About Kamesh Sivagnanam
Dr. Siv is a board-certified cardiologist who specializes in cardiovascular diseases, including coronary artery disease, heart arrhythmias, heart valve disease, and congestive heart failure. As a general cardiologist, he believes that everyone is unique and deserves individualized, comprehensive care. Dr. Siv cares for patients with high blood pressure, high cholesterol, recurrent chest pains, shortness of breath, palpitations, dizziness, leg pain/cramps, and a wide range of interrelated symptoms and underlying conditions. He is committed to raising community awareness of heart problems by educating patients about risk factors, while empowering them to make simple lifestyle changes. Outside the office, Dr. Siv enjoys reading, writing, hiking, and spending time in nature.
Specialties
Invasive-Interventional Cardiology
Language(s)
English
Education
East Tennessee State University - Fellowship Program
Sri Ramachandra Medical College and Research Inst
East Tennessee State University Internal Med GME
Sri Ramachandra Medical College and Research Inst
East Tennessee State University Internal Med GME
Hospitals & Affiliations
Valley Baptist - Harlingen
The Heart & Vascular Clinic Valley Baptist Physician Network
Address
2121 Pease Street
406
Harlingen, TX 78550
Phone
The Heart & Vascular Clinic Valley Baptist Physician Network
Address
844 Central Boulevard
380
Brownsville, TX 78520
Phone
05/27/2026
Very friendly and attentive
05/27/2026
Very good information
05/27/2026
Very friendly staff
05/27/2026
Highly recommended
05/27/2026
Very good
05/15/2026
Satisfied with the service by both staff and doctor
05/14/2026
Good Dr
05/14/2026
Overall good
05/08/2026
Very loving and attentive staff
05/06/2026
Good
04/25/2026
Good
04/25/2026
Very patient doctor
04/25/2026
Everything went fine.
04/25/2026
Went fine
04/23/2026
Great staff
04/23/2026
Great dr. I can't say enough but my visit with him went very well. Great Dr.
04/23/2026
Amazing
04/23/2026
Your staff Is very professional and answered my concerns quickly and efficient.
04/23/2026
She advised me all that she was doing. Very nice young lady.
04/23/2026
I have no complaints. My visit went smoothly.
04/20/2026
There were no delays even had guidance from a female employee driving a cart in the parking lot to a male employee helping us find our way inside the building
04/18/2026
Nice environment
04/18/2026
Nice nurses
04/18/2026
Good doctor
04/18/2026
Awesome patient care
04/18/2026
Good
04/17/2026
Good
04/17/2026
Everything was on time and very good
04/16/2026
Okay
04/02/2026
Good
04/02/2026
Would highly recommend Dr. Siv and wish he was in my home state of Missouri
03/30/2026
Dr Siv is caring and understanding. I have great confidence in him.
03/30/2026
Good experience. Friendly staff.
03/25/2026
Very good experience with Dr. Siv
03/25/2026
Always a good visit with Dr. Siv
03/25/2026
Very good experience with staff and Dr. Siv
03/25/2026
Overall good wait time compared to some doctors' offices.
03/25/2026
Outstanding service.
03/25/2026
Excellent service!
03/25/2026
Very good service!
03/25/2026
Great team service!
03/25/2026
Nurse is fantastic.
03/25/2026
Overall good experience
03/25/2026
Thank you
03/25/2026
Great doctor. I really like him. Sometimes I feel like I am a bother to the front of house staff.
03/25/2026
Great service!
03/25/2026
Outstanding!
03/25/2026
My visit was very good, both the Dr and the staff were excellent.
03/20/2026
She was nice!
03/20/2026
Girls are very curtious and Dr Sivsbis the best. He explains everything in detail
03/18/2026
Good
03/14/2026
They are very helpful and and answer what ever concerns I have.
03/14/2026
He answers all my concerns. He is friendly and professional.
03/14/2026
Have no complaints in fact would highly recommen anyone to seek their services
03/14/2026
Great job by everyone
03/14/2026
Number one in my book
03/14/2026
Very good and curious treatment by staff
03/14/2026
They are helpful in answering my questions.
03/14/2026
Most of my visits have been good.
03/14/2026
I have always had good experiences.
03/14/2026
The staff is friendly and helpful.
03/14/2026
Made me feel at ease and comfortable
03/02/2026
Dr. Siv is an outstanding physician - knowledgeable and caring, giving dedicated thought to my medical problem and involving me jn the decision making. I would NEVER tolerate the experience of the clinic, except Dr. Siv is so amazing.
03/01/2026
Outstanding service and attention
02/22/2026
Excellent doctor. Like him alot.
02/18/2026
Everyone was very professional
02/18/2026
Excellent medical experience
02/18/2026
Excellent experience. Dr. Siv It's very thorough and took care of all of my needs .
02/18/2026
No issues
02/16/2026
Great provider makes you feel relaxed and not afraid to ask questions would recommend to other patients
02/16/2026
All good treated like a patient should be treated with respect and compassion
02/16/2026
My experience has been really good staff is great and of course Dr. Is really great very caring and compassionate and best part not rushing when in room time to listen. This office has been best place to go look forward to my appointment. Love the staff
02/16/2026
Nurse assistants how been really good very polite,smile and answer questions without rolling eyes like most sometimes do do very good job
02/16/2026
Like I said before staff is great
02/16/2026
Time at office is really good don't spend much time
02/11/2026
Awesome doctoe
02/11/2026
Great experience, very kind staff. Thank you for great experience.
02/09/2026
The office was much more efficient than most I've seen in Harlingen. We were done in under an hour, which I appreciate a lot because I have to take time off to take my Dad and he has a lot of appts
02/09/2026
I liked the doctor and would definitely recommend him. He seemed knowledgeable and explained things well but also asked questions and listened- didnt presume to know all about the patient
02/09/2026
Dr. Sivagnanam took time to listen so he could get an accurate history. We appreciated that a lot.
01/26/2026
Good experience
01/26/2026
Experience was very good
01/25/2026
Dr Siv is the best provider I've ever had he is very tentative and patient so glad I was able to have him as a provider
01/05/2026
Staff was very careful and thorough about washing their hands Before tending to patients
01/05/2026
Excellent. Dr. Siv always listenes and you are able to ask questions
01/05/2026
Excellent and professional environment didn't have to wait long on anything. Nurses and assistance were very courteous towards myself and others in the office. Dr. Kamesh it's a great cardiologist and very thorough definitely go back for any cardio issues. I recommend my friends and others to Dr kamesh . I new that I was at the right place when sitting in the waiting room for a short time and everybody that was sitting there was speaking very highly of him at that point I new I was at the right place
01/05/2026
Very good excellent staff
01/05/2026
They had a great attitude towards people and myself
01/05/2026
Excellent service definitely will recommend to anybody
01/05/2026
Good. Nurses and staff are always ready to help
01/05/2026
No issues on waiting at all it was very quick
12/29/2025
DR SIV IS EXCELLENT!!!
12/07/2025
Everything was handled in the best manner. Very satisfied.
12/05/2025
Able to let me input my care options
12/05/2025
Good experience
12/05/2025
Quick and easy
12/05/2025
No long wait
12/04/2025
Very professional
12/03/2025
It was very organized
12/03/2025
It was very organized and prompt
12/03/2025
They were focused on my care
12/03/2025
Everyone was knowledgeable and friendly
12/03/2025
She was very friendly and efficient
12/03/2025
I had no concerns
11/29/2025
Excellent
11/29/2025
Excellent care from Dr Siv one hundred percent recommended.
11/29/2025
Everyone very friendly
11/26/2025
Very great courteous
11/26/2025
Very great
11/26/2025
Awesome
11/26/2025
Great experience
11/26/2025
Very good doctor
11/17/2025
Dr was wonderful, receptionists being bothered to check one in, ...
11/15/2025
Great staff
11/15/2025
Staff is amazing
11/15/2025
Awesome and amazing
11/03/2025
Caring Doctor and staff. Answered questions
11/02/2025
Efficient office process; caring and knowledgeable physician.
10/30/2025
Dr Siv is a great doctor. He explains everything, shows concern and is patient.
10/22/2025
The doctor is great very nice man and caring. The staff was nice also especially the receptionist. Worth the wait
10/22/2025
He has a wonderful side manner. He saw me the hospital and was very attentive. Explained everything thoroughly and gave his recommendation but letting me decide. He a wonderful doctor and you should get more like him
10/22/2025
Everything was handled good
10/16/2025
The office were talking about their personal lives and we could hear everything
10/13/2025
All was good
10/11/2025
No problem, very professional and .ost definitely would recommend highly.
10/11/2025
Great all the way around
10/11/2025
Very professional.
10/11/2025
VEry professional . .ost definitely I would recommend highly.
10/10/2025
Love Dr Siv. Very caring and understanding and knowledgeable.
10/10/2025
None. Very professional
10/10/2025
No delays.
09/17/2025
Real satisfied !
09/17/2025
They did a great job seeing me.
09/07/2025
Dr. "Sic" is an amazing doctor. He thoroughly answers all questions in a manner in which is understandable. He takes the time to educate, inform, and interventions.
09/06/2025
Great staff
09/06/2025
Great customer service
09/04/2025
Great persistent staff
09/04/2025
Courteous and attentive staff
09/04/2025
Professionalism throughout my visit and very informative
09/04/2025
Felt I was cared for in professional manner
09/04/2025
Great job
08/25/2025
Very understanding & caring physician.
08/24/2025
I had a good experience with everyone
08/20/2025
It was a good visit
08/20/2025
Well done
08/20/2025
Fine expierence
08/19/2025
The first receptionist is ALWAYS nice and friendly
08/18/2025
The office works cohesively and a well oiled machine
08/18/2025
Very professional and informative
08/18/2025
Very efficient
08/09/2025
One of the best offices, staff, etc., that I have been to in years.
08/09/2025
Listened far better than anyone in 40 some years.
07/30/2025
Good
07/19/2025
Entire staff; front and back were all very friendly.
07/19/2025
Good experience
06/28/2025
Friendly and helpful
06/27/2025
Great professional service
06/27/2025
Very professional staff
06/27/2025
Very much at ease with my cardiologist
06/27/2025
Staff was great
06/27/2025
All went great
06/27/2025
No problems, have no problem recommending my cardiologist to prospective patients in the future
06/12/2025
Very friendly staff
05/18/2025
All members of Harlingen office staff communicated procedures and directions well, and addressed questions right away.
05/17/2025
Everything is very good
05/16/2025
None bad
05/14/2025
They were alright
05/09/2025
They are very attentive
05/03/2025
Very good & professional staff.
05/03/2025
All very well.
04/26/2025
Dr. Siv is a blessing. Great man, patient, understanding, and thorough. I had his undivided attention. His staff was great. The followed up and followed through on questions that had after the appointment. Great team.
04/26/2025
Staff and Dr. Siv are amazing. I am grateful for their expert, compassionate care. Staff is incredibly efficient and mindful of the value of my time. I would recommend them to anyone!
04/26/2025
Dr. Siv spoke very clearly and explained the current situation and medical treatment going forward. He answered my wife's questions and took no offense to our thought process.
04/25/2025
As expected.
04/25/2025
Dr Siv was very relaxed and non-hurried. Took time to explain procedure, outcome and expressed any concerns he may have going forward and suggestions of preventive measures. Very pleased with thoroughness, thoughtfulness and calmness, helping me to be more at ease.
04/25/2025
She was nice!
04/25/2025
Did not have to wait very long. Did not track minutes. Once called to exam room, Dr was in very soon.
04/25/2025
Was a good experience, even though it was a Dr appointment!!
04/25/2025
Professional, attentive and efficient. Very pleasing/pleasant.
04/25/2025
Staff were professional, friendly and efficient. No complaints!!
04/20/2025
Always a good experience
04/17/2025
Excellent care and would highly recommend
04/17/2025
Dr was attentive to my needs and concerns
04/17/2025
Staff is very friendly and courteous. Didn't have to wait a long time before I was called in and dr came in quick and asked me questions and them he asked if I had questions on anything that he had explained and took the time ro listen to my concerns . Overall had a wonderful visit.
04/17/2025
Very nice lady
04/16/2025
Dr siv takes time to explain treatment options and is very empathetic
04/16/2025
My appointment will be scheduled before the doctor is even there
04/14/2025
Dr. Siv is a polite, Courteous, soft-spoken,very knowledgeable, and takes time to understand that you understood what he was saying or meant. An excellent doctor! I mean it!
04/14/2025
Truly, an excellent doctor.
04/08/2025
Great service every time
04/08/2025
Best doctor, takes time to listen to concerns
04/08/2025
Very attentive
04/08/2025
Prompt
04/08/2025
Excellent
04/08/2025
Best staff
04/01/2025
Very good...
03/28/2025
No problems
03/28/2025
Was very impressed with electronic sign in
03/28/2025
Would recommend with out a doubt
03/28/2025
Really impressed with Doctor
03/20/2025
Staff is friendly.
03/20/2025
Dr. Siv is very courteous & caring & makes me feel confident in his treatment.
03/12/2025
Over all was good.
03/11/2025
Very good attention from all the medical staff.
03/11/2025
Dr. Siv saw me at the hospital & I really enjoyed his visits - he is thorough, and clear. Thank you.
03/09/2025
Very good service.
03/08/2025
Tres bon service
03/07/2025
I saw him so briefly and this situation is familiar to me so based on those factors, I'm am perfectly satisfied with my care. I know several former patients that have had him for their care, and they all recommend him highly.
03/07/2025
She was efficient, nothing more.
03/06/2025
I will refer him to other people.
03/06/2025
Dr.was very thoughtful and very helpful to understand...
03/06/2025
The visit was normal and didn't have to wait too long.
03/06/2025
Everyone was real professional.
03/06/2025
They are real professional.
03/06/2025
Very understanding staff
03/06/2025
They are all courteous.
03/06/2025
Awesome care
03/06/2025
Good service
03/06/2025
Very friendly
03/06/2025
Good
03/05/2025
Very professional. Very efficient.
02/28/2025
So far good sevice
02/26/2025
Dr Siv takes the time to Listen!!! He is very caring and compassionate .
02/24/2025
Good
02/20/2025
Good
02/20/2025
Very good
02/20/2025
It was very good
02/13/2025
Very satisfied
02/13/2025
Very satisfactory
02/12/2025
Dr. Sivagnanam is an outstanding physician. He was very responsive to questions and concerns and involved me and my wife in exploring treatment options. He gave his professional opinion and considered our input regarding the way forward.
02/12/2025
Doctor took the time to answer all my questions and allayed my concerns.Staff were very responsive.
02/11/2025
Very good experience
02/05/2025
Everything was good
02/05/2025
Everything went good
02/05/2025
Staff were very helpful and nice attitude
01/31/2025
Dr. Siv is an amazing professional
01/23/2025
Great nurses
01/23/2025
Good
01/15/2025
I'm from St. Louis mo and the first time I had to go to the hospital here and they made me feel relax and confident that they were going to take care of me.
01/15/2025
I had a very nice experience and everyone was very friendly and answered any questions or problems I had.I was impressed .
01/15/2025
It was a very pleasant experience.of course it wasn't real busy. LOL! But stil the whole staff was very nice.
01/14/2025
Nurses, assistants and maintenance personnel were well aware and concerned about my personal privacy.
01/14/2025
Staff was courteous and explained what test or exams were being or gonna be conducted.
01/14/2025
Overall concern, customer service. Positive and proactive approach for treatment, test (xrays, MRI, blood pressure monitoring, glucose Monitoring and insulin to control sugar levels). Explanations as to test and test result, including findings and recommendations for continued medical options.
01/14/2025
Very cordial greeting and informative.
01/14/2025
Not much delay involved in the process.
01/06/2025
Extremely good doctor (Dr. Siv). Well mannered, knowledgeable, very courteous, and soft-spoken. I like him and trust whatever he tells me. I feel he has my best health in mind.
01/02/2025
Fair experience.
01/02/2025
Doctor was very attentive and knowledgeable.
12/31/2024
It was great
12/16/2024
Everyone was very nice
12/16/2024
I have not had any problems, my needs have been met every visit
12/12/2024
Everyone there was very nice, very professional.
11/13/2024
Great office staff, very friendly
11/07/2024
They were nice and professional.
11/07/2024
Everyone was nice and professional.
11/07/2024
Good first time experience.
11/07/2024
Very nice and professional.
11/07/2024
Good experience.
10/29/2024
For being at a Specialist office, very impressed with how quickly from checking in to checking out & how thoroughly the Physician listened to my concerns was very impressive & I actually spent more time w/ the Physician than I did waiting, which was probably a first. Very convenient & left feeling informed
10/29/2024
I was very comfortable with the Provider, especially while being worried about a new issue I'm dealing with. He reassured me & explained what kind of test he was ordering & why & gave me some different things to do on my own at home that could maybe help the issue. Felt very confident when I left.
10/29/2024
Everyone from the front desk to check in, to the Medical Assistant asking questions & taking vitals, to the Doctor & checking out, everyone was very nice, efficient & helpful.
10/29/2024
Nurse Assistant was very pleasant, asked any questions they needed to know & listened to any I might have had due to dealing with a new issue, they were very patient with me & answered any questions I had
10/29/2024
I would very much recommend this Provider to others needing to see a Cardiologist
10/09/2024
So far it's been great
10/09/2024
They serve very well
10/03/2024
Dr. Siv's office staff is very helpful.
10/03/2024
I do believe that Dr. Siv is looking out for my best interest and trying to figure out what is going on with my unique situation
09/26/2024
The best
09/26/2024
Best Dr
09/26/2024
Best Dr. Siv
09/26/2024
Best
09/21/2024
Dr takes his time explaining any questions we have and listens to our concerns. Very patient and compassionate
09/09/2024
Very good experience I wouldn't change a thing
09/09/2024
I didn't had any bad experience
09/02/2024
Good
08/04/2024
We already recommended Dr. Siv to our friends
07/30/2024
Nurses assist us to my dad need
07/30/2024
Very caring for my dad.
07/30/2024
My dad was very pleased.
07/30/2024
Good experience, very professional, Dr Siv very compassion and caring for my dad. Staff very professional and very nice. Thank you.
07/02/2024
Great
07/02/2024
He great
07/02/2024
Good
06/26/2024
Dr Siv is so nice and patient and explains his reasoning and plan
06/25/2024
Soft spoken, honest, courteous, very knowledegeable, liked him alot.
05/30/2024
Receptionist was very helpful and explained the process thoroughly
05/22/2024
Very nice!!!
05/09/2024
The doctor was calm and collective and he explained everything crystal clear.
05/09/2024
She explained the entire procedures and was do with professionalism.
05/09/2024
Everyone was very friendly
05/09/2024
Highly recommended.
05/09/2024
Great experience.
05/09/2024
Clean and professional atmosphere.
05/09/2024
Friendly staff and very respectful.
05/08/2024
Very nice staff , Dr Siv is a very good cardiologist will recommend
04/17/2024
Staff was very nice and helpful.
03/25/2024
Everyone was wonderful.
03/25/2024
Dr Siv and his staff are very professional and nice. He is extremely helpful and explains things in a way for the patient to understand.
03/24/2024
Physician was obviously competent in skill level and conversant. Incredible deficiency in support staff, accessibility, and overall communication when not in personal contact. Although I'm back in Minnesota I still want my lab results.
03/15/2024
Good experience
03/15/2024
I was very impressed and happy with all the explanations he gave me. He also answered all my concerns
03/15/2024
Friendly young lady
03/15/2024
Very happy with the services I received.
03/04/2024
Very good
03/04/2024
Awesome
03/04/2024
Very courteous
03/04/2024
Great staff
03/04/2024
Good
02/28/2024
I am so happy that I chose Dr. Siv, I have great faith in his abilities a a cardiac physician
02/28/2024
An excellent office and support staff
02/26/2024
The staff is excellent.
02/26/2024
This office does a phenomenal job of getting me in and out. They staff is friendly and answer any questions I have.
02/08/2024
Doctor was thorough in his evaluation and took action immediately on my vision issue scheduling an MRI.
02/08/2024
No improvement necessary
02/08/2024
Good
02/08/2024
Very impressed with the doctor and the efficiency of the visit.
02/08/2024
If someone needed a cardiologist, I would recommend the doctor.
01/11/2024
Good
01/11/2024
Very good
12/13/2023
Very glad that you accepted my insurance. Your office workers were helpful and kind.
12/13/2023
Great MA assistant. Showed a lot of concern for my medical issues.
12/13/2023
All good
12/13/2023
Great doctor. He had great background and knowledge of my heart condition, and I appreciated the time he took to look at my case. I had brought a CD from my previous Cardiologist and many physical papers which described the procedures that had taken place. He took the time to look at them and it gave me confidence In him and with your facility.
The Heart & Vascular Clinic Valley Baptist Physician Network
Address
2121 Pease Street, 406, Harlingen, TX 78550