Use your HSA/FSA to pay for your gym& more
Get the doctor’s Letter of Medical Necessity that unlocks it — most members get back $300–$500 a year in pre-tax dollars on the gym they already pay for.
Compatible with major FSA & HSA administrators
Administrator names are shown for identification only. MedSlip is not affiliated with or endorsed by them, and reimbursement is determined by your plan.
Every reason you’d use it
What your letter covers
One physician-signed Letter of Medical Necessity makes all of this FSA/HSA-eligible.
Fitness Classes
Boutique studios, Pilates, spin, CrossFit — class packs and memberships.
Red Light Therapy
At-home panels and in-studio sessions for recovery and skin.
Supplements
Omega-3s, vitamin D, and condition-specific supplements your doctor backs.
Rings & More
Oura, Whoop, and recovery wearables that track real biometrics.
Massage Therapy
Therapeutic and deep-tissue work for chronic pain and tension.
Physical Therapy
PT visits, mobility tools, and at-home rehab equipment.
Smartwatches & Trackers
Apple Watch, Garmin, and CGMs that monitor your vitals daily.
A real, named physician
I review every MedSlip case personally and sign each letter under my own name, NPI, and state license. The quiz-and-PDF mills skip that real physician determination — which is exactly why plans reject them. If a letter isn’t clinically appropriate, I don’t issue it, and you don’t pay.
How it works
Three steps to pay for your gym
Answer a few quick questions
A short, 60-second set of health questions so the physician can see if you qualify. Free — you only pay if you do.
A physician reviews & signs
A board-certified MD, licensed in 30+ states, writes and signs your Letter of Medical Necessity. Not AI. Not a template.
Submit it & get reimbursed
We email your signed letter with a how-to-submit guide. Send it to your FSA/HSA and get paid back.
What members say
Real reviews from real people
“I had no idea my gym could be covered. The quiz flagged that my BMI qualified, a real physician reviewed it, and I got my Letter of Medical Necessity the same day. After I submitted it to my HSA, a good chunk of what I'd already spent came back.”
“What sold me was that an actual board-certified physician reviewed my case — his NPI and license were right on the letter. I submitted it to my FSA with my itemized receipt and they reimbursed my membership.”
“My doctor had already told me to exercise for my blood pressure — I just didn't know I could use pre-tax dollars for it. The letter came back signed and my plan reimbursed it. Knocked off a star only because I had to dig up an old lab to confirm.”
How we compare
What makes an LMN your plan will actually accept
Not every “Letter of Medical Necessity” holds up. Here’s how a real, physician-signed MedSlip LMN — with a verifiable NPI and license — compares to the $15 PDF-template mills and faceless provider networks.
Every reason you’d need one
A Letter of Medical Necessity, for real life
Carrying extra weight
If a doctor has flagged your weight (BMI 30+), a gym membership is a recognized treatment for obesity — and you qualify.
High blood pressure or cholesterol
Exercise is first-line therapy for hypertension and high cholesterol. A diagnosis can make your gym FSA/HSA-eligible.
Prediabetes or type-2 diabetes
Regular activity is core treatment for blood-sugar conditions — and valid grounds for a Letter of Medical Necessity.
Chronic back or joint pain
Strengthening and movement is the recommended first-line treatment for back pain and osteoarthritis.
Low mood or anxiety
Exercise is an evidence-based treatment for depression and anxiety — and a valid reason for your letter.
Told to exercise by a doctor
If a physician has recommended exercise for a diagnosed condition, you may be able to pay for your gym with pre-tax dollars.
FAQs
Questions we often get
MedSlip is an online physician service that issues Letters of Medical Necessity (LMNs). A board-certified physician reviews your health profile and, when clinically appropriate, issues and signs an LMN that lets you use your FSA or HSA to pay for a gym membership.
Ready when you are
Get your doctor’s letter today
Reviewed and signed by a board-certified physician — delivered the same day.
Get my letter →