How much does a bone marrow transplant cost?

A stem cell transplant, often called a bone marrow transplant, is a complicated and very expensive treatment. The US National Cancer Institute (NCI) says it needs long hospital stays at special treatment centers and care from many health workers.

The cost builds in stages. NCI says treatment begins with conditioning: high doses of chemotherapy and maybe radiation therapy. For a donor transplant, the donor’s cells must be collected and delivered. Then come the hospital stay, medicines and months of close follow-up.

Complications add more. NCI notes that transplants can cause serious side effects that can be expensive to manage. One example is graft-versus-host disease, when white blood cells from the donor see the patient’s body as foreign and attack it.

Milliman, an actuarial firm that studies health costs, estimates average US billed charges for 2025. Its figures run from 30 days before the transplant hospital stay to 180 days after going home. They include the patient’s other medical care in that window, not only care for the transplant.

Even when a plan pays for the transplant, it might not cover everything. NMDP, the US donor registry, lists costs families often pay on their own: copays for medicines and doctor visits, travel to and from the transplant center, and temporary housing near it.

Distance matters. A donor transplant is done at a hospital with a specialized transplant center. NCI says people who do not live nearby stay in a hotel or apartment when they are not in the hospital. If there are no problems, they can go home 100 days after receiving the donor cells.

Care continues after discharge. NCI says people visit the hospital two or three times a week after leaving it. NMDP notes that most people take many different medicines after transplant, and how much insurance covers can vary widely.

Income can drop, too. NMDP says families may need to plan on one income for a while, because the patient may not return to work as quickly as they would like. Travel for treatment can also bring extra costs for transportation, housing and childcare, NCI says.

NMDP, which runs the US registry, says donors are never asked to pay to donate. Donors are not paid for donating, either.

NMDP says it covers all of a donor’s costs related to donation. That includes medical costs, the donation itself, travel, hotel and meals for the donor and a companion, childcare, pet care and lost wages.

On the patient’s side, finding and collecting donor cells is part of the transplant’s cost. NMDP says the cost of searching its registry depends on things like the patient’s health insurance and how many possible donors need to be tested. Milliman’s estimate includes a separate amount for obtaining the donated cells.

The Jada Bascom Foundation explains donation and points people to official registries. It does not pay for medical care, search for donors or collect cells.

Private insurance. NCI says most insurance plans cover some of the costs of transplants for certain types of cancer, and NMDP adds that every plan is different. BMT InfoNet, a transplant patient nonprofit, says the transplant center’s financial coordinator, not the patient, asks the insurer to approve the transplant in advance. This step is called pre-authorization or prior authorization.

BMT InfoNet also says many insurers have a network of approved transplant programs, sometimes called Centers of Excellence, and usually require members to be treated at one of them. If a plan denies coverage, it may be possible to appeal, and appeals usually have deadlines. The transplant team may file the appeal or help you do it.

Medicare. Medicare’s national coverage rule for stem cell transplants covers donor (allogeneic) transplants for leukemia, aplastic anemia, severe combined immunodeficiency (SCID), Wiskott-Aldrich syndrome and certain higher-risk myelodysplastic syndromes. For some people with multiple myeloma, myelofibrosis or severe sickle cell disease, it covers donor transplants only within approved clinical studies. Regional Medicare contractors decide uses the rule does not list.

Medicaid. Each state runs its own Medicaid program and decides the type, amount, duration and scope of services within federal rules. That means what Medicaid covers for a transplant can differ from state to state. NMDP says the transplant center’s financial coordinator can help explain what insurance will pay.

The transplant center. BMT InfoNet says most centers have a financial coordinator who works with you and your insurance company. NCI says the center’s business office can help you understand all the costs involved. NMDP says the center team, usually a social worker, can help check grant eligibility and apply for you.

NMDP Patient Support Center. Its patient navigators help families understand expected costs and find planning tools and financial help, at no cost. Call or text 1-888-999-6743 or email patientinfo@nmdp.org. NMDP’s pre-transplant and post-transplant grants are for people whose donor is not related to them. To qualify for NMDP grants, household income typically must be below 350% of the US federal poverty level.

Other nonprofits. Blood Cancer United’s Co-Pay Assistance Program helps people with blood cancers pay insurance premiums, copays, deductibles and coinsurance for treatment, and award levels vary by diagnosis fund. On September 24, 2026, 12 of its 15 funds were full and not enrolling new patients, and fund status changes over time. NCI’s Cancer Information Service (1-800-4-CANCER) can point you to other groups that may help.

Clinical trials and fundraising. BMT InfoNet says a trial’s sponsor usually pays for the research part of care, while standard care is billed to the patient or their insurer. If you fundraise, NMDP suggests learning the rules first, because fundraising can affect taxes, Medicaid or Social Security benefits.