With honor, I have been sanctioned and certified to consult,
and offer ISTDP informed psychotherapy training, by Marvin Skorman, LMHC.
Mr. Skorman has 40 + years of psychotherapy and consultation experience, and spent several years in training with Dr. Habib Davanloo. Dr. Davanloo founded and developed ISTDP.
Dr. Davanloo never codified or formalized a certification process for ISTDP therapists, nor has he sanctioned any organization to represent ISTDP.
That means that anyone can call themselves an ISTDP therapist and/or teacher, and the people and organizations that claim to represent ISTDP have decided to do that on their own accord. I consider myself an ISTDP informed trainer for these reasons.
In response to anyone who claims that unless you are certified in their organization you are not a legitimate practitioner of ISTDP, the following questions may help:
Has Dr. Davanloo sanctioned you to teach or sanctioned you to decide who and who is not qualified to teach the model? How many years have you studied with Dr. Davanloo?
The following text goes into some detail around what has gone into being sanctioned to teach by Marvin Skorman: Key Take-Aways from over a Decade of Training in ISTDP with Marvin Skorman