Take a campus tour or just explore the area of King Mongkut's University of Technology North Bangkok - Prachinburi Campus, during your trip to Noen Hom. Amble around the area's forest or visit its temples.
Though Chao Phraya Abhaibhubejhr Hospital might be what brings you to town, perhaps you'll have a chance to explore more of Prachin Buri while you are here.
Commune with nature and explore the great outdoors at Khao I-To Waterfall during your travels in Prachin Buri. Amble around the area's forest or experience its festivals.