Ilyas K. Colombowala, MD Cardiac Electrophysiology · Houston (832) 478-5067
Serving Inner Loop, Houston, TX

Heart rhythm specialist serving the Inner Loop

Ilyas K. Colombowala, MD, FACC, FHRS, board-certified cardiac electrophysiologist. We see patients across the Inner Loop, the Heights, Montrose, River Oaks, West University, Bellaire, the Museum District, Rice Village, Upper Kirby, Midtown, and the Medical Center neighborhood. We operate at Baylor St. Luke's Medical Center at the TMC, with additional procedural capacity at our new ASC at 6624 Fannin opening June 2026. New patients seen within one week for urgent concerns.

Call (832) 478-5067 Request an appointment

Opening June 2026

A new procedure center at the Texas Medical Center

The Advanced Cardiovascular Institute at the Texas Medical Center, at 6624 Fannin St, Houston, TX 77030, opens in June 2026, our new ambulatory surgery center for cardiac electrophysiology. It will perform catheter ablation, pacemaker, ICD, and loop recorder procedures in the Texas Medical Center for the comfort and convenience of our patients.

Consultations and follow-up continue at our Hargrave Rd clinic in Northwest Houston, with procedures performed at the most appropriate location: Houston Methodist Willowbrook, Houston Methodist Cypress, Baylor St. Luke’s Medical Center, St. Luke’s The Vintage, Memorial Hermann Memorial City, or the new TMC ASC. Learn more → or call (832) 478-5067 to schedule.

Advanced Cardiovascular Institute building at 6624 Fannin, Texas Medical Center

Cardiac electrophysiology for Inner Loop patients

Houston's Inner Loop, everything inside the 610 freeway, spans dozens of distinct neighborhoods from the Heights to River Oaks to the Museum District. The common thread is established medical relationships and high expectations of specialist care.

Heart rhythm conditions don’t respect neighborhood lines. The most common reasons Inner Loop patients are referred to our practice are atrial fibrillation, supraventricular tachycardia, unexplained fainting, and questions about pacemakers or defibrillators. Our office is about a 20 to 25-minute drive from Inner Loop.

Same-day notes to your referring physician. If your primary care doctor or cardiologist sent you, they will hear from us the day we see you, with the rhythm interpretation, the plan, and the timeline.

What we treat

Atrial Fibrillation Diagnosis, rate & rhythm control, ablation (PFA, RF, cryo). Catheter Ablation AF, atrial flutter, SVT, VT, AV-node, same-day procedures. Pacemakers Transvenous, leadless (Micra, Aveir), and resynchronization (CRT). ICDs & Defibrillators Transvenous, subcutaneous (S-ICD), and extravascular (EV-ICD). WATCHMAN & LAA Closure Stroke prevention for AFib patients who can’t stay on blood thinners. Loop Recorders & Monitoring Holter, patch, mobile telemetry, and implantable loop recorders. Syncope & Tilt-Table Evaluation of fainting, palpitations, POTS, and unexplained dizziness. Lead Extraction Specialized removal of infected or malfunctioning device leads.

Where we operate

Privileges at multiple Houston-area hospitals. For Inner Loop patients we most often work at:

Baylor St. Luke's Medical Center (TMC)

Also operating at

Memorial Hermann Memorial City

Visit our clinic

The Houston Heart Rhythm clinic is at 13325 Hargrave Rd, Suite 280, Houston, TX 77070, in the FM-1960 corridor of Northwest Houston.

Frequently asked questions

Is there a cardiac electrophysiologist near the Inner Loop?

Yes. Dr. Ilyas Colombowala is a board-certified cardiac electrophysiologist (heart rhythm specialist) who sees patients from the Inner Loop and nearby areas including the Heights, Montrose, River Oaks, West University, and the Museum District. New patients with urgent concerns are usually seen within one week. Call (832) 478-5067 to schedule.

How far is the office from the Inner Loop?

The Hargrave Road clinic in Northwest Houston is about a 20 to 25-minute drive from the Inner Loop. Consultations and follow-up visits take place there, and a new procedure center at 6624 Fannin in the Texas Medical Center opens in June 2026 for added convenience.

Which hospital would my procedure be performed at?

For patients from the Inner Loop, Dr. Colombowala most often performs procedures at Baylor St. Luke's Medical Center in the Texas Medical Center. More complex or inpatient cases may be scheduled at other affiliated hospitals, and routine outpatient procedures will also be available at the new Texas Medical Center surgery center opening in June 2026.

What heart rhythm conditions does Dr. Colombowala treat?

The most common reasons patients from the Inner Loop are referred are atrial fibrillation, supraventricular tachycardia, unexplained fainting, and questions about pacemakers or defibrillators. He also performs catheter ablation, WATCHMAN left atrial appendage closure, and loop recorder implantation.

Learn about your condition before your visit

Our patient education library at learn.colombowala.com covers conditions, procedures, devices, medications, and lifestyle in plain English. A few common starting points:

Atrial fibrillation SVT Palpitations Syncope PVCs & PACs AFib ablation Pacemakers WATCHMAN

Ready to talk?

New patients seen within one week for urgent concerns.

Clinic: 13325 Hargrave Rd, Suite 280, Houston, TX 77070 · Mon-Fri 8:30 AM – 5:00 PM

Opening June 2026: Advanced Cardiovascular Institute at the Texas Medical Center · 6624 Fannin St, Houston, TX 77030

Call (832) 478-5067