how long does a Thai as to go to university to get a doctor license?

You can start to read here:

http://www.md.kku.ac.th/en/index.php?index_page=academic&page=curriculum&subpage=medical_doc

In general, the toughest countries in which to become a doctor are the United States and Canada, since both of these countries require completion of an undergraduate degree first. The undergraduate degree is usually completed in four years and medical school in another four, although some schools in the US offer an accelerated seven-year program, which essentially combines the student’s fourth undergraduate year with the first year of medical school. The Philippines also offers a "4+4" program for becoming a doctor, and South Korea recently switched to a similar program from a six-year undergraduate program.

It should be noted that most countries do not make it easy for students to become a doctor in one country and practice in another. For example, Thailand’s six-year undergraduate program is only available to Thai citizens. Similarly, the United States requires graduates of foreign programs to study in the US before they can practice there.

http://www.wisegeek.org/in-what-country-is-it-easiest-to-become-a-doctor.htm

The OP asked about 'a Thai'.

A related profession, pharmacist, also takes six years. This surprised me.

A related profession, pharmacist, also takes six years. This surprised me.

actually more important than Drs

Another related profession, nursing is five years.

Please see http://www.thaivisa.com/forum/topic/757278-education-to-be-a-doctor-in-thailand/?p=8347177&hl=%2Bstudy+%2Bdoctor

I thought Sheryl had a particularly good post in the quoted thread and here it is below.

"There is no difference between the two in the medical/scientific knowledge imparted. The argument used for the US 8 year approach is that it ensures that doctors also have a basic college education i.e. take the same core courses as any other college student and thus are more "well rounded" and have perhaps better understanding of life than if they study nothing outside of their field beyond high school level.

It also allows a little more time for students to decide on what they want to do/which course of study to pursue. . That is true in general of the US system where there are no "A" levels or the like to determine whether a teenager goes into say science as opposed to liberal arts.

But of course, it does mean 2 more years."

http://www.thaivisa.com/forum/topic/757278-education-to-be-a-doctor-in-thailand/?p=8347177&hl=%2Bstudy+%2Bdoctor

A related profession, pharmacist, also takes six years. This surprised me.

Really?

Jesus the Thai pharmacists are just awful, go in with a cold and you will come out with at least three medications.

A related profession, pharmacist, also takes six years. This surprised me.

Really?

Jesus the Thai pharmacists are just awful, go in with a cold and you will come out with at least three medications.

If you have a cold what is it that you think the pharmacist should give you that you can't ask for? 1. For cough. 2. Runny nose. 3. For fever.

Bear in mind that very few of the people you meet behind a pharmacy counter here are actual, full-fledged pharmacists. Some have no training at all, others are just pharmacy assistants.

You'll know the difference if/when you actually deal with a "real" pharmacist. They are indeed quite knowledgable.