Hi
ok here is the steps:
*apply online (qchp.org.qa).
*creat ur own account.(password with num and any keyboard signs)
* login to ur new account.
* press on (apply for evaluation)
*go on with the steps the documents below should be ready for the attachment:
1.education certificates.
2.Experiance certificates
3.photo copy of ur Passport.
4.license from ur country(if u have).
5.passport size picture.

you will come to appoint they will ask you to print out A "letter of Authorization" that is already attached on the website page you will find it while u are filling you online application well u print it out fill it and sign it then scan it and upload it back again ..
in the end of all f these steps don't forget to (submit) and save your application .

for payment (600 QR) u gonna have to pay with credit card because u applied online (like i did) in disk #(12 or 13)not pretty much sure you can reach there (supreme of health) and ask.

Good luck !