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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 525 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
4.52
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
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
Staff, nurse Sidney , and Dr Mercado were all excellent!
February 21, 2024
5
Very happy as my doctor.
February 19, 2024
5
Everyone in the clinic was helpful and professional.
February 15, 2024
3
Less than pleased with dr. Not really interested in questions or concerns. Staff was great though.
February 11, 2024
5
Dr. Mercado is excellent and caring about her patient
February 9, 2024
5
Just thank you for your service
February 9, 2024
5
Thank you.
February 4, 2024
5
Comfortable environment. Friendly staff
February 3, 2024
5
She is very personable.
February 3, 2024
5
My first experience at this office was amazing. Everyone was professional, polite and caring. Love my new Dr! She was so personable and listened to all of my concerns.. I am comfortable that I am in good hands!
February 2, 2024
5
Very happy with the attention provided and very professional by Dr. Mercado.
February 2, 2024
5
Very pleasant
January 27, 2024
5
Every time I go to my consultations, they assist me in the best possible way and are always attentive.
January 28, 2024
5
Dr. Mercado is a very gentle and loving Dr. Makes you satisfied.
January 20, 2024
4
The attention of all the staff at the Wellstar Clinic from the moment you enter until you leave.
January 24, 2024
5
The office staff are very kind and helpful. Dr Mercado is very professional, sweet, kind, and explained everything carefully. First time I like a cardiologist.
January 19, 2024
3
I would have liked to ask a few more questions about my present health as compared to previous visits .
January 11, 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
5
Staff, nurse Sidney , and Dr Mercado were all excellent!
February 21, 2024
5
Very happy as my doctor.
February 19, 2024
5
Everyone in the clinic was helpful and professional.
February 15, 2024
5
Dr. Mercado is excellent and caring about her patient
February 9, 2024
5
Just thank you for your service
February 9, 2024
5
Thank you.
February 4, 2024
5
Comfortable environment. Friendly staff
February 3, 2024
5
She is very personable.
February 3, 2024
5
My first experience at this office was amazing. Everyone was professional, polite and caring. Love my new Dr! She was so personable and listened to all of my concerns.. I am comfortable that I am in good hands!
February 2, 2024
5
Very happy with the attention provided and very professional by Dr. Mercado.
February 2, 2024
5
Very pleasant
January 27, 2024
5
Every time I go to my consultations, they assist me in the best possible way and are always attentive.
January 28, 2024
5
Dr. Mercado is a very gentle and loving Dr. Makes you satisfied.
January 20, 2024
5
The office staff are very kind and helpful. Dr Mercado is very professional, sweet, kind, and explained everything carefully. First time I like a cardiologist.
January 19, 2024
4
The attention of all the staff at the Wellstar Clinic from the moment you enter until you leave.
January 24, 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
3
Less than pleased with dr. Not really interested in questions or concerns. Staff was great though.
February 11, 2024
3
I would have liked to ask a few more questions about my present health as compared to previous visits .
January 11, 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
3
Less than pleased with dr. Not really interested in questions or concerns. Staff was great though.
February 11, 2024
3
I would have liked to ask a few more questions about my present health as compared to previous visits .
January 11, 2024
4
The attention of all the staff at the Wellstar Clinic from the moment you enter until you leave.
January 24, 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
5
Staff, nurse Sidney , and Dr Mercado were all excellent!
February 21, 2024
5
Very happy as my doctor.
February 19, 2024
5
Everyone in the clinic was helpful and professional.
February 15, 2024
5
Dr. Mercado is excellent and caring about her patient
February 9, 2024
5
Just thank you for your service
February 9, 2024
5
Thank you.
February 4, 2024
5
Comfortable environment. Friendly staff
February 3, 2024
5
She is very personable.
February 3, 2024
5
My first experience at this office was amazing. Everyone was professional, polite and caring. Love my new Dr! She was so personable and listened to all of my concerns.. I am comfortable that I am in good hands!
February 2, 2024
5
Very happy with the attention provided and very professional by Dr. Mercado.
February 2, 2024
5
Very pleasant
January 27, 2024
5
Every time I go to my consultations, they assist me in the best possible way and are always attentive.
January 28, 2024
5
Dr. Mercado is a very gentle and loving Dr. Makes you satisfied.
January 20, 2024
5
The office staff are very kind and helpful. Dr Mercado is very professional, sweet, kind, and explained everything carefully. First time I like a cardiologist.
January 19, 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
Staff, nurse Sidney , and Dr Mercado were all excellent!
February 21, 2024
5
Very happy as my doctor.
February 19, 2024
5
Everyone in the clinic was helpful and professional.
February 15, 2024
3
Less than pleased with dr. Not really interested in questions or concerns. Staff was great though.
February 11, 2024
5
Just thank you for your service
February 9, 2024
5
Dr. Mercado is excellent and caring about her patient
February 9, 2024
5
Thank you.
February 4, 2024
5
Comfortable environment. Friendly staff
February 3, 2024
5
She is very personable.
February 3, 2024
5
Very happy with the attention provided and very professional by Dr. Mercado.
February 2, 2024
5
My first experience at this office was amazing. Everyone was professional, polite and caring. Love my new Dr! She was so personable and listened to all of my concerns.. I am comfortable that I am in good hands!
February 2, 2024
5
Every time I go to my consultations, they assist me in the best possible way and are always attentive.
January 28, 2024
5
Very pleasant
January 27, 2024
4
The attention of all the staff at the Wellstar Clinic from the moment you enter until you leave.
January 24, 2024
5
Dr. Mercado is a very gentle and loving Dr. Makes you satisfied.
January 20, 2024
5
The office staff are very kind and helpful. Dr Mercado is very professional, sweet, kind, and explained everything carefully. First time I like a cardiologist.
January 19, 2024
3
I would have liked to ask a few more questions about my present health as compared to previous visits .
January 11, 2024
3
I would have liked to ask a few more questions about my present health as compared to previous visits .
January 11, 2024
5
The office staff are very kind and helpful. Dr Mercado is very professional, sweet, kind, and explained everything carefully. First time I like a cardiologist.
January 19, 2024
5
Dr. Mercado is a very gentle and loving Dr. Makes you satisfied.
January 20, 2024
4
The attention of all the staff at the Wellstar Clinic from the moment you enter until you leave.
January 24, 2024
5
Very pleasant
January 27, 2024
5
Every time I go to my consultations, they assist me in the best possible way and are always attentive.
January 28, 2024
5
My first experience at this office was amazing. Everyone was professional, polite and caring. Love my new Dr! She was so personable and listened to all of my concerns.. I am comfortable that I am in good hands!
February 2, 2024
5
Very happy with the attention provided and very professional by Dr. Mercado.
February 2, 2024
5
She is very personable.
February 3, 2024
5
Comfortable environment. Friendly staff
February 3, 2024
5
Thank you.
February 4, 2024
5
Dr. Mercado is excellent and caring about her patient
February 9, 2024
5
Just thank you for your service
February 9, 2024
3
Less than pleased with dr. Not really interested in questions or concerns. Staff was great though.
February 11, 2024
5
Everyone in the clinic was helpful and professional.
February 15, 2024
5
Very happy as my doctor.
February 19, 2024
5
Staff, nurse Sidney , and Dr Mercado were all excellent!
February 21, 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
Ada Mercado, MD
Cardiovascular Disease Specialist with Wellstar since 2010