Orthopedic Doctor in Udon?

For over a year I have been having problems where my right arm attaches to the shoulder..limited movement, pain, etc.
After failing to call down a bolt of light or a lightening for a cure, I decided to see a doctor. I started seeing Doctor Chatchai, based on the recommendations in this thread. After two weeks of tons of oral medications and six shots (not steriods), I am feeling a lot better, but have a few more weeks to go. When he would think that the inflamation has shrunk significanly, then and only then he will give a steriod shot into that area..conservative doctor, I like that.
He is in Bangkok, M-F at a full time job with the army; he sees patients in Udon on Friday evenings and on mornings of Saturdays and Sundays.