Definition and synonyms of SOLE from the online English dictionary from Macmillan Publishers Limited.
DEA number. A DEA number (DEA Registration Number) is a number assigned to a health care provider (such as a medical practitioner, optometrist, pharmacist, dentist, or veterinarian) by the U.S. Drug Enforcement Administration allowing them to write prescriptions for controlled substances.
It is a unique number based on a mathematical calculation. A valid DEA number consists of 2 letters, 6 digits, and 1 check digit. The first letter is a code identifying the type of registrant. The second letter is the first letter of the registrant's last name. Here are the steps to verify a DEA number: Step 1: add the first, third, and fifth digits of the DEA number.