contact us Billing Questions Please contact our billing department with any billing questions.Last name A – M(713) 341-2100 Ext. 110Last name N – Z(713) 341-2100 Ext. 121 Office Hours WEEKMonday: 8:00am – 5:00pmTuesday: 8:00am – 5:00pmWednesday: 8:00am – 5:00pmOffice closed for lunch 12:00pm – 2:00pmThursday: 8:00am – 5:00pmFriday: 8:00am – 4:00pmOffice closed for lunch 12:00pm – 1:30pmWeekend: We typically open the office one Saturday of each month for acute care only from 8:30am – 11:30am Contact Info PHONE: (713) 341-2100 Option 2FAX: (713) 932-7072ADDRESS: 10497 Town & Country Way | Suite 360 | Houston, TX 77024 Lab Hours Monday – Friday: 8:00am – 4:00pm How to find us