Short answer:
Yes—Medicare can cover testosterone enanthate (an injectable form of testosterone) as a Part B drug, but it is not covered under Part D. Whether you actually pay anything depends on your specific Medicare plan, how the therapy is billed, and whether the therapy is deemed “medically necessary” for your diagnosis of hypogonadism.
1. How Medicare typically treats testosterone therapy
| Medicare Component |
What’s Covered |
Typical Cost to You |
Notes |
| Part A (Hospital) |
No – not relevant for outpatient injections |
— |
— |
| Part B (Medical) |
Injectable testosterone (e.g., enanthate, cypionate) if it’s medically necessary for treating confirmed hypogonadism |
80 % of the allowed amount after the Part B deductible ($504 in 2024) |
Covered under the “drug therapy” benefit. |
| Part C (Medicare Advantage) |
Usually follows Part B rules, but your MA plan may have its own formulary and prior‑auth rules |
Same as Part B, but check with your plan |
Some MA plans may cover it under their own drug benefit; check your policy. |
| Part D (Prescription Drug) |
Oral or transdermal testosterone (tablet, patch, gel) yes; injectables (enanthate, cypionate) generally no |
Depends on formulary tier; often higher tiers |
Some Part D plans do cover injectables, but it’s rare. |
Bottom line: If you’re getting injections, you’ll almost certainly be billed through Part B, not Part D.
2. What “medically necessary” means for testosterone enanthate
Medicare will only cover the drug if the prescribing physician documents that:
-
You have a clear diagnosis of male hypogonadism.
Evidence:
• At least two total testosterone lab results < 300 ng/dL (or < 350 ng/dL per some guidelines) on separate occasions.
• Symptoms such as low libido, erectile dysfunction, decreased muscle mass, or mood changes.
-
The injection is the recommended therapy.
The physician should state why an injectable form is preferred over oral or transdermal options.
-
You’re not using testosterone for non‑medically‑necessary reasons (e.g., athletic performance, “enhancement” without a medical diagnosis).
If all these are met, the drug is usually considered “medically necessary” and will be paid at the 80 % rate after your deductible.
3. Typical out‑of‑pocket costs for Part B
| Item |
Cost (2024) |
| Annual Part B deductible |
$504 |
| Copay for injections |
20 % of the allowed amount after deductible (often $25–$35 per injection, but it depends on the drug’s price). |
| Out‑of‑pocket maximum |
$7,400 per year (for Part B) |
Example: If your doctor prescribes a 100 mg vial that costs $200 and you’ve already met the deductible, you’ll pay 20 % ≈ $40 per injection.
4. How to check your coverage
| Step |
What to do |
Why |
| 1. Call your Medicare plan |
1‑800‑633‑4227 or the number on your Medicare card. |
Get the exact drug benefit, copays, and any prior‑auth requirements. |
| 2. Ask if you need prior authorization |
Some plans require a “medical necessity” letter. |
To avoid having to pay out‑of‑pocket and then get reimbursed later. |
| 3. Check your prescription drug formulary |
If you’re on a Part D plan, confirm that injections are not listed. |
If it’s listed, you might pay more or have a higher tier. |
| 4. Verify your prescription |
Ensure the prescription includes the diagnosis and that the drug is written for “male hypogonadism.” |
Needed for Part B billing and for Medicare to process the claim. |
5. If you’re on a Medicare Advantage plan
Medicare Advantage (Part C) plans can cover testosterone injections in two ways:
- Part B‑style coverage (most common): the same 80 % after deductible.
- Part D‑style coverage (rare): the plan may treat injections as part of its drug benefit.
Ask your MA plan about:
- The drug’s formulary status – is enanthate listed?
- Any prior‑auth or step‑therapy rules – you may need to try a first‑line therapy before injections.
- Cost‑sharing structure – copay or coinsurance amount.
6. Tips for a smooth claim
| Tip |
How it helps |
| Get lab results ready |
Having recent testosterone labs on hand speeds up prior‑auth. |
| Ask your provider to document “medically necessary” language |
Medicare relies on the doctor’s note for coverage. |
| Keep copies of all paperwork |
If a claim is denied, you’ll need docs to appeal. |
| Check your “Coverage Gap” (Donut Hole) |
While not relevant for Part B injections, it’s useful for other drug costs. |
7. Quick resources
| Resource |
What it’s for |
| Medicare.gov – Drug Coverage |
Find your plan’s formulary and cost. |
| Medicare.gov – Help |
Contact 1‑800‑633‑4227 for a representative. |
| Local Medicare Administrative Contractor (MAC) |
If you need help with claims or prior‑auth. |
| American Urological Association – Testosterone Therapy |
Clinical guidelines on dosing and monitoring. |
Bottom line
- Yes, Medicare can cover testosterone enanthate as a Part B drug when it’s medically necessary.
- No, it’s typically not covered under Part D unless your specific Part D plan has a special formulary that includes injectables.
- You’ll pay 20 % of the drug cost after the Part B deductible (if the injection is covered).
If you’re unsure about your coverage or need help navigating the paperwork, call Medicare at 1‑800‑633‑4227 or your specific plan’s customer service line. They can confirm the exact cost and whether any prior authorization is required.