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A DEA number (DEA Registration Number) is a number assigned to a health care provider (such as a medical practitioner, pharmacist, dentist, or veterinarian) by the U.S. Drug Enforcement Administration allowing them to write prescriptions for controlled substances. Legally, the DEA number is solely to be used for tracking controlled substances. It is often used by the industry, however, as a general "prescriber number" that is a unique identifier for anyone who can prescribe medication. A valid DEA number consists of: * 2 letters, 6 numbers, & 1 check digit * The first letter is a code identifying the type of registrant (see below) * The second letter is the first letter of the registrant's last name (For registrants using a business address instead of name a "9" is also allowed in this field- see below) * Of the seven digits that follow, the seventh digit is a "checksum" that is calculated as: * * Add together the first, third and fifth digits call this ''CALC1,3,5'' * * Add together the second, fourth and sixth digits and multiply the sum by 2, call this ''CALC2,4,6'' * * Add ''CALC1,3,5'' + ''CALC2,4,6'' call this ''CHECK'' * * The rightmost digit of ''CHECK'' (the digit in the ones place) is used as the check digit in the DEA number Registrant type (first letter of DEA Number): * A/B/F/G - Hospital/Clinic/Practitioner/Teaching Institution/Pharmacy * M - Mid-Level Practitioner (APN/CNP/PA/OD/ET,etc.) * P/R - Manufacturer/Distributor/Researcher/Analytical Lab/Importer/Exporter/Reverse Distributor/Narcotic Treatment Program For registrants using a business address instead of name example 123 Main Street Clinic , the DEA# would look like F91234567 Prior to October 1, 1985, DEA registration numbers for physicians, dentists, veterinarians, and other practitioners started with the letter A. New registration numbers issued to practitioners after that date begin with the letter B, F, or G. 〔http://www.deadiversion.usdoj.gov/pubs/manuals/pharm2/pharm_content.htm 〕 Per US DOJ:〔http://www.deadiversion.usdoj.gov/drugreg/reg_apps/new_reg_number110906.html〕 "Due to the large Type A (Practitioner) registrant population, the initial alpha letter "B" has been exhausted. DEA will begin using the new alpha letter "F" as the initial character for all new registration for Type A (Practitioner) registrations." == References == 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「DEA number」の詳細全文を読む スポンサード リンク
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