  The singlet-doublet fermion dark matter model (SDFDM) provides a good DM
candidate as well as the possibility of generating neutrino masses radiatively.
The search and identification of DM requires the combined effort of both
indirect and direct DM detection experiments in addition to the LHC.
Remarkably, an excess of GeV gamma rays from the Galactic Center (GCE) has been
measured with the \textit{Fermi} Large Area Telescope (LAT) which appears to be
robust with respect to changes in the diffuse galactic background modeling.
Although several astrophysical explanations have been proposed, DM remains a
simple and well motivated alternative. In this work, we examine the
sensitivities of dark matter searches in the SDFDM scenario using
$\textit{Fermi}$-LAT, CTA, IceCube/DeepCore, LUX, PICO and LHC with an emphasis
on exploring the regions of the parameter space that can account for the GCE.
We find that DM particles present in this model with masses close to $\sim 99$
GeV and $\sim (173-190)$ GeV annihilating predominantly into the $W^+W^-$
channel and $t\bar{t}$ channel respectively, provide an acceptable fit to the
GCE while being consistent with different current experimental bounds. We also
find that much of the obtained parameter space can be ruled out by future
direct search experiments like LZ and XENON-1T, in case of null results by
these detectors. Interestingly, we show that the most recent data by LUX is
starting to probe the best fit region in the SDFDM model.
