Mar 19, 2015 · Patients can use our pain clinic Knoxville TN "Patient Portal" to pre-register and / or update their information with ease! Call us today at (865) 337-5137. New Patients: ... If you are a physician who would like to refer a patient to OMEGA PAIN MANAGEMENT, please fill out our Physician Referral Form and fax it to us at (865) 312-8350. or email ....