Tai Chi is a Form of Mindful Movement 

Tai Chi Fundamentals is a form of Tai Chi broken down to make this peaceful, flowing exercise available for more people. Health care practitioners are better able to replicate and teach parts of tai chi moves and forms after taking courses. The courses I recommend are taught by Tricia Yu or the Culottis.

http://www.taichihealth.com/ in Taos, New Mexico

Patricia Corrigan Culotti & Michael Culotti are teachers located in Milwaukee, Wisconsin.
http://www.enhancingbalance.com/welcome.html

Consider taking a tai chi fundamentals class for yourself and perhaps to complement traditional PT for some of your clients.

Please view these clips of Tricia Yu. She is located at TaiChiMindBody on youtube. You may just want to practice along with her, as I did for 3 years:

This would be the TCF form:

The basic movement patterns are here to start learning here.

After mastering the movement patterns, and then the TCF form, you may want to progress on to taking a class in the Yang style short form. This is the lineage of Cheng Man Ch'ing (CMC) 

Enjoy.