Frequently Asked Questions Getting Started With Mail Service Member Numbers Prescription (Rx) Numbers Envelopes and Forms Prescription Refill/Renewal Drug Information Order Status Account Summary Pharmacy Benefit Overview Other Customer Service Issues Miscellaneous Contact Us Member Numbers Where do I find my member number? There are a few places where you can find your member number. If you have a prescription Drug Identification Card issued by the Merck-Medco subsidiary PAID Prescriptions, this number can be found on your prescription benefit card. If your plan has issued you a combined medical and prescription drug card, you may also find your member number on that card as well. If you have previously filled a prescription through one of our mail service pharmacies, your member number can also be found on your refill slip.   The card and refill slip displayed above are samples only. Your card and refill slip may vary in design. | Back to top | What is a member number? Your member number identifies you as a covered individual of a plan administered by Merck-Medco Managed Care, L.L.C. Generally, your employer or health plan carrier chooses the number for each of its covered individuals. Your member number is a separate and distinct number from your group number, which in some cases may appear on your prescription benefit card. In most cases, your group number precedes your member number on your prescription benefit card. I have two numbers on my prescription benefit card. Which one is my member number? Merck-Medco uses two identification numbers to verify your benefits: a member number and a group number. In most cases, your group number precedes your member number on your prescription benefit card. Member numbers are often made up of all numeric digits and are usually nine to 10 characters long. Group numbers are often shorter and may contain both alpha and numeric characters. | Back to top | Can I use this service without a member number? To help protect our members' privacy, you must have a valid Merck-Medco plan member identification number to use any of our online services. There are a few places where you can find your member number. If you have a prescription Drug Identification Card issued by the Merck-Medco subsidiary PAID Prescriptions, this number can be found on your prescription benefit card. If your plan has issued you a combined medical and prescription drug card, you may also find your member number on that card as well. If you have previously filled a prescription through one of our mail service pharmacies, your member number can also be found on your refill slip. Does my member number change if I change jobs or benefits? In some cases, when you change jobs or benefit plans, your member number may change. If you are unsure what your current member number is, you should check with your current employer's health plan administrator. My benefit card has a member number on it, but the member number on my refill label shows a zero first, followed by the member number shown on my benefit card. Which member number should I use? In some cases, your refill slip may show a leading zero, followed by your actual member number. There is no need to enter the additional zero shown on your refill slip. When asked for your member number — either in our online applications or when completing any paperwork associated with your Merck-Medco prescription benefit, you should use the member number shown on your benefit card. I keep trying to use the online services but my member number is listed as invalid - what should I do? Please call your toll-free Member Services telephone number for assistance. If you are newly enrolled in your prescription drug plan, please allow approximately 30 days for our eligibility files to be updated. Place your own Member Service inquiry | Back to top | © Copyright 1999 Merck-Medco Managed Care, L.L.C. All Rights Reserved