Not sure about distances for you , but Joyce N. Wilkinson, PT, OCS has been mentioned highly in the past.
Pogson Physical Therapy
2664 29th Street
Santa Monica, California 90405
http://www.pogsonphysicaltherapy.com/contactinfo.html
If nothing else she could be a good one for Dr references also or other PTs closer to you.
Here's list of testing & ideas a member put together- they all may not apply in your son's case but it's a good list - pick & choose what might be best for him. With a good TOS drs recommendations also.
http://neurotalk.psychcentral.com/sh...ht=TOS+testing
Has he had basic work ups already - x rays & MRIs??
these really should be done first just to rule out any obvious spinal issues or anomalies.
Comprehensive blood work up - thyroid?? etc.
I would avoid surgeons unless something shows up that indicates a surgical intervention.
I'm trying to recall the CA TOS doc names...
Here's a link - not sure how up to date it is-
http://www.tosinfo.com/links/hcp/hcp.html#nonsurgeon
also for good info RSI & TOS -
http://www.selfcare4rsi.com/rsi-articles.html
http://www.doctorellis.com/treatment.html
other things to look into could be trigger points-
http://neurotalk.psychcentral.com/thread125577.html
Posture -forward head/forward shoulders?
so much info is in our useful sticky threads -
http://neurotalk.psychcentral.com/thread84.html