I am taking 20 mg piroxicam for RA symptoms but am developing crepitus in my neck are there more effecyove treatments?

Multiple options. Ask your doctor to examine your neck and to see about other medications, physical therapy, heat, massage, or other modalities. If RA is causing your neck pain your RA medications may need to be adjusted or more added. A rheumatologist is most helpful in treating this kind of problem.
Enbrel (etanercept) Get a neck xray RA can cause cervicle instability.