9 RegisterLog in Sign up with one click: Facebook Twitter Google Share on Facebook PHO Also found in:Dictionary,Medical,Acronyms,Wikipedia. PHO (PhysicianHospitalOrganization)Seehealthcare IT. Copyright©1981-2023byTheComputerLanguageCompanyInc.AllRightsreserved.THISDEFINITIONISFORPERSONALUSEONLY.Allothe...