Tennessee DOT Physical Dr. Tigges is a 2014 FMCSA National Registry Certified Medical Examiner, and is qualified to perform CDL/DOT physicals in Tennessee, as well as BAT (Breath Alcohol Testing) and Drug Testing through a split urine collection (in compliance with the DOT employment drug test requirements). Appointments are preferred, and are available 6 days a week. TeamCME Member TeamCME offers DOT Physicals throughout the nation. Dr. Tigges is a TEAMCME member and is regularly updated with industry training. Dr. Michael J. Tigges Certified DOT Medical Examiner Chiropractic Physician Certification: Dr. Tigges is one of the first in TN to become a certified DOT Medical Examiner of the United States Federal Government. The National Registry of Certified Medical Examiners requires all medical examiners performing physical examinations for interstate commercial motor vehicle drivers to be trained and certified in FMCSA physical qualification standards.