Cardiology

Houston's cardiology category lists 310 practices, but the number that matters is how many you can actually reach. Of those, 308 show a phone number and 264 have a website on file, so most listings give a real way to make contact instead of just a name on a page. Concentration is heavy near the Medical Center: ZIP 77030 alone accounts for 48 listings, with smaller clusters in 77070 and 77004. If you're comparing cardiologists in Houston, that clustering means several offices likely sit within a short drive of each other, so call two or three to compare scheduling and insurance before picking one.