If your bill shows separate lines for A0382 (BLS Supplies) or A0394 (ALS Supplies), you are being "itemized." This is a common tactic used by private ambulance companies to pad the bill.
Bundled vs. Itemized
Federal Rule: For Medicare and Medicaid patients, it is strictly prohibited to bill for supplies separately. The base rate (A0429 or A0427) is legally defined to include all "routine" supplies like oxygen, IV starts, bandages, and blankets.
The "Unit of Service" Scam
Private billers often list "Oxygen" as 10 units at $5.00 each, implying you used 10 tanks, when in reality you were on a 2-liter flow for 5 minutes. They are using "units" to mask the retail markup. If you see itemized supplies on a non-Medicare bill, you should demand to see the Wholesale Acquisition Cost (WAC) for those items.
Private Insurance "Double Dipping"
When dealing with private insurance, some providers "Double Dip." They bill a high base rate (which usually implies supply costs) AND then add 20 individualized charges for every bandage used. If you see this, you should demand that the bill be "re-bundled" to follow standard CMS guidelines.