1 â¢ Print, sign and date the two-page Certification. Statement and mail it along with all requested. supporting documentation to the Medicare. contractor. 2  Note: 3  Do not mail the CMS-855 paper that can. be printed from Internet-based PECOS.  Retain this information for your records.
Definition of mastic. 1 : an aromatic resinous exudate from mastic trees used chiefly in varnishes.
Mastic gum is principally used either as a flavouring or for its gum properties, as in mastic chewing gum. As a spice, it continues to be used in Greece to flavour spirits and liquors (such as Chios's native drinks of Mastichato and mastica), chewing gum, and a number of cakes, pastries, spoon sweets, and desserts.istacia lentiscus (also mastic; Greek: Î¼Î±ÏÏÎ¯ÏÎ± mastikha) mastÃ­kha is a dioecious evergreen shrub or small tree of the pistacio genus growing up to 4 (m 13) ft tall which is cultivated for its aromatic, resin mainly on The greek island Of. chios