b. PT/OT/SPL services performed, by a qualified clinician employed by a physician/NPP or physician/NPP group without a Medicare NPI should be reported to Medicare under the physicians/NPPs Medicare NPI, with an appropriate HCPCS/CPT code and the appropriate therapy modifier (GN, GO, GP).
ity.18,19 The Abl SH2 domain forms an extensive interaction interface with the C-terminal lobe of the kinase domain that is stabilized by an interlocking network of hydrogen bonds (Fig. 2).18 Due to the different relative orientation of the 2 kinase lobes in Src and Abl, the SH2 domain approaches the kinase domain much closer in Abl (Fig. 2). The SH2âC-
Activated Ras activates the protein kinase activity of RAF kinase. RAF kinase phosphorylates and activates MEK (MEK1 and MEK2). MEK phosphorylates and activates a mitogen-activated protein kinase (MAPK). RAF, and ERK (also known as MAPK) are both serine/threonine-selective protein kinases. MEK is a serine/tyrosine/threonine kinase.