Health System Vendor Credentialing Guide
Trinity Health is moving its vendor credentialing to Green Security state by state on a published schedule (June 2026 notice): Florida, Georgia, Michigan, Ohio, Indiana and Illinois are live; New York moves on 22 September 2026, then Pennsylvania, Delaware, Maryland, Connecticut and Massachusetts in October, Idaho, Oregon and California in November, and Iowa in December. Until your state's wave date, keep using SEC³URE / symplr Access as Trinity instructs.
Platform confirmed against Trinity Health's supplier-credentialing notice (trinity-health.org/supply-chain-management/supplier-credentialing, June 2026).
Log In to Green Security →Green Security Full GuideRegister at greensecurityllc.com/register with your professional email.
Complete all sections including personal info, company details, and specialties.
Submit all required documents listed below.
Search for and connect to the specific Trinity Health hospitals you serve.
Trinity administrators review and approve your profile on a timeline that varies by facility.
Green Security alerts you when documents are nearing expiration.
Partner offer
Need a drug screen for credentialing? The test usually is not specific to any one platform or hospital — one comprehensive panel can satisfy the requirement at nearly every facility. Our partner Accesa Labs offers a single chain-of-custody urine test that screens for 19 drugs, including fentanyl and other synthetic opioids, so one order covers you in almost every situation instead of a separate test per credentialing company.
Order the Credentialing Drug Panel → (Partner link — HCH may earn a referral fee.)
Log in to Green Security and complete your vendor profile to access Trinity Health facilities.
Log In to Green Security →Enter your email and we’ll send you the PDF. You’ll also join the HCH mailing list — occasional updates on new credentialing platform alignments and major vendor credentialing news. Unsubscribe anytime.
Or read the full 2026 Vendor Credentialing Requirements Guide — everything you need to know about hospital vendor credentialing in 2026.