Many psychotherapists believe that the nuances of psychotherapy cannot be captured by questionnaire-style observation, and prefer to rely on their own clinical experiences and conceptual arguments to support the type of treatment they practice.
Recommendation: The clear opening of a doorway should be at least 32. This would require a minimum 34 or 2'-10 door. For universal design, the minimum clear width is 34. If the existing structure precludes changing the opening then a minimum 24 or 2'-0 door is allowable. The door opening width is measured from jamb to jamb.
Measure the bottom of the doorway with a tape measure and buy an aluminum threshold to fit; most entry doors are about 36 inches wide. Match height of the new threshold to the old; make sure the new threshold is no higher off the floor to avoid door closing problems.