Dr. Hatim A. Mahmood, MD | O Fallon, IL | Cardiovascular Disease

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Dr. Hatim Mahmood is a cardiovascular disease specialist with additional expertise in interventional cardiology. He earned his medical degree from Southern Illinois University School of Medicine and completed his residency at Baylor College of Medicine. With 31 years of experience in cardiology, Dr. Mahmood brings extensive knowledge to treating complex heart conditions. He speaks English with his patients.

Dr. Mahmood practices at BJC Medical Group Cardiology locations in O Fallon and Shiloh, Illinois, as well as Memorial Hospital Belleville in Belleville, Illinois. He specializes in managing high blood pressure and elevated cholesterol levels in both adults and young patients. His diagnostic expertise includes performing electrocardiograms and exercise stress tests to evaluate heart function. Patients rate Dr. Mahmood 4.6 out of 5 stars for his cardiovascular care.

AI-generated from data on this provider profile.

4.6

15 Ratings
31 years of experience
33 insurance plans accepted
speaks English
Baylor College Of Medicine
5 written reviews
2 specialties
14 areas of expertise
2 board certifications
3 office locations
Male

15 ratings & reviews

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Showing 1 to 5 of 5 reviews

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Dr. Mahmood has been my cardiologist for many years. He has always followed my cardiac history, assessment, and care in a knowledgeable, thoughtful, and professional manner. I have recommended him to friends. Retired RN, here, I look forward to continuing care per Dr Mahmood for excellent cardiac care.

November 14th, 2025

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My husband and I both go to him. Such a compassionet Doctor. Explains everything you ask. He has taken good care of us ... my husband has improved greatly. He kicked my butt last time but because he was so concerned and worried about me and my lab work. He makes you want to do good to make his day. ??. Really love this doctor. Bev and Stan Lewis

February 5th, 2019

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Ok.. So what doctors office do you not have to wait in a little past your appointment. Generally very busy the wait times can be a bit long. But and this is a big but... it is well worth the wait. Dr. Mahmood's staff are very caring, knowledgeable and organised. Dr. Mahmood, in my opinion, and I have unfortunately had to visit a few cardiologists, if by far the best regarding the care and attention and advise he gives you. He does not overdue the tests, he listens to what you have to say and is always there for you in an emergency. I have been with him for nearly 10 years now and I am still alive...!! Thanks to him.

September 1st, 2013

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I would be glad to tell anyone that Dr. Mahmood saved my life. When other DRs told me nothing was wrong with my heart. He listened to me and did further testing. I had a 2 vessel bypass. I had a widow maker. I was told by the heart surgeon that I was lucky to be alive. That if I had had a heart attack that I would have died instantly. I never mined waiting to see Dr Mahmood because once you saw him, he had as much time as you needed. I just loved him. I moved so I had to find a new heart MD.

February 15th, 2012

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Hatim is a consumate professional with a heart...which is funny since he is a heart doctor. His appointments don't always run on time, but that is because he spends a lot of time with his patients, answering questions and taking the time for a correct diagnosis. I can't say enough about this guy...other than he is the best I have ever run into. Highly recommend!

October 5th, 2009

BJC Medical Group Cardiology

1404 Cross St Ste 2940O Fallon, IL 62269

Memorial Hospital Belleville

4500 Memorial DrBelleville, IL 62226

Tel: (618) 233-7750

BJC Medical Group Cardiology

1404 Cross St Ste 2940Shiloh, IL 62269


Dr. Hatim Ahmad Mahmood, MD	Dr. Kunal Gurav, MD	Dr. Julio Edgardo Perez, MD	Dr. Steven Jay Lavine, MD
Cardiovascular Disease	Cardiovascular Disease	Cardiovascular Disease	Cardiovascular Disease
	Accepts New Patients
4.6 (15 Ratings)	5 (4 Ratings)	0 (0 Ratings)	3 (2 Ratings)
31 Years of Experience	18 Years of Experience	53 Years of Experience	50 Years of Experience
No Virtual Visit Option	Virtual Visit Available	No Virtual Visit Option	No Virtual Visit Option
Speaks English	Speaks English, Hindi, Marathi
O Fallon , IL	Saint Louis , MO	Saint Louis , MO	Saint Louis , MO
Med School: Southern Illinois University School Of Medicine	Med School: SETH GS MEDICAL COLLEGE	Med School: University Of Puerto Rico School Of Medicine	Med School: Lewis Katz School Of Medicine At Temple University
Current Profile	View Profile	View Profile	View Profile

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Acute Coronary Syndrome (ACS)
Arrhythmia
Atherosclerosis
Blood Clot
Heart Attack
Heart Block
Heart Diseases
Heart Failure
High Blood Pressure (Hypertension)
High Cholesterol
Hypertension
Interventional Cardiology
Stroke
Unstable Angina

MEDICAL LICENSE

Medical Doctor, Illinois, 2026, Active

EDUCATION & TRAINING

Residency

Baylor College Of Medicine

Medical School

Southern Illinois University School Of MedicineGraduated in 1995

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Is Dr. Hatim Mahmood accepting new patients?: Dr. Hatim Mahmood has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.
What languages does Dr. Hatim Mahmood speak?: Dr. Hatim Mahmood speaks English.
Does Dr. Hatim Mahmood accept my insurance?: You can see the insurance plans that Dr. Hatim Mahmood accepts on their Vitals profile.
Where is Dr. Hatim Mahmood's office located?: Dr. Hatim Mahmood's office is located at 1404 Cross St Ste 2940, O Fallon, IL, 62269.
How can I make an appointment with Dr. Hatim Mahmood?: You can find contact information for Dr. Hatim Mahmood here on Vitals.

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