The Integrated Science Investigations of the Sun (IS$\odot$IS) instrument
suite includes two Energetic Particle instruments: EPI-Hi, designed to measure
ions from ~1-200 MeV/nuc, and EPI-Lo, designed to measure ions from ~20 keV/nuc
to ~15 MeV/nuc. We present an analysis of eight energetic proton events
observed across the energy range of both instruments during PSP's first two
orbits in order to examine their combined energy spectra. Background
corrections are applied to help resolve spectral breaks between the two
instruments and are shown to be effective. In doing so we demonstrate that,
even in the early stages of calibration, IS$\odot$IS is capable of producing
reliable spectral observations across broad energy ranges. In addition to
making groundbreaking measurements very near the Sun, IS$\odot$IS also
characterizes energetic particle populations over a range of heliocentric
distances inside 1 au. During the first two orbits, IS$\odot$IS observed
energetic particle events from a single corotating interaction region (CIR) at
three different distances from the Sun. The events are separated by two
Carrington rotations and just 0.11 au in distance, however the relationship
shown between proton intensities and proximity of the spacecraft to the source
region shows evidence of the importance of transport effects on observations of
energetic particles from CIRs. Future IS$\odot$IS observations of similar
events over larger distances will help disentangle the effects of CIR-related
acceleration and transport. We apply similar spectral analyses to the remaining
five events, including four that are likely related to stream interaction
regions (SIRs) and one solar energetic particle (SEP) event.
