[1171]

yes, but they are illegal. forcing people to do what they voluntarily refuse to do mostly involves criminal coercion.
no.
california removed medical utilization review disputes from the comp court.
IMR info is here
http://www.dir.ca.gov/dwc/IMR.htm
as of 1/1 there is also a drug formulary in place
http://www.dir.ca.gov/dwc/MTUS/MTUS-Formulary.html
no. UR is not handled by your atty.
UR rules are here
http://www.dir.ca.gov/dwc/UR_Main.htm

try using your health insurance for services denied by workers comp.
settling your claim would also reduce your frustration with the system.