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https://mychart.wellstar.org/mychart/signupandschedule/embeddedschedule?vt=1003&id=1982620811&view=plain

Ada Mercado, MD

Specialties

Cardiovascular Disease
Cardiology

Education & Training

Doctor of Medicine

Book an appointment

Ada Mercado, MD

Cardiovascular Disease Specialist with Wellstar since 2010.

Specialties

Cardiovascular Disease
Cardiology

Education & Training

Doctor of Medicine

Cardiovascular Disease Specialist with Wellstar since 2010
  • Member of the Wellstar Medical Group A friendly headshot of Ada Mercado, MD Ada Mercado, MD
  • Office Locations
  • Expertise
  • Patient Reviews

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

4.6

Based on 550 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

It was a wonderful experience.

July 12, 2025

5

Dr. Mercado is a caring doctor, as well as being very thorough and knowledgeable. Her nurse and the rest of the staff are wonderful , too.

July 11, 2025

4

Trust isn't built in 20 minutes. The framing of these questions isn't optimal for a new patient visit. The nurse and physician were friendly and respectful.

July 11, 2025

5

I was delighted they called me into the examining room 20 minutes before my scheduled appointment. Thank you.

July 9, 2025

5

Always good

July 4, 2025

5

Always a great friendly staff and Dr.is perfect for me. I am comfortable there.

July 4, 2025

5

Congratulations on having a very well-trained staff.

June 27, 2025

5

Excellent service from all staff.

June 26, 2025

5

Im so thankfull for all your care and support all this time, you guys make me fiel in good hands, God Bless you !

June 22, 2025

5

Dr Mercado and her staff are professional, knowledgeable, polite, caring and phenomenal care givers. I strongly recommend them based on my personal experiences with the practice and Dr Mercado.

June 20, 2025

5

All coronary personnel were absolutely excelllent. Very knowledgeable and caring!

June 19, 2025

5

It was a very thorough examination and great information was shared. The young woman who performed the first steps in the examination was very friendly and helpful. I wish I got her name but I do know she has a birthday coming up a week after mine.

June 14, 2025

5

Extremely impressed how I was taken care. I felt really special. Impressed how everything runs so efficiently.

June 12, 2025

5

We love Dr. Mercado!!! She is exceptional. We have been going to her for years and would not change!!!

June 11, 2025

5

I hope appointment keep on time because my appointment was at 3:30 pm I got 3:15 as indicated and doctor came to room 4:25 pm and looks that I was last patient and all staff were talking and laughing and I am still in the room waiting for the doctor .

May 25, 2025

5

I arrived at the exact time, at 1:00 p.m. and they attended me at 1:30 p.m.

May 23, 2025

5

Excellent service from the entire team, from the front desk to the nurses and of course, the doctor. Very grateful.

May 22, 2025

4

Multiple messages said to be at the office at 9:45. I was there at 915. My appointment was at 10. I completed sign in on my chart well before my arrival. I was not not called back to my appointment until 1030 and my appointment was was not complete until 11. There was only v/s taken no EKG and only 5 minutes with the doctor. I respect the office's time, but do not feel they respect my time.

May 21, 2025

5

All good.

May 18, 2025

5

I recommend Dr Mercado to friends and family with heart questions or concerns

May 16, 2025

5

Dr Mercado and all her team members were very professional, kind and helpful. Best group of people!

May 8, 2025

5

Scheduling and reception staff were very professional.

May 2, 2025

5

Everyone was kind and professional. The woman at the front desk was especially pleasant and I thanked her for it. Dr. Mercado was wonderful.

April 30, 2025

5

I feel very comfortable with the whole staff

April 30, 2025

5

Good experience

April 30, 2025

5

I have been a patient with Dr.Mercado for nearly 13 years

April 30, 2025

5

Very good

April 27, 2025

5

The love and kindness was very much appreciated. Thank you so much. A great staff. Thank you and a wonderful doctor. Bye-bye.

April 30, 2025

5

No comments, everything is excellent.

April 27, 2025

5

Good kindness and excellent professionalism

April 27, 2025

5

It was a wonderful experience.

July 12, 2025

5

Dr. Mercado is a caring doctor, as well as being very thorough and knowledgeable. Her nurse and the rest of the staff are wonderful , too.

July 11, 2025

5

I was delighted they called me into the examining room 20 minutes before my scheduled appointment. Thank you.

July 9, 2025

5

Always good

July 4, 2025

5

Always a great friendly staff and Dr.is perfect for me. I am comfortable there.

July 4, 2025

5

Congratulations on having a very well-trained staff.

June 27, 2025

5

Excellent service from all staff.

June 26, 2025

5

Im so thankfull for all your care and support all this time, you guys make me fiel in good hands, God Bless you !

June 22, 2025

5

Dr Mercado and her staff are professional, knowledgeable, polite, caring and phenomenal care givers. I strongly recommend them based on my personal experiences with the practice and Dr Mercado.

June 20, 2025

5

All coronary personnel were absolutely excelllent. Very knowledgeable and caring!

June 19, 2025

5

It was a very thorough examination and great information was shared. The young woman who performed the first steps in the examination was very friendly and helpful. I wish I got her name but I do know she has a birthday coming up a week after mine.

June 14, 2025

5

Extremely impressed how I was taken care. I felt really special. Impressed how everything runs so efficiently.

June 12, 2025

5

We love Dr. Mercado!!! She is exceptional. We have been going to her for years and would not change!!!

June 11, 2025

5

I hope appointment keep on time because my appointment was at 3:30 pm I got 3:15 as indicated and doctor came to room 4:25 pm and looks that I was last patient and all staff were talking and laughing and I am still in the room waiting for the doctor .

May 25, 2025

5

I arrived at the exact time, at 1:00 p.m. and they attended me at 1:30 p.m.

May 23, 2025

5

Excellent service from the entire team, from the front desk to the nurses and of course, the doctor. Very grateful.

May 22, 2025

5

All good.

May 18, 2025

5

I recommend Dr Mercado to friends and family with heart questions or concerns

May 16, 2025

5

Dr Mercado and all her team members were very professional, kind and helpful. Best group of people!

May 8, 2025

5

Scheduling and reception staff were very professional.

May 2, 2025

5

Everyone was kind and professional. The woman at the front desk was especially pleasant and I thanked her for it. Dr. Mercado was wonderful.

April 30, 2025

5

I feel very comfortable with the whole staff

April 30, 2025

5

Good experience

April 30, 2025

5

I have been a patient with Dr.Mercado for nearly 13 years

April 30, 2025

5

Very good

April 27, 2025

5

The love and kindness was very much appreciated. Thank you so much. A great staff. Thank you and a wonderful doctor. Bye-bye.

April 30, 2025

5

No comments, everything is excellent.

April 27, 2025

5

Good kindness and excellent professionalism

April 27, 2025

4

Trust isn't built in 20 minutes. The framing of these questions isn't optimal for a new patient visit. The nurse and physician were friendly and respectful.

July 11, 2025

4

Multiple messages said to be at the office at 9:45. I was there at 915. My appointment was at 10. I completed sign in on my chart well before my arrival. I was not not called back to my appointment until 1030 and my appointment was was not complete until 11. There was only v/s taken no EKG and only 5 minutes with the doctor. I respect the office's time, but do not feel they respect my time.

May 21, 2025

4

Trust isn't built in 20 minutes. The framing of these questions isn't optimal for a new patient visit. The nurse and physician were friendly and respectful.

July 11, 2025

4

Multiple messages said to be at the office at 9:45. I was there at 915. My appointment was at 10. I completed sign in on my chart well before my arrival. I was not not called back to my appointment until 1030 and my appointment was was not complete until 11. There was only v/s taken no EKG and only 5 minutes with the doctor. I respect the office's time, but do not feel they respect my time.

May 21, 2025

5

It was a wonderful experience.

July 12, 2025

5

Dr. Mercado is a caring doctor, as well as being very thorough and knowledgeable. Her nurse and the rest of the staff are wonderful , too.

July 11, 2025

5

I was delighted they called me into the examining room 20 minutes before my scheduled appointment. Thank you.

July 9, 2025

5

Always good

July 4, 2025

5

Always a great friendly staff and Dr.is perfect for me. I am comfortable there.

July 4, 2025

5

Congratulations on having a very well-trained staff.

June 27, 2025

5

Excellent service from all staff.

June 26, 2025

5

Im so thankfull for all your care and support all this time, you guys make me fiel in good hands, God Bless you !

June 22, 2025

5

Dr Mercado and her staff are professional, knowledgeable, polite, caring and phenomenal care givers. I strongly recommend them based on my personal experiences with the practice and Dr Mercado.

June 20, 2025

5

All coronary personnel were absolutely excelllent. Very knowledgeable and caring!

June 19, 2025

5

It was a very thorough examination and great information was shared. The young woman who performed the first steps in the examination was very friendly and helpful. I wish I got her name but I do know she has a birthday coming up a week after mine.

June 14, 2025

5

Extremely impressed how I was taken care. I felt really special. Impressed how everything runs so efficiently.

June 12, 2025

5

We love Dr. Mercado!!! She is exceptional. We have been going to her for years and would not change!!!

June 11, 2025

5

I hope appointment keep on time because my appointment was at 3:30 pm I got 3:15 as indicated and doctor came to room 4:25 pm and looks that I was last patient and all staff were talking and laughing and I am still in the room waiting for the doctor .

May 25, 2025

5

I arrived at the exact time, at 1:00 p.m. and they attended me at 1:30 p.m.

May 23, 2025

5

Excellent service from the entire team, from the front desk to the nurses and of course, the doctor. Very grateful.

May 22, 2025

5

All good.

May 18, 2025

5

I recommend Dr Mercado to friends and family with heart questions or concerns

May 16, 2025

5

Dr Mercado and all her team members were very professional, kind and helpful. Best group of people!

May 8, 2025

5

Scheduling and reception staff were very professional.

May 2, 2025

5

Everyone was kind and professional. The woman at the front desk was especially pleasant and I thanked her for it. Dr. Mercado was wonderful.

April 30, 2025

5

I feel very comfortable with the whole staff

April 30, 2025

5

Good experience

April 30, 2025

5

I have been a patient with Dr.Mercado for nearly 13 years

April 30, 2025

5

Very good

April 27, 2025

5

The love and kindness was very much appreciated. Thank you so much. A great staff. Thank you and a wonderful doctor. Bye-bye.

April 30, 2025

5

No comments, everything is excellent.

April 27, 2025

5

Good kindness and excellent professionalism

April 27, 2025

5

It was a wonderful experience.

July 12, 2025

5

Dr. Mercado is a caring doctor, as well as being very thorough and knowledgeable. Her nurse and the rest of the staff are wonderful , too.

July 11, 2025

4

Trust isn't built in 20 minutes. The framing of these questions isn't optimal for a new patient visit. The nurse and physician were friendly and respectful.

July 11, 2025

5

I was delighted they called me into the examining room 20 minutes before my scheduled appointment. Thank you.

July 9, 2025

5

Always good

July 4, 2025

5

Always a great friendly staff and Dr.is perfect for me. I am comfortable there.

July 4, 2025

5

Congratulations on having a very well-trained staff.

June 27, 2025

5

Excellent service from all staff.

June 26, 2025

5

Im so thankfull for all your care and support all this time, you guys make me fiel in good hands, God Bless you !

June 22, 2025

5

Dr Mercado and her staff are professional, knowledgeable, polite, caring and phenomenal care givers. I strongly recommend them based on my personal experiences with the practice and Dr Mercado.

June 20, 2025

5

All coronary personnel were absolutely excelllent. Very knowledgeable and caring!

June 19, 2025

5

It was a very thorough examination and great information was shared. The young woman who performed the first steps in the examination was very friendly and helpful. I wish I got her name but I do know she has a birthday coming up a week after mine.

June 14, 2025

5

Extremely impressed how I was taken care. I felt really special. Impressed how everything runs so efficiently.

June 12, 2025

5

We love Dr. Mercado!!! She is exceptional. We have been going to her for years and would not change!!!

June 11, 2025

5

I hope appointment keep on time because my appointment was at 3:30 pm I got 3:15 as indicated and doctor came to room 4:25 pm and looks that I was last patient and all staff were talking and laughing and I am still in the room waiting for the doctor .

May 25, 2025

5

I arrived at the exact time, at 1:00 p.m. and they attended me at 1:30 p.m.

May 23, 2025

5

Excellent service from the entire team, from the front desk to the nurses and of course, the doctor. Very grateful.

May 22, 2025

4

Multiple messages said to be at the office at 9:45. I was there at 915. My appointment was at 10. I completed sign in on my chart well before my arrival. I was not not called back to my appointment until 1030 and my appointment was was not complete until 11. There was only v/s taken no EKG and only 5 minutes with the doctor. I respect the office's time, but do not feel they respect my time.

May 21, 2025

5

All good.

May 18, 2025

5

I recommend Dr Mercado to friends and family with heart questions or concerns

May 16, 2025

5

Dr Mercado and all her team members were very professional, kind and helpful. Best group of people!

May 8, 2025

5

Scheduling and reception staff were very professional.

May 2, 2025

5

The love and kindness was very much appreciated. Thank you so much. A great staff. Thank you and a wonderful doctor. Bye-bye.

April 30, 2025

5

Everyone was kind and professional. The woman at the front desk was especially pleasant and I thanked her for it. Dr. Mercado was wonderful.

April 30, 2025

5

I have been a patient with Dr.Mercado for nearly 13 years

April 30, 2025

5

I feel very comfortable with the whole staff

April 30, 2025

5

Good experience

April 30, 2025

5

No comments, everything is excellent.

April 27, 2025

5

Very good

April 27, 2025

5

Good kindness and excellent professionalism

April 27, 2025

5

Good kindness and excellent professionalism

April 27, 2025

5

Very good

April 27, 2025

5

No comments, everything is excellent.

April 27, 2025

5

Good experience

April 30, 2025

5

I feel very comfortable with the whole staff

April 30, 2025

5

I have been a patient with Dr.Mercado for nearly 13 years

April 30, 2025

5

Everyone was kind and professional. The woman at the front desk was especially pleasant and I thanked her for it. Dr. Mercado was wonderful.

April 30, 2025

5

The love and kindness was very much appreciated. Thank you so much. A great staff. Thank you and a wonderful doctor. Bye-bye.

April 30, 2025

5

Scheduling and reception staff were very professional.

May 2, 2025

5

Dr Mercado and all her team members were very professional, kind and helpful. Best group of people!

May 8, 2025

5

I recommend Dr Mercado to friends and family with heart questions or concerns

May 16, 2025

5

All good.

May 18, 2025

4

Multiple messages said to be at the office at 9:45. I was there at 915. My appointment was at 10. I completed sign in on my chart well before my arrival. I was not not called back to my appointment until 1030 and my appointment was was not complete until 11. There was only v/s taken no EKG and only 5 minutes with the doctor. I respect the office's time, but do not feel they respect my time.

May 21, 2025

5

Excellent service from the entire team, from the front desk to the nurses and of course, the doctor. Very grateful.

May 22, 2025

5

I arrived at the exact time, at 1:00 p.m. and they attended me at 1:30 p.m.

May 23, 2025

5

I hope appointment keep on time because my appointment was at 3:30 pm I got 3:15 as indicated and doctor came to room 4:25 pm and looks that I was last patient and all staff were talking and laughing and I am still in the room waiting for the doctor .

May 25, 2025

5

We love Dr. Mercado!!! She is exceptional. We have been going to her for years and would not change!!!

June 11, 2025

5

Extremely impressed how I was taken care. I felt really special. Impressed how everything runs so efficiently.

June 12, 2025

5

It was a very thorough examination and great information was shared. The young woman who performed the first steps in the examination was very friendly and helpful. I wish I got her name but I do know she has a birthday coming up a week after mine.

June 14, 2025

5

All coronary personnel were absolutely excelllent. Very knowledgeable and caring!

June 19, 2025

5

Dr Mercado and her staff are professional, knowledgeable, polite, caring and phenomenal care givers. I strongly recommend them based on my personal experiences with the practice and Dr Mercado.

June 20, 2025

5

Im so thankfull for all your care and support all this time, you guys make me fiel in good hands, God Bless you !

June 22, 2025

5

Excellent service from all staff.

June 26, 2025

5

Congratulations on having a very well-trained staff.

June 27, 2025

5

Always a great friendly staff and Dr.is perfect for me. I am comfortable there.

July 4, 2025

5

Always good

July 4, 2025

5

I was delighted they called me into the examining room 20 minutes before my scheduled appointment. Thank you.

July 9, 2025

4

Trust isn't built in 20 minutes. The framing of these questions isn't optimal for a new patient visit. The nurse and physician were friendly and respectful.

July 11, 2025

5

Dr. Mercado is a caring doctor, as well as being very thorough and knowledgeable. Her nurse and the rest of the staff are wonderful , too.

July 11, 2025

5

It was a wonderful experience.

July 12, 2025

Book an appointment
Ada Mercado, MD
Cardiovascular Disease Specialist with Wellstar since 2010
Rating
4.6
Specialties
Cardiovascular Disease , Cardiology
Education
Doctor of Medicine
Medical School
Universidad Nacional Pedro Henriquez Urena
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
Spoken Languages
English and Spanish
Hospital Affiliations
Wellstar Kennestone Hospital
Wellstar North Fulton Hospital
Wellstar Douglas Hospital
Wellstar Cobb Hospital
Office Locations
www.wellstar.org/physicians/ada-mercado-md
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