Welcome to Cardiology Consultants of Houston, PLLC! 

We are pleased to announce that Dr. John O. Tyler, III has joined Cardiology Consultants of Houston, PLLC!
Call our office today to schedule an appointment!
About Dr. Tyler | Contact Us

Cardiology Consultants of Houston, PLLC is a group practice that specializes in the management of cardiovascular diseases and was established in 1981.  Our physicians are part of the  The Texas Heart Institute, and our practice is centered at CHI Baylor St. Luke's Medical Center in the Texas Medical Center.

Our cardiologists are all Board Certified in Cardiovascular Diseases and Internal Medicine and are available for office and hospital consultations.  Areas of interest and expertise include management of heart and vascular diseases including coronary disease, hypertension, heart failure, and heart transplant.

Our physicians perform some of the most complex coronary and peripheral vascular interventions, including balloon angioplasties, atherectomies and placement of stents. Management of cardiac arrhythmias, placement of pacemakers, and monitoring devices are services offered by our practice.

The physicians serve as clinical investigators in the development of new forms of therapy for a variety of cardiovascular diseases. 

We never forget that our primary purpose is to deliver the best patient experience that we can offer, and we greatly appreciate our patients who have come to us and made us their home for cardiovascular services.  

Practice Announcements


Dr. Massin has announced his retirement from the active practice of cardiology, effective August 14, 2015. He would like to thank each of you for making his 40+ years of practice both exciting and rewarding and wishes the very best for you and your health. CCOH will continue its 30+ year tradition as an active and prestigious practice, and Drs. Mark Schnee and Jorge Garcia-Gregory will be pleased to continue to serve you with excellent cardiac care. Thank you for your support over the years. We hope to see you soon!

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Patient Portal

Patient Portal

Our Patient Portal provides the quickest access to our practice and is conveniently and securely available 24/7. Through our patient portal, you can update/change your information, view your clinical summaries as well as lab and imaging results, request prescription refills and appointments and send messages directly to our staff and physicians! Portal messages are monitored during the entire work day and are quickly responded to, bypassing the need for Voicemail messages and telephone tag!

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