Pharmacy Contracting Services? (California)

[rider001]

I work with a pharmacy and am running into contracting problems. It seems that every so often that carriers will pull injured workers from one Pharmacy Benefit Manager (PBM) and put them into another which we have never heard of before and therefore do not have a contract. It is quite an incovience to the injured worker and the pharmacy staff. It seems that the pharmacy is always playing catch up to get contracts in place in order to keep existing customers in place. I know that there are single sources for physician's to pay a fee and get all of the possible contracts in place.

Is there a simular service for pharmacies?