WarningWarning
Our "Book Now" feature should not be used for life threatening conditions such as heart attack, severe injury, poisoning, chest pain, or stroke. If you are experiencing such conditions, STOP and CALL 911 IMMEDIATELY or visit your nearest Emergency Department.
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 533 patient ratings
I'd recommend this provider to family and friends
4.81
Listened to me carefully
4.60
Shared the right amount of information
4.58
Earned my trust
4.53
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
4
Everything was very good. Thank you.
April 17, 2024
5
Very trained doctor and above all, the care was compassionate.
April 14, 2024
5
Dr: Mercado is very thorough, professional, smart and educated. I celt confident that she cared about my personal health situation.
April 13, 2024
5
Dr. Mercado and staff was absolutely wonderful, They made me feel welcomed, Very knowledgeable, and friendly. Great job to all.
April 10, 2024
5
Great Doctor! Very helpful!
April 7, 2024
5
I was very impressed with the doctor and very glad I made the decision to make an appointment to see her.
April 6, 2024
4
Everything is fine.
April 7, 2024
5
I have great confidence inDr. Mercado! She is always very professional and makes me feel like I am her best patient?
April 3, 2024
5
Very good treatment as well as the medical staff and the doctor
April 3, 2024
5
Dr. Mercado is always caring and I feel safe in her care.
April 8, 2024
5
Very good
April 3, 2024
5
Could not ask for a better staff to assist me during my visit.
April 3, 2024
5
Amazing ?????
March 30, 2024
5
She took time to talk to me and I appreciated it. She did not rush me.
March 25, 2024
5
Dr. Mercado was excellent. Explained everything well. Patient access rep from 3/20 was a great help as well. She Went over and beyond.
March 25, 2024
5
Dr. Mercado was great. She took time to explain what caused my heart attack and the procedure that was performed. She explained the different medications and thier purpose. She mentioned one of the medications would cause bruising and I told her I wondered what caused it. I'm very pleased with and her patients and professionalism.
March 23, 2024
5
The care and concern with my issue was fantastic! I now have confidence that the adjustments with medication she suggested will improve my life and ability to walk with out issues walking. I would and have recommended them to many friends.
March 23, 2024
5
Nothing important, everything went very well for me
March 17, 2024
5
Dr Mercado is always great . And all her nurses
March 16, 2024
5
Dr Mercado listened to me and answered my questions. Examined me and let me know how I was doing. May me feel better told me I was doing well. Ordered another test just to be sure. She is a very though Doctor.
March 13, 2024
1
I didn't get the service I needed. She just talked and and I needed an EKG done. I just ended up losing $315.00!
March 9, 2024
2
I felt more like a co pay patient She rush me out within 3 min I left not knowing enough info to deal with my issues
March 9, 2024
5
Very friendly and informative
March 9, 2024
5
I am definitely very satisfied with the service at WellStar at Avalon Health Park.
March 9, 2024
3
I did wait in the room for about an hour to see the doctor.
March 8, 2024
5
very thorough,patient,helpful!!!
March 2, 2024
3
The doctor took good care of me and explained to me well about my many medications that I have to now take.
March 2, 2024
5
Fantastic doctor and staff
February 28, 2024
5
Thank you very much for the attention received.
February 26, 2024
5
Friendly, informative, thorough, enthusiastic "let's get this checked out now" attitude. Good communication from all staff involved in this visit
February 26, 2024
5
Very trained doctor and above all, the care was compassionate.
April 14, 2024
5
Dr: Mercado is very thorough, professional, smart and educated. I celt confident that she cared about my personal health situation.
April 13, 2024
5
Dr. Mercado and staff was absolutely wonderful, They made me feel welcomed, Very knowledgeable, and friendly. Great job to all.
April 10, 2024
5
Great Doctor! Very helpful!
April 7, 2024
5
I was very impressed with the doctor and very glad I made the decision to make an appointment to see her.
April 6, 2024
5
I have great confidence inDr. Mercado! She is always very professional and makes me feel like I am her best patient?
April 3, 2024
5
Very good treatment as well as the medical staff and the doctor
April 3, 2024
5
Dr. Mercado is always caring and I feel safe in her care.
April 8, 2024
5
Very good
April 3, 2024
5
Could not ask for a better staff to assist me during my visit.
April 3, 2024
5
Amazing ?????
March 30, 2024
5
She took time to talk to me and I appreciated it. She did not rush me.
March 25, 2024
5
Dr. Mercado was excellent. Explained everything well. Patient access rep from 3/20 was a great help as well. She Went over and beyond.
March 25, 2024
5
Dr. Mercado was great. She took time to explain what caused my heart attack and the procedure that was performed. She explained the different medications and thier purpose. She mentioned one of the medications would cause bruising and I told her I wondered what caused it. I'm very pleased with and her patients and professionalism.
March 23, 2024
5
The care and concern with my issue was fantastic! I now have confidence that the adjustments with medication she suggested will improve my life and ability to walk with out issues walking. I would and have recommended them to many friends.
March 23, 2024
5
Nothing important, everything went very well for me
March 17, 2024
5
Dr Mercado is always great . And all her nurses
March 16, 2024
5
Dr Mercado listened to me and answered my questions. Examined me and let me know how I was doing. May me feel better told me I was doing well. Ordered another test just to be sure. She is a very though Doctor.
March 13, 2024
5
Very friendly and informative
March 9, 2024
5
I am definitely very satisfied with the service at WellStar at Avalon Health Park.
March 9, 2024
5
very thorough,patient,helpful!!!
March 2, 2024
5
Fantastic doctor and staff
February 28, 2024
5
Thank you very much for the attention received.
February 26, 2024
5
Friendly, informative, thorough, enthusiastic "let's get this checked out now" attitude. Good communication from all staff involved in this visit
February 26, 2024
4
Everything was very good. Thank you.
April 17, 2024
4
Everything is fine.
April 7, 2024
3
I did wait in the room for about an hour to see the doctor.
March 8, 2024
3
The doctor took good care of me and explained to me well about my many medications that I have to now take.
March 2, 2024
2
I felt more like a co pay patient She rush me out within 3 min I left not knowing enough info to deal with my issues
March 9, 2024
1
I didn't get the service I needed. She just talked and and I needed an EKG done. I just ended up losing $315.00!
March 9, 2024
1
I didn't get the service I needed. She just talked and and I needed an EKG done. I just ended up losing $315.00!
March 9, 2024
2
I felt more like a co pay patient She rush me out within 3 min I left not knowing enough info to deal with my issues
March 9, 2024
3
I did wait in the room for about an hour to see the doctor.
March 8, 2024
3
The doctor took good care of me and explained to me well about my many medications that I have to now take.
March 2, 2024
4
Everything was very good. Thank you.
April 17, 2024
4
Everything is fine.
April 7, 2024
5
Very trained doctor and above all, the care was compassionate.
April 14, 2024
5
Dr: Mercado is very thorough, professional, smart and educated. I celt confident that she cared about my personal health situation.
April 13, 2024
5
Dr. Mercado and staff was absolutely wonderful, They made me feel welcomed, Very knowledgeable, and friendly. Great job to all.
April 10, 2024
5
Great Doctor! Very helpful!
April 7, 2024
5
I was very impressed with the doctor and very glad I made the decision to make an appointment to see her.
April 6, 2024
5
I have great confidence inDr. Mercado! She is always very professional and makes me feel like I am her best patient?
April 3, 2024
5
Very good treatment as well as the medical staff and the doctor
April 3, 2024
5
Dr. Mercado is always caring and I feel safe in her care.
April 8, 2024
5
Very good
April 3, 2024
5
Could not ask for a better staff to assist me during my visit.
April 3, 2024
5
Amazing ?????
March 30, 2024
5
She took time to talk to me and I appreciated it. She did not rush me.
March 25, 2024
5
Dr. Mercado was excellent. Explained everything well. Patient access rep from 3/20 was a great help as well. She Went over and beyond.
March 25, 2024
5
Dr. Mercado was great. She took time to explain what caused my heart attack and the procedure that was performed. She explained the different medications and thier purpose. She mentioned one of the medications would cause bruising and I told her I wondered what caused it. I'm very pleased with and her patients and professionalism.
March 23, 2024
5
The care and concern with my issue was fantastic! I now have confidence that the adjustments with medication she suggested will improve my life and ability to walk with out issues walking. I would and have recommended them to many friends.
March 23, 2024
5
Nothing important, everything went very well for me
March 17, 2024
5
Dr Mercado is always great . And all her nurses
March 16, 2024
5
Dr Mercado listened to me and answered my questions. Examined me and let me know how I was doing. May me feel better told me I was doing well. Ordered another test just to be sure. She is a very though Doctor.
March 13, 2024
5
Very friendly and informative
March 9, 2024
5
I am definitely very satisfied with the service at WellStar at Avalon Health Park.
March 9, 2024
5
very thorough,patient,helpful!!!
March 2, 2024
5
Fantastic doctor and staff
February 28, 2024
5
Thank you very much for the attention received.
February 26, 2024
5
Friendly, informative, thorough, enthusiastic "let's get this checked out now" attitude. Good communication from all staff involved in this visit
February 26, 2024
4
Everything was very good. Thank you.
April 17, 2024
5
Very trained doctor and above all, the care was compassionate.
April 14, 2024
5
Dr: Mercado is very thorough, professional, smart and educated. I celt confident that she cared about my personal health situation.
April 13, 2024
5
Dr. Mercado and staff was absolutely wonderful, They made me feel welcomed, Very knowledgeable, and friendly. Great job to all.
April 10, 2024
5
Dr. Mercado is always caring and I feel safe in her care.
April 8, 2024
5
Great Doctor! Very helpful!
April 7, 2024
4
Everything is fine.
April 7, 2024
5
I was very impressed with the doctor and very glad I made the decision to make an appointment to see her.
April 6, 2024
5
I have great confidence inDr. Mercado! She is always very professional and makes me feel like I am her best patient?
April 3, 2024
5
Very good
April 3, 2024
5
Could not ask for a better staff to assist me during my visit.
April 3, 2024
5
Very good treatment as well as the medical staff and the doctor
April 3, 2024
5
Amazing ?????
March 30, 2024
5
She took time to talk to me and I appreciated it. She did not rush me.
March 25, 2024
5
Dr. Mercado was excellent. Explained everything well. Patient access rep from 3/20 was a great help as well. She Went over and beyond.
March 25, 2024
5
Dr. Mercado was great. She took time to explain what caused my heart attack and the procedure that was performed. She explained the different medications and thier purpose. She mentioned one of the medications would cause bruising and I told her I wondered what caused it. I'm very pleased with and her patients and professionalism.
March 23, 2024
5
The care and concern with my issue was fantastic! I now have confidence that the adjustments with medication she suggested will improve my life and ability to walk with out issues walking. I would and have recommended them to many friends.
March 23, 2024
5
Nothing important, everything went very well for me
March 17, 2024
5
Dr Mercado is always great . And all her nurses
March 16, 2024
5
Dr Mercado listened to me and answered my questions. Examined me and let me know how I was doing. May me feel better told me I was doing well. Ordered another test just to be sure. She is a very though Doctor.
March 13, 2024
1
I didn't get the service I needed. She just talked and and I needed an EKG done. I just ended up losing $315.00!
March 9, 2024
2
I felt more like a co pay patient She rush me out within 3 min I left not knowing enough info to deal with my issues
March 9, 2024
5
Very friendly and informative
March 9, 2024
5
I am definitely very satisfied with the service at WellStar at Avalon Health Park.
March 9, 2024
3
I did wait in the room for about an hour to see the doctor.
March 8, 2024
5
very thorough,patient,helpful!!!
March 2, 2024
3
The doctor took good care of me and explained to me well about my many medications that I have to now take.
March 2, 2024
5
Fantastic doctor and staff
February 28, 2024
5
Friendly, informative, thorough, enthusiastic "let's get this checked out now" attitude. Good communication from all staff involved in this visit
February 26, 2024
5
Thank you very much for the attention received.
February 26, 2024
5
Thank you very much for the attention received.
February 26, 2024
5
Friendly, informative, thorough, enthusiastic "let's get this checked out now" attitude. Good communication from all staff involved in this visit
February 26, 2024
5
Fantastic doctor and staff
February 28, 2024
3
The doctor took good care of me and explained to me well about my many medications that I have to now take.
March 2, 2024
5
very thorough,patient,helpful!!!
March 2, 2024
3
I did wait in the room for about an hour to see the doctor.
March 8, 2024
5
I am definitely very satisfied with the service at WellStar at Avalon Health Park.
March 9, 2024
5
Very friendly and informative
March 9, 2024
2
I felt more like a co pay patient She rush me out within 3 min I left not knowing enough info to deal with my issues
March 9, 2024
1
I didn't get the service I needed. She just talked and and I needed an EKG done. I just ended up losing $315.00!
March 9, 2024
5
Dr Mercado listened to me and answered my questions. Examined me and let me know how I was doing. May me feel better told me I was doing well. Ordered another test just to be sure. She is a very though Doctor.
March 13, 2024
5
Dr Mercado is always great . And all her nurses
March 16, 2024
5
Nothing important, everything went very well for me
March 17, 2024
5
The care and concern with my issue was fantastic! I now have confidence that the adjustments with medication she suggested will improve my life and ability to walk with out issues walking. I would and have recommended them to many friends.
March 23, 2024
5
Dr. Mercado was great. She took time to explain what caused my heart attack and the procedure that was performed. She explained the different medications and thier purpose. She mentioned one of the medications would cause bruising and I told her I wondered what caused it. I'm very pleased with and her patients and professionalism.
March 23, 2024
5
Dr. Mercado was excellent. Explained everything well. Patient access rep from 3/20 was a great help as well. She Went over and beyond.
March 25, 2024
5
She took time to talk to me and I appreciated it. She did not rush me.
March 25, 2024
5
Amazing ?????
March 30, 2024
5
Very good treatment as well as the medical staff and the doctor
April 3, 2024
5
Could not ask for a better staff to assist me during my visit.
April 3, 2024
5
Very good
April 3, 2024
5
I have great confidence inDr. Mercado! She is always very professional and makes me feel like I am her best patient?
April 3, 2024
5
I was very impressed with the doctor and very glad I made the decision to make an appointment to see her.
April 6, 2024
4
Everything is fine.
April 7, 2024
5
Great Doctor! Very helpful!
April 7, 2024
5
Dr. Mercado is always caring and I feel safe in her care.
April 8, 2024
5
Dr. Mercado and staff was absolutely wonderful, They made me feel welcomed, Very knowledgeable, and friendly. Great job to all.
April 10, 2024
5
Dr: Mercado is very thorough, professional, smart and educated. I celt confident that she cared about my personal health situation.
April 13, 2024
5
Very trained doctor and above all, the care was compassionate.
April 14, 2024
4
Everything was very good. Thank you.
April 17, 2024
Ada Mercado, MD
Cardiovascular Disease Specialist with Wellstar since 2010