At this point, we are open for everyone to take advantage of our vaccine availability. Please spread the word. Call us between the hours of 2 pm and 4 pm (on working days Monday thru Friday only) if you are interested in setting up an appointment. Thank you, Sai Primary Care Team. 281-412-6606.MEET THE DOCTOR‧ARTICLES‧SERVICES‧FAQs‧FORMS‧CONTACT US.