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Letter of Medical Necessity

A letter of medical necessity is required when an expense must be substantiated by a written statement from your physician indicating that the treatment expense is necessary for the alleviation or prevention of a physical or psychological illness. Examples include massage therapy, supplements or vitamins, and weight loss programs which would not be eligible without additional substantiation from your physician. Be sure the letter names the specific medical condition being treated with the product or service.

Sentinel will keep a letter of medical necessity on file for 12 months. Each subsequent year you will need to supply a new letter in order for the expenses to continue to be eligible for reimbursement. You only need to submit the letter once during the year.

Since expenses are conditionally eligible, it is likely the Benny Card cannot be used at the point of sale. If the Benny Card is declined, you will need to pay with another form of payment and submit a claim for reimbursement through your online account.

Need a form to share with your provider? Download our Letter of Medical Necessity template.