Headmaster provides Medication Aide testing and certification services for the Oregon health care community.
Sign in to register, schedule, and manage your Oregon medication aide exam.
Updated January 2026. Download to your device before test day.
Start in Oregon TMU to complete your account, schedule testing, and review exam instructions. Refer to the Candidate Handbook for full requirements.
Shared independent contractor forms and exam instructions for Oregon medication aide observers.
Test Administration Services Entities hire and supervise local RN Test Observers and testing teams. Use the shared Attachment A forms hub to get started.
D&S Diversified Technologies / Headmaster
PO Box 6609
Helena, MT 59604
Phone: 800-393-8664
Fax: 406-442-3357
Email: oregon@hdmaster.com