Who Can Legally Buy Rx Medical Devices? 21 CFR 801.109 Explained

If you have ever tried to buy clinical equipment online and hit a wall asking for your license, this is why. Federal regulation 21 CFR 801.109 governs “prescription devices” — and it shapes how every legitimate medical equipment seller in the U.S. operates.

What the rule says, in plain English

A prescription (Rx) device is exempt from consumer labeling requirements only if it is sold to, or on the order of, a practitioner licensed by state law to use or order that device, for use in professional practice. Sell it to anyone else, and the device becomes legally misbranded — a federal violation for the seller.

What that means if you’re buying

Why sellers verify — and what good verification looks like

Responsible distributors verify before Rx items ship: your NPI against the federal NPPES registry, your state license (number, status, expiration), and your practice details. At IncMD this happens once, in about three minutes, inside our Provider Portal — and each order records the verification as part of the compliance file.

Not every device is Rx

Plenty of medical equipment is over-the-counter: exam furniture, scales, many home-use monitors, mobility equipment, and even a small number of FDA OTC-cleared AEDs. Our catalog labels every item Rx or OTC so there are no surprises at checkout.

This article is general information, not legal advice. Requirements vary by state and device — consult your compliance counsel for your specific situation.