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A native of Caguas, Puerto Rico, Dr. Hernandez received his undergraduate degree from University of Puerto Rico in Rio Piedras and attended medical school at Universidad Central del Caribe in Puerto Rico. He completed his internal medicine residency in the Veteran Administration Medical Center in San Juan, and his Cardiovascular Disease fellowship in Ponce School of Medicine Damas and Saint Luke Hospital. Dr. Hernandez also completed a proctorship in interventional cardiology at the Missouri Baptist Medical Center part of BJC Healthcare. He then went on to complete his nuclear cardiology training at Emory University in Atlanta.
Dr. Hernandez is board certified in Cardiovascular Disease, and a fellow of the American College of Cardiology. His special interests include general cardiology, Invasive, and Interventional Cardiology.
Dr. Hernandez joined Wellstar Medical Group, Cardiovascular Medicine in January 2011 after being part of the Atlanta Heart Center since 2002 where he was a founding physician. He is currently on staff at Wellstar Kennestone hospital.
Specialties
Cardiovascular Disease
Education & Training
Universidad Central del Caribe
Degree
Doctor of Medicine
Residency
VA Medical Center San Juan
Fellowship
Ponce School of Medicine
Certifications
National Board of Physicians and Surgeons
Hospital Affiliations
Wellstar Kennestone Hospital
Wellstar North Fulton Hospital
Wellstar Cobb Hospital
Wellstar Douglas Hospital
Wellstar Paulding Medical Center
Wellstar Windy Hill Hospital
Languages spoken
English
Spanish
Common Treatments, Conditions, and Procedures
Atrial Fibrillation (Afib)
Congestive Heart Failure
High Blood Pressure
High Cholesterol
Stroke
Patient Reviews
Overall patient rating
4.8
Based on 311 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
Everything was great ,staff awesome
August 20, 2026
5
As always they care about you. Great staff of nurses
August 14, 2026
5
Everyone was very kind, from the gentleman who greeted us at the entrance, helping us start the day with his warm welcome, guiding us to the office, and bidding us farewell very kindly... The registration staff facilitated the entire process, and the doctor was very approachable and professional.
August 9, 2026
5
The staff is always very welcoming at check in and rooming. Dr. Hernandez listens to me and I don't feel rushed.
August 12, 2026
5
My doctor's the best doctor in the whole world. That's all.
August 9, 2026
5
Very professional
August 7, 2026
5
Dr. Hernandez listens to my concerns and questions. He answers questions, offers advice and schedules tests to investigate further. I have complete confidence in him.
July 23, 2026
5
It was excellent
July 19, 2026
5
Dr. Hernandez and his team are awesome
July 18, 2026
5
They kept it light but very professional.
July 17, 2026
5
No problem with anything this visit was great
July 6, 2026
5
Dr Hernandez is friendly and thorough
July 4, 2026
5
Courteous and thorough
July 3, 2026
5
I've been a patient of Dr Hernandez for several years. He takes the time to listen to me and answer questions. I feel very comfortable with Dr Hernandez and any advice or guidance he gives provides.
June 21, 2026
5
Great service!!
June 21, 2026
5
The staff is always very kind.
June 21, 2026
5
I felt Dr Hernandez listened attentively to my concerns and developed a plan to determine the cause of symptoms. I love the approach of ruling out what it is NOT. My daughter is familiar with this group and recommended them to me.
June 20, 2026
5
I am very much pleased. ??
May 17, 2026
5
I love dr. Hernandez and his staff. He is like family. Been treating my family for 20 yrs now. He is a great dr. I would trust him with my life. I even referred my daughter to him.
May 16, 2026
5
Doctor Hernandez and his Staff are the best. Very caring and professional!!! Always the best! Thank you
May 16, 2026
5
Very knowledgeable and communicative
May 16, 2026
5
My experience was great. Dr. Hernandez gave us all the information we needed and we'll be back soon. Thank you so much.
May 19, 2026
5
Very thorough and personable.
May 17, 2026
5
I always enjoy my visits to Dr. Hernandez's office.
May 8, 2026
5
Really liked Dr. Hernandez and I did not have to wait at all for my appt.
May 6, 2026
5
Dr. Hernandez and his staff were just so helpful to me. I really appreciate the care that he gave me and I'm just really proud that he is my doctor and I trust him implicitly. Thank you so much.
May 6, 2026
5
Dr Hernandez and staff are awesome!
May 4, 2026
5
Dr. Hernandez and staff are the best.
April 16, 2026
5
Great care! Good front counter staff
April 11, 2026
5
Dr Hernandez has been my Cardiologist for many years! I trust him with my care.
April 11, 2026
5
Everything was great ,staff awesome
August 20, 2026
5
As always they care about you. Great staff of nurses
August 14, 2026
5
Everyone was very kind, from the gentleman who greeted us at the entrance, helping us start the day with his warm welcome, guiding us to the office, and bidding us farewell very kindly... The registration staff facilitated the entire process, and the doctor was very approachable and professional.
August 9, 2026
5
The staff is always very welcoming at check in and rooming. Dr. Hernandez listens to me and I don't feel rushed.
August 12, 2026
5
My doctor's the best doctor in the whole world. That's all.
August 9, 2026
5
Very professional
August 7, 2026
5
Dr. Hernandez listens to my concerns and questions. He answers questions, offers advice and schedules tests to investigate further. I have complete confidence in him.
July 23, 2026
5
It was excellent
July 19, 2026
5
Dr. Hernandez and his team are awesome
July 18, 2026
5
They kept it light but very professional.
July 17, 2026
5
No problem with anything this visit was great
July 6, 2026
5
Dr Hernandez is friendly and thorough
July 4, 2026
5
Courteous and thorough
July 3, 2026
5
I've been a patient of Dr Hernandez for several years. He takes the time to listen to me and answer questions. I feel very comfortable with Dr Hernandez and any advice or guidance he gives provides.
June 21, 2026
5
Great service!!
June 21, 2026
5
The staff is always very kind.
June 21, 2026
5
I felt Dr Hernandez listened attentively to my concerns and developed a plan to determine the cause of symptoms. I love the approach of ruling out what it is NOT. My daughter is familiar with this group and recommended them to me.
June 20, 2026
5
I am very much pleased. ??
May 17, 2026
5
I love dr. Hernandez and his staff. He is like family. Been treating my family for 20 yrs now. He is a great dr. I would trust him with my life. I even referred my daughter to him.
May 16, 2026
5
Doctor Hernandez and his Staff are the best. Very caring and professional!!! Always the best! Thank you
May 16, 2026
5
Very knowledgeable and communicative
May 16, 2026
5
My experience was great. Dr. Hernandez gave us all the information we needed and we'll be back soon. Thank you so much.
May 19, 2026
5
Very thorough and personable.
May 17, 2026
5
I always enjoy my visits to Dr. Hernandez's office.
May 8, 2026
5
Really liked Dr. Hernandez and I did not have to wait at all for my appt.
May 6, 2026
5
Dr. Hernandez and his staff were just so helpful to me. I really appreciate the care that he gave me and I'm just really proud that he is my doctor and I trust him implicitly. Thank you so much.
May 6, 2026
5
Dr Hernandez and staff are awesome!
May 4, 2026
5
Dr. Hernandez and staff are the best.
April 16, 2026
5
Great care! Good front counter staff
April 11, 2026
5
Dr Hernandez has been my Cardiologist for many years! I trust him with my care.
April 11, 2026
5
Everything was great ,staff awesome
August 20, 2026
5
As always they care about you. Great staff of nurses
August 14, 2026
5
Everyone was very kind, from the gentleman who greeted us at the entrance, helping us start the day with his warm welcome, guiding us to the office, and bidding us farewell very kindly... The registration staff facilitated the entire process, and the doctor was very approachable and professional.
August 9, 2026
5
The staff is always very welcoming at check in and rooming. Dr. Hernandez listens to me and I don't feel rushed.
August 12, 2026
5
My doctor's the best doctor in the whole world. That's all.
August 9, 2026
5
Very professional
August 7, 2026
5
Dr. Hernandez listens to my concerns and questions. He answers questions, offers advice and schedules tests to investigate further. I have complete confidence in him.
July 23, 2026
5
It was excellent
July 19, 2026
5
Dr. Hernandez and his team are awesome
July 18, 2026
5
They kept it light but very professional.
July 17, 2026
5
No problem with anything this visit was great
July 6, 2026
5
Dr Hernandez is friendly and thorough
July 4, 2026
5
Courteous and thorough
July 3, 2026
5
I've been a patient of Dr Hernandez for several years. He takes the time to listen to me and answer questions. I feel very comfortable with Dr Hernandez and any advice or guidance he gives provides.
June 21, 2026
5
Great service!!
June 21, 2026
5
The staff is always very kind.
June 21, 2026
5
I felt Dr Hernandez listened attentively to my concerns and developed a plan to determine the cause of symptoms. I love the approach of ruling out what it is NOT. My daughter is familiar with this group and recommended them to me.
June 20, 2026
5
I am very much pleased. ??
May 17, 2026
5
I love dr. Hernandez and his staff. He is like family. Been treating my family for 20 yrs now. He is a great dr. I would trust him with my life. I even referred my daughter to him.
May 16, 2026
5
Doctor Hernandez and his Staff are the best. Very caring and professional!!! Always the best! Thank you
May 16, 2026
5
Very knowledgeable and communicative
May 16, 2026
5
My experience was great. Dr. Hernandez gave us all the information we needed and we'll be back soon. Thank you so much.
May 19, 2026
5
Very thorough and personable.
May 17, 2026
5
I always enjoy my visits to Dr. Hernandez's office.
May 8, 2026
5
Really liked Dr. Hernandez and I did not have to wait at all for my appt.
May 6, 2026
5
Dr. Hernandez and his staff were just so helpful to me. I really appreciate the care that he gave me and I'm just really proud that he is my doctor and I trust him implicitly. Thank you so much.
May 6, 2026
5
Dr Hernandez and staff are awesome!
May 4, 2026
5
Dr. Hernandez and staff are the best.
April 16, 2026
5
Great care! Good front counter staff
April 11, 2026
5
Dr Hernandez has been my Cardiologist for many years! I trust him with my care.
April 11, 2026
5
Everything was great ,staff awesome
August 20, 2026
5
As always they care about you. Great staff of nurses
August 14, 2026
5
The staff is always very welcoming at check in and rooming. Dr. Hernandez listens to me and I don't feel rushed.
August 12, 2026
5
My doctor's the best doctor in the whole world. That's all.
August 9, 2026
5
Everyone was very kind, from the gentleman who greeted us at the entrance, helping us start the day with his warm welcome, guiding us to the office, and bidding us farewell very kindly... The registration staff facilitated the entire process, and the doctor was very approachable and professional.
August 9, 2026
5
Very professional
August 7, 2026
5
Dr. Hernandez listens to my concerns and questions. He answers questions, offers advice and schedules tests to investigate further. I have complete confidence in him.
July 23, 2026
5
It was excellent
July 19, 2026
5
Dr. Hernandez and his team are awesome
July 18, 2026
5
They kept it light but very professional.
July 17, 2026
5
No problem with anything this visit was great
July 6, 2026
5
Dr Hernandez is friendly and thorough
July 4, 2026
5
Courteous and thorough
July 3, 2026
5
The staff is always very kind.
June 21, 2026
5
I've been a patient of Dr Hernandez for several years. He takes the time to listen to me and answer questions. I feel very comfortable with Dr Hernandez and any advice or guidance he gives provides.
June 21, 2026
5
Great service!!
June 21, 2026
5
I felt Dr Hernandez listened attentively to my concerns and developed a plan to determine the cause of symptoms. I love the approach of ruling out what it is NOT. My daughter is familiar with this group and recommended them to me.
June 20, 2026
5
My experience was great. Dr. Hernandez gave us all the information we needed and we'll be back soon. Thank you so much.
May 19, 2026
5
I am very much pleased. ??
May 17, 2026
5
Very thorough and personable.
May 17, 2026
5
I love dr. Hernandez and his staff. He is like family. Been treating my family for 20 yrs now. He is a great dr. I would trust him with my life. I even referred my daughter to him.
May 16, 2026
5
Doctor Hernandez and his Staff are the best. Very caring and professional!!! Always the best! Thank you
May 16, 2026
5
Very knowledgeable and communicative
May 16, 2026
5
I always enjoy my visits to Dr. Hernandez's office.
May 8, 2026
5
Dr. Hernandez and his staff were just so helpful to me. I really appreciate the care that he gave me and I'm just really proud that he is my doctor and I trust him implicitly. Thank you so much.
May 6, 2026
5
Really liked Dr. Hernandez and I did not have to wait at all for my appt.
May 6, 2026
5
Dr Hernandez and staff are awesome!
May 4, 2026
5
Dr. Hernandez and staff are the best.
April 16, 2026
5
Great care! Good front counter staff
April 11, 2026
5
Dr Hernandez has been my Cardiologist for many years! I trust him with my care.
April 11, 2026
5
Dr Hernandez has been my Cardiologist for many years! I trust him with my care.
April 11, 2026
5
Great care! Good front counter staff
April 11, 2026
5
Dr. Hernandez and staff are the best.
April 16, 2026
5
Dr Hernandez and staff are awesome!
May 4, 2026
5
Really liked Dr. Hernandez and I did not have to wait at all for my appt.
May 6, 2026
5
Dr. Hernandez and his staff were just so helpful to me. I really appreciate the care that he gave me and I'm just really proud that he is my doctor and I trust him implicitly. Thank you so much.
May 6, 2026
5
I always enjoy my visits to Dr. Hernandez's office.
May 8, 2026
5
Very knowledgeable and communicative
May 16, 2026
5
Doctor Hernandez and his Staff are the best. Very caring and professional!!! Always the best! Thank you
May 16, 2026
5
I love dr. Hernandez and his staff. He is like family. Been treating my family for 20 yrs now. He is a great dr. I would trust him with my life. I even referred my daughter to him.
May 16, 2026
5
Very thorough and personable.
May 17, 2026
5
I am very much pleased. ??
May 17, 2026
5
My experience was great. Dr. Hernandez gave us all the information we needed and we'll be back soon. Thank you so much.
May 19, 2026
5
I felt Dr Hernandez listened attentively to my concerns and developed a plan to determine the cause of symptoms. I love the approach of ruling out what it is NOT. My daughter is familiar with this group and recommended them to me.
June 20, 2026
5
Great service!!
June 21, 2026
5
I've been a patient of Dr Hernandez for several years. He takes the time to listen to me and answer questions. I feel very comfortable with Dr Hernandez and any advice or guidance he gives provides.
June 21, 2026
5
The staff is always very kind.
June 21, 2026
5
Courteous and thorough
July 3, 2026
5
Dr Hernandez is friendly and thorough
July 4, 2026
5
No problem with anything this visit was great
July 6, 2026
5
They kept it light but very professional.
July 17, 2026
5
Dr. Hernandez and his team are awesome
July 18, 2026
5
It was excellent
July 19, 2026
5
Dr. Hernandez listens to my concerns and questions. He answers questions, offers advice and schedules tests to investigate further. I have complete confidence in him.
July 23, 2026
5
Very professional
August 7, 2026
5
Everyone was very kind, from the gentleman who greeted us at the entrance, helping us start the day with his warm welcome, guiding us to the office, and bidding us farewell very kindly... The registration staff facilitated the entire process, and the doctor was very approachable and professional.
August 9, 2026
5
My doctor's the best doctor in the whole world. That's all.
August 9, 2026
5
The staff is always very welcoming at check in and rooming. Dr. Hernandez listens to me and I don't feel rushed.
August 12, 2026
5
As always they care about you. Great staff of nurses
August 14, 2026
5
Everything was great ,staff awesome
August 20, 2026
Ernesto Hernandez, MD
Cardiovascular Disease Specialist with Wellstar since 2010
