COST AND INSURANCE GUIDE
What food allergy treatment costs, and what insurance covers
Visits: may be billed to insurance
Food products: may be paid directly
Always ask for a total-cost estimate first
Reviewed by Hunter Smith, MD · Last reviewed October 2026
THE SHORT VERSION
Immunotherapy office visits may be billed to insurance. You pay your deductible, copays, and coinsurance.
Oral immunotherapy may also have a cash portion for visits that are not covered by insurance and the food products used in treatment.
Sublingual immunotherapy is more likely to have a cash payment requirement for the specialized foods used in treatment because they require special preparation.
Insurance coverage does not mean that a treatment works better.
Costs vary between practices. Always ask for an estimate of the total cost before you start.
How OIT and SLIT are billed differently
1
The office visits
Food allergy immunotherapy contains two parts. The first part is what is done in a doctor's office — the general health review and counseling, allergy testing, and supervised food challenges (or dose increases). These activities have existing billing codes, so doctors may bill your insurance for them and your normal deductible and copay apply. However, not all insurance covers these visits, and not all offices are willing to bill insurance for all of the visits.
2
The food used in treatment
The second part of immunotherapy is the allergen, or food, used in treatment. For OIT, some practices ask patients to purchase specific food and measure their daily dose at home. Other practices purchase and prepare the doses for patients to ensure accuracy and reduce work for the patient. If an office is providing food for OIT, they may charge for it. Food SLIT almost always requires special preparations of the foods into liquid formats, and practices will charge patients for the products used in SLIT.
Both OIT and SLIT are practiced off-label, without FDA approval of the treatment or products used. Because neither treatment is FDA approved, insurance coverage will vary significantly between practice and insurance company, and treatment may not be covered at all.
Insurance coverage reflects how treatments are delivered, and what has been approved, not how well they work.
What people actually pay
The information below on pricing should only be used as a reference. Prices vary widely depending on the number of foods treated, practice protocols, and individual insurance company decisions. Practices that publish their fees describe a two-part structure: a charge for appointments, and a separate charge for the preparation itself.
Oral immunotherapy (OIT)
TOTAL COST
$1,000–$6,000
OFFICE VISITS
May be billed to insurance as specialist care and procedures. Codes 95076/95079 for supervised challenges; standard visit codes otherwise.
FOOD ALLERGEN PRODUCTS
Purchased directly or from the practice during the updosing phase. Patients often switch to grocery foods once they can tolerate larger amounts (i.e., 1 peanut).
WHAT TO EXPECT
Your deductible, then specialist copays — commonly $30 to $75 a visit — plus coinsurance, often 10–30% for each of the ~12 visits in the first year.
6 months to 1 year supply of the preparation.
Sublingual immunotherapy (SLIT)
TOTAL COST
$1,000–$3,000
OFFICE VISITS
May be billed to insurance as specialist care and procedures. Codes 95076/95079 for supervised challenges; standard visit codes otherwise.
FOOD ALLERGEN PRODUCTS
May be purchased directly or from the practice for the entire duration of treatment.
WHAT TO EXPECT
Your deductible, then specialist copays — commonly $30 to $75 a visit — plus coinsurance, often 10–30% for each of the ~5 visits in the first year.
Up to 3 years of supply of the preparation.
Xolair (omalizumab)
TOTAL COST
$5–$1,475/month
OFFICE VISITS
FDA-approved. May be covered with prior authorization.
FOOD ALLERGEN PRODUCTS
None
WHAT TO EXPECT
Covered under your pharmacy or medical benefit depending on the plan. Manufacturer assistance programs exist. Actual cost varies per plan.
Questions that change the number
Here are some questions to ask your doctor when considering immunotherapy.
What is the total cost for the first year, including every appointment?
What does it cost each year after that?
Which parts can you bill to my insurance, and which are paid directly?
What happens to the cost if we treat more than one food?
Is there a payment plan, and what happens if we need to pause treatment?
If a food challenge is needed, is that billed separately?
Can I use an HSA or FSA for the parts insurance does not cover?
Things worth knowing
A denial is not always final.
Some families have had visits covered after an appeal, particularly where the visit itself is a standard billable service. Ask the practice whether they help with appeals.
Treating several foods usually costs more.
Ask how the price changes for each additional food.
Cheaper is not always better.
Ask what is covered under the cost.
Do not let cost push you into doing this without medical supervision.
Measuring food protein accurately at home without guidance is genuinely dangerous, and allergy organizations advise against it.
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