The treatment-based visa for long-stay patients — 90 days extendable up to a year. Get a real, verifiable medical appointment letter from a licensed Thai hospital, embassy-ready in 24–48 hours.
The Non-Immigrant O (medical) visa is Thailand's long-stay treatment visa — months of care, rehabilitation or ongoing treatment. Its core requirement: proof of a genuine, ongoing treatment plan at a licensed Thai medical facility. The letter is that proof, and it's the step most applicants underestimate.
Confirms your condition, treatment plan and duration — the core document for the Non-O medical application at the Thai embassy.
Proof of a scheduled consultation or ongoing treatment at a licensed hospital or clinic, aligned to your application window.
Issued on the institution's letterhead with a verification code — not a template from a visa mill. Immigration checks these letters.
Anyone needing months of continuous medical care in Thailand — the Non-O medical route is built for treatment that spans seasons, not weeks:
Chronic care, post-surgical recovery, cancer follow-up and specialist treatment programmes that run 90 days or more — the Non-O medical category is the right visa.
Extended rehab, physiotherapy and health-motivated long stays — a facility letter documents the treatment arrangement that supports the visa.
Treatment continuing past the first 90 days needs immigration extensions — each cycle is backed by an updated facility letter. Many long-stay patients renew annually.
A short structured intake: your condition, planned treatment and the visa route you're targeting.
A licensed Thai hospital or clinic reviews the case and confirms the treatment plan on their letterhead.
Our QC verifies the letter against current embassy format requirements.
PDF delivered in 24–48 hours with a verification code officials can check online.
One outcome — the letter your embassy needs. The Full Visa File bundles everything into a complete application package.
⚡ Urgent? Add the $50 Rush option for 12-hour priority delivery at checkout.
The Non-Immigrant O (medical treatment) visa is Thailand's long-stay visa for foreign patients. It grants an initial 90-day stay, extendable for the duration of medically necessary treatment — typically up to a year, with extensions renewed at immigration. It is the right route for patients needing months of treatment, rehabilitation or ongoing care, and it is a different visa from the DTV (Destination Thailand Visa) medical track.
The Non-Immigrant O medical category requires proof of a genuine, ongoing treatment relationship with a licensed Thai medical facility. The letter — issued by the treating hospital or clinic — confirms your diagnosis-related treatment plan, its duration, and that your continued presence in Thailand is medically necessary. It is the core supporting document for the application and for every subsequent extension.
Your letter is issued by a licensed Thai medical facility — a hospital, clinic or licensed wellness centre registered under the Medical Facilities Act. It is signed by the attending physician on the facility's letterhead and carries a unique verification code, so embassy and immigration staff can confirm it online. We never fabricate documents.
Standard turnaround is 24–48 hours after your details are confirmed. A $50 Rush option delivers in as little as 12 hours for urgent embassy appointments.
Yes. The letter confirms ongoing treatment with follow-up care scheduled, which is what immigration reviews for extensions of stay. We can also issue updated letters for each extension cycle — many long-stay patients renew with us annually.
No. The DTV is a 5-year, multi-entry visa with 180-day stays aimed at remote workers and long-stay visitors. The Non-Immigrant O medical visa is a treatment-based visa for patients — typically 90 days extendable up to a year. If you need months of continuous medical care in Thailand, the Non-O medical route is usually the right fit; if you're a wellness-focused long-stay visitor, the DTV medical track may suit you better. Tell us your situation and we'll advise which letter you need.
Yes. Your health data is handled under PDPA/GDPR standards, used only for the letter, and never shared beyond what the document requires.