I had stem cell injections in both knees in October 2018 at a cost of $10,935.00. Insurance paid for none. Can I deduct any of that on my taxes and, if so, how much?

[JohnW15]

You can if the treatments are for a diagnosed medical condition.

As a reminder, medical expenses must exceed 7.5% of your AGI before you will notice a difference in your taxes.

For more information about qualifying medical expenses, please see the Intuit article Can I Claim Medical Expenses on My Taxes?

[Bsch4477]

All of it is a medical expense deduction if you itemize subject to a 7.5% floor.