Last updated: October 10, 2026. Medical treatment is an express B-2 purpose under United States visitor visa rules, and it is one of the few visitor categories where the consular officer asks for a specific clinical file rather than a general travel plan. The State Department wants three things: a diagnosis from a local physician, a letter from a US doctor or hospital confirming they will treat you and stating the projected length and cost of that treatment, and proof that the transportation, medical and living expenses will be paid. This guide works through each of those documents, who may travel with you, how insurance and prepayment actually work in the US system, how to extend your stay if care runs longer than planned, and where applications fail. Pair it with the B1/B2 visitor guide for the shared interview process and our medical examination guide if your case also involves an immigrant visa.

Quick answer — a B-2 for medical treatment: apply with three core documents: a local physician's diagnosis, a US facility letter confirming willingness to treat you with the projected length and cost of care, and proof that transport, medical and living costs will be paid. The fee is $185. Anyone accompanying you needs their own B-2. If care runs past your admission, file Form I-539 at least 45 days before your I-94 expires. Budget the estimate first with the visa fee calculator.

What the B-2 Medical Category Covers

Medical treatment sits on the published list of B-2 activities alongside tourism, visiting friends and relatives, social events hosted by fraternal or service organizations, unpaid amateur participation in musical or sporting contests, and short recreational courses taken without credit toward a degree. In practice most applicants receive a combined B-1/B-2 foil, and the officer records the medical purpose at the point of entry.

The legal test is narrower than the marketing suggests. Under the Foreign Affairs Manual the consular officer must be satisfied of two things before issuing on medical grounds. First, a medical practitioner in the United States has agreed to treat you for the specific ailment. Second, you have the means, derived from lawful sources, and the intent to pay for the treatment and every incidental expense, including transportation, living costs, doctors' fees and hospitalisation. A diagnosis alone does not satisfy either limb; a hospital appointment without a funding plan satisfies neither.

What the B-2 does not do is let you work while you are here, let a relative take employment as your carer, or convert a long treatment programme into residence. It also does not make US hospitals cheaper or obligate any facility to treat you for free. The visa answers one question only: whether you may enter to receive the care you have arranged.

The Three Required Documents

Travel and the Foreign Affairs Manual describe the same three items, and posts apply them consistently. Treat them as the spine of the application rather than a suggestion.

DocumentWho writes itWhat it must say
Medical diagnosisA local physician in your home countryThe nature of the ailment and the reason treatment is needed in the United States
US treatment letterThe US physician or medical facilityWillingness to treat your specific ailment, plus the projected length and cost of treatment covering doctors' fees, hospitalisation and all medical-related expenses
Proof of paymentYou, your sponsor, or the organisation payingBank or other statements of income and savings, or certified copies of income tax returns, for the person or body covering the costs
DS-160 confirmationYouCompleted online application with the uploaded photo and printed confirmation page
Passport and fee receiptYouValid for at least six months beyond the period of stay, plus the $185 MRV receipt

Order matters more than applicants expect. A US hospital will normally not issue an acceptance letter before it has reviewed the records, so start by sending the local diagnosis, imaging and history to the facility and get the appointment window and written estimate back. Only then complete DS-160, because the proposed dates and the cost figure you put in the file need to match the letter the officer will read. Obtain the diagnosis letter from a physician who actually examined you; officers recognise a template, and a letter that never names the condition tells them nothing.

Supporting Evidence That Strengthens the File

The three mandatory documents decide eligibility; the rest of the file decides credibility. Useful additions include the appointment confirmation with named doctors and dates, a treatment schedule showing how many visits or how long you will be inpatient, previous imaging and test results, correspondence with the hospital's international patient office, and a written plan for follow-up care after you return home. If the recommended treatment is not available locally, a short note from the local physician saying so is worth more than a long argument in your own covering letter.

On the ties side, bring the evidence that pulls you back: employment confirmation with a return date, business ownership documents, property, school enrolment for dependants, and a return ticket. This is the ordinary INA 214(b) analysis, and medical cases are not exempt from it. An applicant whose entire life appears to relocate to the United States with the treatment will be refused even where the clinical file is perfect. See US visa interview questions and answers for the exact wording officers use, and check current interview wait times because treatment dates wait for nobody.

Family Members and Attendants Who Accompany You

There is no special companion visa. Anyone who travels with you — a spouse, an adult child, a parent, or a private carer — applies for their own B-2 and pays their own $185 fee, with their own DS-160 and their own interview. Major institutions state this explicitly: the NIH Clinical Center, for example, requires a B-2 for international patients and for their caregivers. Each application still has to show ties and funding independently, so a companion with no job, no property and no clear return plan can be refused even when the patient is approved.

Two practical points follow. First, apply together and reference each other's case numbers so the officer can see one coherent family plan. Second, be precise about what the companion will do. A family member providing emotional support fits comfortably inside B-2. A paid nurse providing clinical care in the United States does not, because that is work; professional nursing arrangements belong to a different analysis entirely. If the companion needs to keep their own job during the trip, mention it, because a US employer paying them for hours worked in the United States is the classic violation.

Children need their own applications regardless of age, and any dependant who is already in the United States in another status must check whether change of status or extension is the right route instead of a new visa — see change of status requirements.

Costs, Insurance and Prepayment

Two separate money questions get confused constantly. The first is the visa fee: $185 per applicant, non-refundable, paid as the MRV application processing fee. That figure is identical for a routine B-2 tourist and a medical applicant.

The second is the treatment bill, and here the document requirement is not "show that you have savings" but "show that the transportation, medical and living expenses in the United States will be paid". Accepted evidence is bank or other statements of income and savings, or certified copies of income tax returns, from whoever is paying — you, a family sponsor, an employer, or a charity or government programme in your country. If a third party is funding you, bring that party's own financial evidence and a letter confirming the commitment, because your bank balance is irrelevant if they are the ones paying.

On insurance, be clear about what the rules say. Neither travel.state.gov nor USCIS requires applicants to hold travel medical insurance as a condition of a B-2, and you will not be asked for a policy at the interview as a matter of law. What is true in practice is that most US hospitals ask international patients for a deposit, a prepayment, or documentary proof of funding before scheduling a procedure, and US domestic health plans generally do not cover routine care received outside their network. A policy that includes medical evacuation and repatriation is sensible risk management even though it is not a legal prerequisite. Whatever you choose, reconcile the insurance wording with the hospital estimate before you travel, so the number in your financial evidence is the number the facility will actually charge.

Timeline From Diagnosis to Treatment

Medical applications fail on sequencing more than on substance. The reliable order runs like this. Get the diagnosis and imaging at home. Approach the US facility's international patient office and obtain written acceptance, an appointment window and a cost estimate. Line up the funding and obtain the sponsor's financial evidence. Confirm your passport is valid for at least six months beyond your intended stay. Complete DS-160, upload the photo, pay the $185 MRV fee and book the interview. Attend with the file in the order the officer will read it: invitation and acceptance letter, treatment plan and estimate, funding evidence, ties, travel arrangements.

Leave slack. Interview availability at some posts runs to weeks or months and moves monthly, and a facility that quoted you a March slot will not hold it while a July appointment clears. Ask the hospital to give you a realistic scheduling window rather than a fixed date, and avoid booking non-refundable flights before the visa issues. If treatment is urgent, say so at booking and bring the physician's note explaining the urgency; posts do accommodate genuine medical emergencies even though they do not advertise a guaranteed fast track. Our visa timeline calculator maps the steps backwards from your treatment date, and the document checklist keeps the file complete.

Extending Your Stay for Ongoing Treatment

Treatment rarely finishes exactly when the I-94 says it should. A B-2 visitor may apply to extend stay on Form I-539, but the application has to be filed while the current admission is still valid. USCIS advises filing at least 45 days before the authorised stay expires and generally no more than six months before it expires, so the working window is between roughly four and six months ahead of the expiry date. Filing late is only excusable for extraordinary circumstances beyond your control that you could not have planned around.

The package mirrors the original application: the original Form I-94 for each person extending, a written statement explaining the reason for the request, why the longer stay remains temporary and what arrangements you have made to depart, any effect on your foreign employment or residence, and how you will financially support yourself. For a medical case the strongest single attachment is an updated letter from the treating facility showing the remaining treatment phase and a revised completion date — not a general assertion that you are still unwell.

Two cautions. USCIS states plainly that there are no appeal rights for a refused B-2 extension, so an incomplete filing cannot be corrected afterwards. And visitors admitted under the Visa Waiver Program are limited to a stay of no more than 90 days and cannot normally extend or change that admission, which is the main reason a patient expecting anything beyond a short, predictable procedure should apply for a B-2 in the first place.

Common Mistakes and Refusals

The recurring failures are predictable. The US letter names the hospital but does not state the projected length or cost, which is the exact wording the rule demands. The diagnosis letter describes symptoms without a diagnosis. The funding evidence belongs to the patient while the payer is a relative, so the two never connect. An itinerary shows a three-month stay for a four-week procedure with no explanation of what happens in the other eight weeks. The companion's application is refused because their ties were never documented. And applicants treat the invitation as a formality, arriving without the printed appointment confirmation when the officer asks for it.

Refusals arrive under INA 214(b) where the ties or the funding were not convincing, or under INA 221(g) where a document was missing or inconsistent. The second is fixable by supplying what was asked for. The first needs genuinely new evidence — a clearer treatment schedule, a stronger sponsor, tighter travel dates — not the same file re-presented. Before reapplying, confirm the category is right with visa eligibility checking, and keep the treatment file in the order your first draft used.

Frequently Asked Questions

Do I need a B-2 visa to receive medical treatment in the United States?
Yes, unless you are entering under the Visa Waiver Program. Medical treatment is an express B-2 purpose, and posts commonly issue a combined B-1/B-2 foil so the same visa covers a later tourist trip. A visa is not a guarantee of entry: the Customs and Border Protection officer at the port of entry decides how long you may stay based on the treatment you have arranged.
What documents are required for a B-2 medical treatment visa?
The State Department asks for three core items: a medical diagnosis from a local physician explaining the nature of the ailment and why treatment is needed in the United States; a letter from a US physician or medical facility confirming willingness to treat you and detailing the projected length and cost of treatment including doctors' fees, hospitalisation and all medical-related expenses; and evidence that transportation, medical and living expenses will be paid, such as bank statements or certified tax returns for whoever is funding you.
How much money do I need to show for a medical treatment visa?
There is no published minimum. The requirement is that you satisfy the officer you have the means, from lawful sources, and the intent to pay for the treatment and every incidental expense including transportation, living costs, doctors' fees and hospitalisation. In practice the hospital's own written cost estimate sets the target, and you match it with bank or income statements, or certified income tax returns, from the person or organisation actually paying.
Can a family member travel with me to the United States for treatment?
Yes, and they apply for their own B-2 with their own DS-160 and their own $185 fee. There is no companion visa. Major centres such as the NIH Clinical Center require a B-2 for caregivers as well as patients. The accompanying person must show their own ties and funding, and must not perform paid work in the United States, including paid nursing care, while in B-2 status.
Is health insurance mandatory for a B-2 medical treatment visa?
No. Neither travel.state.gov nor USCIS makes insurance a legal condition of the B-2, and you will not be refused solely for lacking a policy. In practice most US hospitals ask international patients for a deposit, prepayment or proof of funding before scheduling treatment, and US domestic plans generally do not cover routine care abroad. Cover that includes medical evacuation and repatriation is sensible risk management even though it is not required.
Can I extend my B-2 stay if treatment takes longer than expected?
File Form I-539 while your current admission is still valid. USCIS advises filing at least 45 days before your I-94 expires and generally no more than six months beforehand. Include the original Form I-94 and a written statement covering why you need more time, why the stay remains temporary and how you will depart, the effect on your foreign employment or residence, and how you will support yourself. Attach a updated letter from the treating facility showing the remaining treatment and revised completion date. There are no appeal rights if the extension is refused.
Can I use the Visa Waiver Program instead of a B-2 for medical treatment?
Short, well-defined treatment can sometimes be done under the Visa Waiver Program, which permits a stay of no more than 90 days for business or pleasure. The practical restriction is that a Visa Waiver admission cannot normally be extended or changed to another status. If there is any chance the treatment runs long or the schedule will move, apply for a B-2 so that Form I-539 remains available to you.
Why do medical treatment visa applications get refused?
Most refusals come from one of three gaps. The US facility letter omits the projected length or the cost of treatment, which the rule requires in terms. The funding evidence does not match the person who is actually paying. Or the ties analysis under INA 214(b) fails because the whole plan looks like a permanent move rather than a temporary stay. A missing document usually produces an INA 221(g) refusal instead, which is resolved by supplying what was requested.

How We Fact-Check This Page

✓ Last fact-checked: October 10, 2026. Document list and funding standard from travel.state.gov Visitor Visa, Travel for Medical Treatment, and 9 FAM 402.2-6(B); B-2 activity list from travel.state.gov Tourism and Visit guidance; $185 MRV fee from the State Department Schedule of Fees for Consular Services, item 21(a); extension procedure and timing from USCIS Form I-539 instructions and USCIS Form M-752 filing tips; caregiver B-2 requirement from the NIH Clinical Center patient visa guidance; Visa Waiver Program 90-day limit from INA 217. About the author on our about page.

Legal disclaimer: VisaGrade publishes educational information only. US visa fees, wait times, interview rules, and admission decisions change frequently and vary by nationality and post. Nothing here is legal advice or a guarantee of issuance, timing, or length of stay — always confirm current figures on travel.state.gov and, where the stakes warrant it, a licensed attorney. VisaGrade is not responsible for decisions, delays, or costs arising from reliance on this page.