thank you.
April 19, 2025
5
The staff did not rush, they were very attentive and knowledgeable The doctors as always was amazing
April 10, 2025
5
Been going awhile to see this doctor and have never had an issue. I would recommend her to anyone. Wonderful doctor!
April 10, 2025
5
She did not ask me many questions ....
April 10, 2025
5
Dr. Mercado's experience and ethics reflects in the way she treated me in my first doctors appointment. Not just one more patient in my portfolio!!! She demonstrated me that humans are more important than what materialism is all about in our present society. Dr. Mercado goes above and beyond a previous cardiologist I had with Wellcare
April 4, 2025
5
Dr Mercado is friendly and very professional
March 31, 2025
5
Always a good visit.
March 30, 2025
5
Just the waiting time. It was too long.
March 30, 2025
5
Dr. Mercado is Excellent. Explains everything so you understand it fully. Great bedside manner
March 28, 2025
5
Very good doctor and the entire team in that cardiology area
March 26, 2025
5
The staff and Dr. Mercado was very professional. The doctor listen to my concerns and needs.
March 26, 2025
5
Dr. Dr. Mercado and Staff, thanks for the thorough care!
March 26, 2025
5
Dr. Mercado was extremely informative and listened to each of my problems and is helping me get answers.
March 15, 2025
5
Dr. Mercado was"Excelente" !!!
March 13, 2025
5
I was able to quickly get checked in and did not have to wait at all before being called back to see Dr. Mercado. I felt she took the correct amount of time listening to my concerns and was able to give ample feedback in a caring manner.
March 6, 2025
5
As always, both Dr. Mercado and her staff were kind, helpful, and made me feel very comfortable. I have every confidence in them.
March 6, 2025
5
Everyone was great from the receptionist to the nurse and doctor.
March 5, 2025
5
Dr.Mercado is personable, cares about your recovery, always positive.
March 2, 2025
5
Caring and friendly staff
February 19, 2025
5
I left there feeling like the doctor really heard me today and was very concerned about me. I really just hate the fact that it will take a month to get the test. I have been dealing with this chest pain since the 13th of December. Sometimes it's hard to understand why it takes so long to get these tests. But that has nothing to do with the doctor's office my doctor's visit was fine
February 19, 2025
5
The staff were extremely kind and Dr. Mercado is the best.
February 14, 2025
5
They are very friendly and professional.
February 14, 2025
5
A very good experience. You come away relaxed.
February 9, 2025
5
The facility was clean & the service was very professional. You felt at home as soon as you arrived. Staff greeting you welcomed. Did not have to wait at all, which is extremely unusual for a doctor's office. The tech as well as the doctor were very experienced & efficient.
February 9, 2025
5
Only reason I said 9 was because this is my first time meeting Dr. Mercado. She was most helpful, showed that she understood why I was consulting her and gave me good information about steps moving forward.
February 1, 2025
4
The consultations are very quick, and there is no extra time to clarify all the doubts. Otherwise everything is excellent!
March 29, 2025
4
The office visit was fine today but whoever I spoke to to set up the appointment was rude and unhelpful.
February 24, 2025
4
Everyone was very friendly.
February 10, 2025
3
It's extremely stressful to always have the practice running late with appts. We schedule time off to visit Dr based on appointment times and when your time comes and goes by 30 mins to 1 hr causes me to be late getting back to work. It's disrespectful to patients to always overbook and run so far behind
February 1, 2025
3
It's extremely stressful to always have the practice running late with appts. We schedule time off to visit Dr based on appointment times and when your time comes and goes by 30 mins to 1 hr causes me to be late getting back to work. It's disrespectful to patients to always overbook and run so far behind
February 1, 2025
4
The consultations are very quick, and there is no extra time to clarify all the doubts. Otherwise everything is excellent!
March 29, 2025
4
The office visit was fine today but whoever I spoke to to set up the appointment was rude and unhelpful.
February 24, 2025
4
Everyone was very friendly.
February 10, 2025
5
I congratulate them because, in general, their staff is very attentive and very professional. From the moment I walked into Green Romo, they showed kindness and made me feel comfortable explaining my condition. Dr. Mercado demonstrated her competence and professionalism by guiding me based on my condition and current situation.
April 18, 2025
5
Dr. Mercado is very considerate and a very good doctor, thank you.
April 19, 2025
5
The staff did not rush, they were very attentive and knowledgeable The doctors as always was amazing
April 10, 2025
5
Been going awhile to see this doctor and have never had an issue. I would recommend her to anyone. Wonderful doctor!
April 10, 2025
5
She did not ask me many questions ....
April 10, 2025
5
Dr. Mercado's experience and ethics reflects in the way she treated me in my first doctors appointment. Not just one more patient in my portfolio!!! She demonstrated me that humans are more important than what materialism is all about in our present society. Dr. Mercado goes above and beyond a previous cardiologist I had with Wellcare
April 4, 2025
5
Dr Mercado is friendly and very professional
March 31, 2025
5
Always a good visit.
March 30, 2025
5
Just the waiting time. It was too long.
March 30, 2025
5
Dr. Mercado is Excellent. Explains everything so you understand it fully. Great bedside manner
March 28, 2025
5
Very good doctor and the entire team in that cardiology area
March 26, 2025
5
The staff and Dr. Mercado was very professional. The doctor listen to my concerns and needs.
March 26, 2025
5
Dr. Dr. Mercado and Staff, thanks for the thorough care!
March 26, 2025
5
Dr. Mercado was extremely informative and listened to each of my problems and is helping me get answers.
March 15, 2025
5
Dr. Mercado was"Excelente" !!!
March 13, 2025
5
I was able to quickly get checked in and did not have to wait at all before being called back to see Dr. Mercado. I felt she took the correct amount of time listening to my concerns and was able to give ample feedback in a caring manner.
March 6, 2025
5
As always, both Dr. Mercado and her staff were kind, helpful, and made me feel very comfortable. I have every confidence in them.
March 6, 2025
5
Everyone was great from the receptionist to the nurse and doctor.
March 5, 2025
5
Dr.Mercado is personable, cares about your recovery, always positive.
March 2, 2025
5
Caring and friendly staff
February 19, 2025
5
I left there feeling like the doctor really heard me today and was very concerned about me. I really just hate the fact that it will take a month to get the test. I have been dealing with this chest pain since the 13th of December. Sometimes it's hard to understand why it takes so long to get these tests. But that has nothing to do with the doctor's office my doctor's visit was fine
February 19, 2025
5
The staff were extremely kind and Dr. Mercado is the best.
February 14, 2025
5
They are very friendly and professional.
February 14, 2025
5
A very good experience. You come away relaxed.
February 9, 2025
5
The facility was clean & the service was very professional. You felt at home as soon as you arrived. Staff greeting you welcomed. Did not have to wait at all, which is extremely unusual for a doctor's office. The tech as well as the doctor were very experienced & efficient.
February 9, 2025
5
Only reason I said 9 was because this is my first time meeting Dr. Mercado. She was most helpful, showed that she understood why I was consulting her and gave me good information about steps moving forward.
February 1, 2025
5
Dr. Mercado is very considerate and a very good doctor, thank you.
April 19, 2025
5
I congratulate them because, in general, their staff is very attentive and very professional. From the moment I walked into Green Romo, they showed kindness and made me feel comfortable explaining my condition. Dr. Mercado demonstrated her competence and professionalism by guiding me based on my condition and current situation.
April 18, 2025
5
Been going awhile to see this doctor and have never had an issue. I would recommend her to anyone. Wonderful doctor!
April 10, 2025
5
The staff did not rush, they were very attentive and knowledgeable The doctors as always was amazing
April 10, 2025
5
She did not ask me many questions ....
April 10, 2025
5
Dr. Mercado's experience and ethics reflects in the way she treated me in my first doctors appointment. Not just one more patient in my portfolio!!! She demonstrated me that humans are more important than what materialism is all about in our present society. Dr. Mercado goes above and beyond a previous cardiologist I had with Wellcare
April 4, 2025
5
Dr Mercado is friendly and very professional
March 31, 2025
5
Always a good visit.
March 30, 2025
5
Just the waiting time. It was too long.
March 30, 2025
4
The consultations are very quick, and there is no extra time to clarify all the doubts. Otherwise everything is excellent!
March 29, 2025
5
Dr. Mercado is Excellent. Explains everything so you understand it fully. Great bedside manner
March 28, 2025
5
The staff and Dr. Mercado was very professional. The doctor listen to my concerns and needs.
March 26, 2025
5
Very good doctor and the entire team in that cardiology area
March 26, 2025
5
Dr. Dr. Mercado and Staff, thanks for the thorough care!
March 26, 2025
5
Dr. Mercado was extremely informative and listened to each of my problems and is helping me get answers.
March 15, 2025
5
Dr. Mercado was"Excelente" !!!
March 13, 2025
5
I was able to quickly get checked in and did not have to wait at all before being called back to see Dr. Mercado. I felt she took the correct amount of time listening to my concerns and was able to give ample feedback in a caring manner.
March 6, 2025
5
As always, both Dr. Mercado and her staff were kind, helpful, and made me feel very comfortable. I have every confidence in them.
March 6, 2025
5
Everyone was great from the receptionist to the nurse and doctor.
March 5, 2025
5
Dr.Mercado is personable, cares about your recovery, always positive.
March 2, 2025
4
The office visit was fine today but whoever I spoke to to set up the appointment was rude and unhelpful.
February 24, 2025
5
Caring and friendly staff
February 19, 2025
5
I left there feeling like the doctor really heard me today and was very concerned about me. I really just hate the fact that it will take a month to get the test. I have been dealing with this chest pain since the 13th of December. Sometimes it's hard to understand why it takes so long to get these tests. But that has nothing to do with the doctor's office my doctor's visit was fine
February 19, 2025
5
The staff were extremely kind and Dr. Mercado is the best.
February 14, 2025
5
They are very friendly and professional.
February 14, 2025
4
Everyone was very friendly.
February 10, 2025
5
A very good experience. You come away relaxed.
February 9, 2025
5
The facility was clean & the service was very professional. You felt at home as soon as you arrived. Staff greeting you welcomed. Did not have to wait at all, which is extremely unusual for a doctor's office. The tech as well as the doctor were very experienced & efficient.
February 9, 2025
3
It's extremely stressful to always have the practice running late with appts. We schedule time off to visit Dr based on appointment times and when your time comes and goes by 30 mins to 1 hr causes me to be late getting back to work. It's disrespectful to patients to always overbook and run so far behind
February 1, 2025
5
Only reason I said 9 was because this is my first time meeting Dr. Mercado. She was most helpful, showed that she understood why I was consulting her and gave me good information about steps moving forward.
February 1, 2025
5
Only reason I said 9 was because this is my first time meeting Dr. Mercado. She was most helpful, showed that she understood why I was consulting her and gave me good information about steps moving forward.
February 1, 2025
3
It's extremely stressful to always have the practice running late with appts. We schedule time off to visit Dr based on appointment times and when your time comes and goes by 30 mins to 1 hr causes me to be late getting back to work. It's disrespectful to patients to always overbook and run so far behind
February 1, 2025
5
The facility was clean & the service was very professional. You felt at home as soon as you arrived. Staff greeting you welcomed. Did not have to wait at all, which is extremely unusual for a doctor's office. The tech as well as the doctor were very experienced & efficient.
February 9, 2025
5
A very good experience. You come away relaxed.
February 9, 2025
4
Everyone was very friendly.
February 10, 2025
5
They are very friendly and professional.
February 14, 2025
5
The staff were extremely kind and Dr. Mercado is the best.
February 14, 2025
5
I left there feeling like the doctor really heard me today and was very concerned about me. I really just hate the fact that it will take a month to get the test. I have been dealing with this chest pain since the 13th of December. Sometimes it's hard to understand why it takes so long to get these tests. But that has nothing to do with the doctor's office my doctor's visit was fine
February 19, 2025
5
Caring and friendly staff
February 19, 2025
4
The office visit was fine today but whoever I spoke to to set up the appointment was rude and unhelpful.
February 24, 2025
5
Dr.Mercado is personable, cares about your recovery, always positive.
March 2, 2025
5
Everyone was great from the receptionist to the nurse and doctor.
March 5, 2025
5
As always, both Dr. Mercado and her staff were kind, helpful, and made me feel very comfortable. I have every confidence in them.
March 6, 2025
5
I was able to quickly get checked in and did not have to wait at all before being called back to see Dr. Mercado. I felt she took the correct amount of time listening to my concerns and was able to give ample feedback in a caring manner.
March 6, 2025
5
Dr. Mercado was"Excelente" !!!
March 13, 2025
5
Dr. Mercado was extremely informative and listened to each of my problems and is helping me get answers.
March 15, 2025
5
Dr. Dr. Mercado and Staff, thanks for the thorough care!
March 26, 2025
5
Very good doctor and the entire team in that cardiology area
March 26, 2025
5
The staff and Dr. Mercado was very professional. The doctor listen to my concerns and needs.
March 26, 2025
5
Dr. Mercado is Excellent. Explains everything so you understand it fully. Great bedside manner
March 28, 2025
4
The consultations are very quick, and there is no extra time to clarify all the doubts. Otherwise everything is excellent!
March 29, 2025
5
Just the waiting time. It was too long.
March 30, 2025
5
Always a good visit.
March 30, 2025
5
Dr Mercado is friendly and very professional
March 31, 2025
5
Dr. Mercado's experience and ethics reflects in the way she treated me in my first doctors appointment. Not just one more patient in my portfolio!!! She demonstrated me that humans are more important than what materialism is all about in our present society. Dr. Mercado goes above and beyond a previous cardiologist I had with Wellcare
April 4, 2025
5
She did not ask me many questions ....
April 10, 2025
5
The staff did not rush, they were very attentive and knowledgeable The doctors as always was amazing
April 10, 2025
5
Been going awhile to see this doctor and have never had an issue. I would recommend her to anyone. Wonderful doctor!
April 10, 2025
5
I congratulate them because, in general, their staff is very attentive and very professional. From the moment I walked into Green Romo, they showed kindness and made me feel comfortable explaining my condition. Dr. Mercado demonstrated her competence and professionalism by guiding me based on my condition and current situation.
April 18, 2025
5
Dr. Mercado is very considerate and a very good doctor, thank you.
April 19, 2025
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