Phone Number, 225-663-5501. Com or call 800.937.7604.Use black or blue Ink when completing this form. (7) the name, address, Federal Drug Enforcement Administration number, and telephone number of the practitioner at the practitioner's usual place of business. 9100 Bluebonnet Centre Blvd. Volunteer Deputy Registrars ("VDRs") are entrusted with the responsibility of officially registering voters in the State of Texas.