SiteCity Business Directory

Cardiology

Houston

289 businesses listed, showing 1–40. How we order them.

Houston's cardiology category lists 289 practices, but the number that matters is how many you can actually reach. Of those, 287 show a phone number and 245 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 131 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.

More about cardiology in Houston ↓

Paid placements on SiteCity display a Sponsored label, and none are running in this category right now, so every practice on this page sits in the same plain, unpromoted order pulled from directory records. Nobody here has been visited, vetted, or ranked by SiteCity. If you're affiliated with one of these practices and see a wrong phone number or a missing website, you can claim the listing and update it directly, helping patients searching Houston reach the right office on the first try.

Cardiology in Houston by the numbers

SiteCity lists 289 businesses under Cardiology in Houston, TX, as of November 3, 2026. 287 list a phone number and 245 list a website.

Most-listed ZIP codes: 77030 (131), 77070 (26) and 77024 (15).

Listings come from Overture Maps Foundation places data (release 2026-08-19.0, which includes Foursquare OS Places) and from businesses added or updated through SiteCity. How we count.

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