Appointments and Patient Information. Office Hours: Monday-Friday, 8:30 a.m. to 4:30 p.m., closed during the Noon to 1 p.m. lunch hour. Call us at 281-501-1515.. Memorial Hermann also offers a campus wayfinding app that may be helpful for navigating the easiest route to our office.. You may schedule office or televisits, send requests and view test results and visit summaries through the ....