# Houston Heart Rhythm > Houston Heart Rhythm is the cardiac electrophysiology practice of Ilyas K. Colombowala, MD, FACC, FHRS, a board-certified cardiac electrophysiologist (heart rhythm specialist) in Houston, Texas. The practice diagnoses and treats heart rhythm disorders, with consultations and follow-up at a Northwest Houston clinic and procedures performed at affiliated Houston hospitals and a new Texas Medical Center surgery center. Dr. Colombowala is Dartmouth and Baylor trained, completed Clinical Cardiac Electrophysiology at the Texas Heart Institute (Chief Fellow), and is a Clinical Assistant Professor at Baylor College of Medicine. He is a Castle Connolly Top Doctor (2019 to 2026) and speaks English, Spanish, and Gujarati. Common reasons patients are referred include atrial fibrillation, supraventricular tachycardia, unexplained fainting, and questions about pacemakers or defibrillators. Key facts: - Phone: (832) 478-5067 - Clinic (consultations and follow-up): 13325 Hargrave Rd, Suite 280, Houston, TX 77070, in the FM-1960 corridor of Northwest Houston - Procedure center (opening September 2026): Advanced Cardiovascular Institute, 6624 Fannin St, Houston, TX 77030, in the Texas Medical Center - Hours: Monday to Friday, 8:30 AM to 5:00 PM - New patients with urgent concerns are usually seen within one week - Patient education library: https://learn.colombowala.com/ - Dr. Colombowala speaks English, Spanish, and Gujarati; professional medical interpreters are available for all other languages. Landing pages are available in Spanish (/es/), Vietnamese (/vi/), Mandarin (/zh/), Arabic (/ar/), French (/fr/), German (/de/), Italian (/it/), Portuguese (/pt/), Urdu (/ur/), Hindi (/hi/), and Gujarati (/gu/). ## Procedures - [AFib ablation](https://www.colombowala.com/afib-ablation-houston/): Catheter ablation for atrial fibrillation using pulsed-field, radiofrequency, or cryoballoon energy. Same-day, catheter-based procedure to isolate the pulmonary veins. - [WATCHMAN](https://www.colombowala.com/watchman-houston/): Left atrial appendage closure, a one-time implant that lets many AFib patients come off long-term blood thinners for stroke prevention. - [Pacemaker implantation](https://www.colombowala.com/pacemaker-houston/): Traditional transvenous, leadless (Medtronic Micra and Abbott Aveir), and cardiac resynchronization (CRT-P) pacemakers. - [ICD and defibrillator implantation](https://www.colombowala.com/icd-defibrillator-houston/): Implantable defibrillators in three modalities: transvenous, subcutaneous (S-ICD), and extravascular (EV-ICD). - [Loop recorder](https://www.colombowala.com/loop-recorder-houston/): Implantable cardiac monitor for long-term rhythm capture in unexplained syncope, palpitations, and cryptogenic stroke. - [Syncope evaluation](https://www.colombowala.com/syncope-specialist-houston/): Structured workup of fainting and near-fainting, including tilt-table testing, monitoring, and electrophysiology study. - [Advanced Cardiovascular Institute (TMC procedure center)](https://www.colombowala.com/procedure-center/): New ambulatory surgery center at 6624 Fannin in the Texas Medical Center, opening September 2026. ## Finding a heart rhythm doctor - [AFib doctor in Houston](https://www.colombowala.com/afib-doctor-houston/): When to see an electrophysiologist for atrial fibrillation, and how AFib is diagnosed and treated. - [AFib second opinion in Houston](https://www.colombowala.com/afib-second-opinion/): When a second opinion on atrial fibrillation treatment makes sense, what an EP review includes, and what records to bring. - [Cardiac electrophysiologist in Houston](https://www.colombowala.com/cardiac-electrophysiologist-houston/): What a cardiac electrophysiologist does and when to be referred to one. - [Heart rhythm doctor in Houston](https://www.colombowala.com/heart-rhythm-doctor-houston/): Overview of arrhythmia care and the conditions an EP treats. - [Best electrophysiologist in Houston](https://www.colombowala.com/best-electrophysiologist-houston/): How to choose a cardiac electrophysiologist, with Dr. Colombowala's credentials and experience. ## Houston areas served - [Bellaire](https://www.colombowala.com/houston-bellaire/) - [Cypress](https://www.colombowala.com/houston-cypress/) - [Energy Corridor](https://www.colombowala.com/houston-energy-corridor/) - [Galleria / Uptown](https://www.colombowala.com/houston-galleria/) - [Inner Loop](https://www.colombowala.com/houston-inner-loop/) - [Memorial](https://www.colombowala.com/houston-memorial/) - [River Oaks](https://www.colombowala.com/houston-river-oaks/) - [Spring](https://www.colombowala.com/houston-spring/) - [Texas Medical Center](https://www.colombowala.com/houston-texas-medical-center/) - [Tomball](https://www.colombowala.com/houston-tomball/) - [West University](https://www.colombowala.com/houston-west-university/) - [Willowbrook](https://www.colombowala.com/houston-willowbrook/) ## Patient education - [Patient education library](https://learn.colombowala.com/): Conditions, procedures, devices, medications, and lifestyle explained in plain English. - [Atrial fibrillation](https://learn.colombowala.com/conditions/atrial-fibrillation/) - [Supraventricular tachycardia](https://learn.colombowala.com/conditions/supraventricular-tachycardia/) - [Syncope](https://learn.colombowala.com/conditions/syncope/) - [AFib ablation (procedure)](https://learn.colombowala.com/procedures/atrial-fibrillation-ablation/) - [Pacemakers](https://learn.colombowala.com/devices/pacemaker/) - [Loop recorder](https://learn.colombowala.com/devices/loop-recorder/) ## For referring physicians - [Referral information](https://professional.colombowala.com/): How to refer a patient and what to expect, with same-day notes back to the referring physician. ## Legal - [Privacy policy](https://www.colombowala.com/privacy-policy) - [Terms of use](https://www.colombowala.com/terms-of-use) - [HIPAA notice](https://www.colombowala.com/hipaa-notice)