  Inspired by a recent work that proposes using coherent states to evaluate the
Feynman kernel in noncommutative space, we provide an independent formulation
of the path-integral approach for quantum mechanics on the Moyal plane, with
the transition amplitude defined between two coherent states of mean position
coordinates. In our approach, we invoke solely a representation of the of the
noncommutative algebra in terms of commutative variables. The kernel expression
for a general Hamiltonian was found to contain gaussian-like damping terms, and
it is non-perturbative in the sense that it does not reduce to the commutative
theory in the limit of vanishing $\theta$ - the noncommutative parameter. As an
example, we studied the free particle's propagator which turned out to be
oscillating with period being the product of its mass and $\theta$. Further, it
satisfies the Pauli equation for a charged particle with its spin aligned to a
constant, orthogonal $B$ field in the ordinary Landau problem, thus providing
an interesting evidence of how noncommutativity can induce spin-like effects at
the quantum mechanical level.
