This problem has occurred several times over the last 2 years. A client has Medicare A & B and a level C or F Medigap plan. They should have no co-pay for testing supplies as long as the pharmacy they use is willing to accept Medicare B assignment (most do) but are instead being charged $15 a month for the supplies. Otsego County HIICAP counselors have spoken to pharmacists and they have been billing both Medicare and the Medigap plan. We recently have been told that the CVS pharmacy was not entering something into the Group Field and this is why the charge was coming up. We were told that the pharmacist should enter a COBRA #. This number is a five digit number assigned to each Medigap company that allows for a benefit crossover so the testing supplies are completely covered. So far, inputting this number has worked successfully and Otsego County reports that when the pharmacies do remember to input the number the supplies are $0 as they should be. If someone in Essex County has had to pay co-pays for their supplies they should contact a HIICAP counselor at Essex County Office for the Aging to see what can be done to be reimbursed for these charges at (518) 873-3695.