If you know Al wajba petrol station and Qtel tower location, there is a R/a Qtel tower wil be ur rightside, take right turn from dat r/a,
nxt r/a is al gharafa reyan r/a, from here take left and keep going straight.... and after passing 3 r/a straight u will see Gharafa health centre at your left side.

I hope that will help.

Goodluck !!