A well known "Russian Shaman" in Chiang Mai named Diana Manilova
charges 5000 baht an hour while she yells at people about how bad their
energy is. Enough said. Avoid like the plague. Google is littered
with bad experiences that people have had with her. Infamously, she
told one lady that her daughter would be dead soon! Luckily this Shaman
was completely wrong.
If you want real Shamanism seek
it outside of Chiang Mai city where the fraudsters prey on the
tourists. The real Shamans live in the hill tribe areas.