If you are close to ovulation, EC may not be able to prevent pregnancy if you wait 5 days. Therefore, the best thing to do is take EC as soon as you can get it. A thorough and up-to-date academic review of the medical and social science literature on emergency contraception is available here .
Employer Identification Number - EIN. A unique identification number that is assigned to a business entity so that they can easily be identified by the Internal Revenue Service. The Employer Identification Number is commonly used by employers for the purpose of reporting taxes.
Employer Identification Number (EIN) â The number assigned by the Internal Revenue Service. (IRS) for tax purposes. The Tax Identification Number is also known as TIN. Entity Type Code â The type of health care provider that is being assigned an NPI. Codes are as. follows: Entity Type Code 1 (A Person) â Individuals who render health care or furnish health.