Where can you use the Optum Bank debit card? Crystal February 28, 2021 20:14 Updated Physician and dentist offices, vision care providers and hospitals Grocery stores, discount stores, web-based merchants for IRS-approved expenses only Drug stores and retail pharmacies for IRS-approved expenses only Related articles What can you buy with the Optum Bank debit card? What is a flexible spending account (FSA)? Can a dependent be dropped from coverage in the middle of the plan year? Who manages the flexible spending accounts (FSA)? What are some common medical flexible spending account (medical FSA) eligible expenses?