I called 47 ketamine clinics. Forty-seven. I asked three simple questions: How much does a session cost? Do you take insurance? Are there additional fees beyond the infusion itself?
You'd think those would be easy questions. They were not. About a third of the clinics wouldn't give pricing without a consultation. Several quoted one price on the phone and a different one on their intake paperwork. And the phrase "it depends" was used so liberally it should have its own billing code.
I'm a chemist. I like numbers that hold still. So I did the work to pin them down.
The Three Formats — And What Each Actually Costs
IV Ketamine Infusions
This is the format with the deepest research base. A standard protocol is six infusions over two to three weeks, administered at 0.5 mg/kg over 40-60 minutes in a clinical setting.
Per session: $400-$800. The median across my 47-clinic sample was $575.
Initial series (6 infusions): $2,400-$4,800. Some clinics offer package pricing that drops the per-session cost by 10-20%.
Maintenance boosters: Most patients need boosters every 3-8 weeks after the initial series. That's another $400-$800 per month ongoing, depending on frequency.
First-year total estimate: $5,000-$12,000.
The landmark meta-analysis in The American Journal of Psychiatry (PMID: 28493069) that established IV ketamine's efficacy for treatment-resistant depression used this exact protocol. When clinics deviate significantly — shorter infusions, lower doses, fewer sessions — they're departing from what the evidence actually studied.
Esketamine (Spravato) Nasal Spray
Spravato is the FDA-approved nasal spray containing esketamine — the S-enantiomer of ketamine. It must be administered in a REMS-certified clinic under medical observation for at least two hours.
Without insurance: $600-$900 per session. The medication itself lists at roughly $590-$885 per dose from Janssen.
With insurance: This is where Spravato has a genuine advantage. Because it's FDA-approved, many insurance plans — including Medicare Part B — cover it when standard criteria are met (typically: failed two or more antidepressants). Copays range from $10-$150 per session. Janssen also offers a savings program that can reduce copays to $10 for commercially insured patients.
Frequency: Twice weekly for weeks 1-4, then weekly for weeks 5-8, then weekly or every two weeks for maintenance. That's 16-20 sessions in the first two months alone.
First-year total estimate: $800-$6,000 with insurance. $15,000-$25,000 without.
The Phase III trial published in the New England Journal of Medicine (PMID: 30726688) demonstrated significant improvement in depression scores, but the frequency requirement and mandatory in-clinic monitoring make Spravato a significant time commitment even when cost is covered.
At-Home Oral/Sublingual Ketamine
Companies like Mindbloom, Joyous, and Nue Life prescribe ketamine via telehealth for self-administration at home. These are typically sublingual tablets or rapid-dissolve tablets.
Monthly cost: $150-$350/month, including the telehealth consultation and medication.
First-year total estimate: $1,800-$4,200.
Here's the caveat the marketing doesn't emphasize: sublingual ketamine has a bioavailability of roughly 25-30%, compared to nearly 100% for IV (PMID: 27589592). You're absorbing a fraction of the dose. That doesn't mean it's ineffective — a 2022 trial in the Journal of Clinical Psychiatry (PMID: 35045694) showed sublingual ketamine produced significant improvement in depression scores — but the pharmacokinetics are fundamentally different from what the IV research studied.
The Hidden Costs Nobody Mentions
Initial psychiatric evaluation: $200-$500. Most quality clinics require this before your first session. If they don't, that's a red flag, not a savings.
Lab work: Liver function panels, metabolic panels, sometimes urinalysis. $100-$400 depending on your insurance.
Integration therapy: Ketamine can surface intense psychological material. Psychotherapy integration sessions ($150-$300 each) are strongly recommended but rarely included in the infusion price. A 2020 study in Psychopharmacology (PMID: 31820034) found that ketamine combined with psychotherapy produced longer-lasting antidepressant effects than ketamine alone. This isn't an optional add-on — it's arguably essential.
Transportation: You cannot drive after a ketamine session. Every single time. Budget for rideshares or a designated driver for every visit.
Time off work: IV sessions take 2-3 hours including observation. Spravato requires a 2-hour monitoring period. Over a six-session initial series, that's 12-18 hours away from work minimum.
Insurance Reality Check
Let me be blunt about the insurance landscape:
IV ketamine: Almost never covered by insurance. It's used off-label (ketamine is FDA-approved as an anesthetic, not an antidepressant). Some patients have successfully appealed denials, but it's an uphill battle. A few forward-thinking plans are starting to cover it for treatment-resistant cases, but they're the exception.
Spravato: Covered by most major insurance plans including Aetna, Cigna, UnitedHealthcare, and many Blue Cross Blue Shield plans — but only after documented failure of at least two antidepressants. Prior authorization is almost always required. The approval process can take 1-3 weeks.
At-home ketamine: Not covered by insurance. Period. The telehealth companies operate on a cash-pay model.
HSA/FSA: Ketamine therapy — all formats — is generally eligible for HSA and FSA spending. This is pre-tax money. Use it.
How to Make the Math Work
If cost is the primary barrier — and for most people it is — here's the pragmatic approach:
Start by checking your insurance coverage for Spravato. If you meet the criteria (treatment-resistant depression with two failed antidepressants), this is the most affordable path with the strongest insurance support. Call your insurer directly — don't rely on the clinic to check for you.
If Spravato isn't covered or accessible, consider starting with a short IV series (3-4 infusions) to assess your response before committing to the full six. Some clinics offer a "trial series" at reduced cost. If you respond well, transition to at-home sublingual maintenance — the per-month cost is dramatically lower than ongoing IV boosters.
Ask about sliding scale pricing. I found that 8 of my 47 clinics offered income-based pricing. They don't advertise it. You have to ask.
At BestDosage, we display pricing information for every ketamine clinic in our directory — including whether they accept insurance, offer package deals, and provide sliding-scale options. Because the worst time to learn what something costs is after you've already started treatment.
Browse ketamine clinics near you →
I'm Chad. Your chemist.