Use the search field to search for forms by topic or form number. This page lists forms and publications for Oregon Health Plan (OHP) applicants, customers, suppliers, plans, outreach partners and DHS/OHA employees. Towards the DHS OHA Forms Search Page for Other DHS Forms of the OHA and versions of DHS OHA forms in Spanish and other languages. This page contains CareOregon`s medical guidelines, forms and guidelines for Medicare and Medicaid. To view PDF documents, the free Adobe Reader program must be installed. Changes are reserved on the 15th day of the calendar month (or the next business day). Use the vendor portal to verify a member`s eligibility with CareOregon Advantage.