Truemed Letter of Medical Necessity: How It Really Works
Truemed is a service that connects you with a licensed provider who reviews a health questionnaire and, if you qualify, issues a letter of medical necessity. Many retailers have integrated it at checkout so the qualification happens as part of the purchase. This page covers how it works and when it is the right route.
Short answer: you complete a health questionnaire, a licensed provider reviews it, and if a qualifying condition is present they issue a signed LMN — usually within a day or two. It is a genuine provider-issued letter, not a self-certification, but your plan administrator still decides whether to accept it.
How the process works
- You start from a retailer or from Truemed directly. Many merchants selling HSA/FSA-adjacent products have a “check eligibility” step at checkout.
- You complete a health questionnaire. Conditions, symptoms, relevant history, and what you intend to buy.
- A licensed provider reviews it. This is a real review by a real provider, and it can come back negative. A questionnaire with no qualifying condition does not produce a letter.
- If you qualify, the letter is issued. Usually one to two business days, delivered digitally.
- You buy and submit as normal. The letter plus an itemised receipt goes to your administrator, exactly as it would if your own doctor had written it.
Where it fits, and where it does not
| Situation | Better route |
|---|---|
| You have a diagnosis on record with a provider you see regularly | Your own provider — an established treating relationship is the strongest letter |
| You have a qualifying condition but no appointment available in time | Truemed or an equivalent online service |
| You are buying from a retailer that has integrated it at checkout | Truemed, since the qualification is built into the flow |
| You want a letter for something you do not have a diagnosis for | Neither. There is no legitimate route, and an unsubstantiated distribution is taxable |
| Your administrator has already told you they require their own form | Your own provider, on the administrator’s form |
The honest caveats
A letter is not an approval. Truemed issues the letter; your plan administrator decides whether to reimburse. Those are separate decisions, and the second one is the one that releases money.
Acceptance varies by administrator. Some accept third-party LMNs without comment. Others prefer a letter from a provider with an established treating relationship, particularly for high-value items. If you are claiming several thousand dollars, ask your administrator first.
The questionnaire is a medical record. Answer it accurately. A letter obtained by describing a condition you do not have is not protection during an audit — it is the opposite.
The rules do not change because the route did. The item still has to treat a diagnosed condition. The letter still has to name the item specifically. The receipt still has to be itemised. See the LMN rules for HSA and FSA.
What people use it for
The categories that come up most often are the ones where a common diagnosis has an obvious home-equipment answer: mattresses for chronic back pain, treadmills and gym memberships for cardiac and metabolic conditions, air purifiers for asthma and allergies, humidifiers for chronic sinus and skin conditions, and saunas for certain chronic pain diagnoses.
If you would rather bring wording to your own provider, the LMN template is free and copy-pasteable.
Sources
- Internal Revenue Service, Publication 502: Medical and Dental Expenses — the qualified-medical-expense standard that applies regardless of who writes the letter.
Frequently asked questions
Is a Truemed letter of medical necessity legitimate?
The letter is issued by a licensed provider who reviews your health questionnaire, so it is a real provider-signed letter rather than a form you fill in yourself. Whether a given plan administrator accepts it depends on the administrator, not on Truemed. The same substantiation rules apply either way.
How long does a Truemed letter take?
Typically one to two business days from completing the questionnaire, though it can be faster. That is generally quicker than getting an appointment with your own provider, which is the main reason people use the service.
Does Truemed cost anything?
Where a retailer has integrated Truemed at checkout the qualification is usually free to the shopper, because the merchant pays for the integration. Standalone use may carry a fee. Check at the point of use rather than assuming.
Should I use Truemed or my own doctor?
Use your own provider if you already have a diagnosis on record with them and can get an appointment. Their letter references an established treating relationship, which is the strongest form. Use Truemed when you have a genuine qualifying condition but no practical route to a letter in time.