So every agency in South Korea is illegal?

No, and it would be wrong to read it that way. The general prohibition in the Medical Service Act has exceptions, and South Korea created a separate registration scheme specifically so that foreign-patient attraction could be done lawfully. The distinction that matters is whether the intermediary is registered under that scheme.

How do I tell a registered agency from an unregistered one?

Agencies register in their own category under the foreign-patient scheme, alongside clinics. Ask for the registration and check it against the published register, the same way you would check the clinic itself.

Why does this site have no booking links or clinic rankings?

Partly because of this law, and partly because of what it implies. A publisher paid per referral has an interest in where you go, and there is no way to disclose that interest strongly enough to remove it. We would rather be citable than be an intermediary.

A platform offered me a discount for booking through them. Is that a problem?

The Act's prohibition names exempting or discounting medical expenses as an example of the kind of inducement it covers. That does not make every discount unlawful, but it does mean a discount offered by an intermediary for routing you to a particular clinic is exactly the arrangement the provision is aimed at. Ask who is funding it.

Where can I read the law myself?

The Korean government publishes an official English translation of the Medical Service Act. It is linked in the sources below, so you can read Article 27 rather than anyone's summary of it, this page included.

Official Resources · also called 의료법, Medical Service Act (South Korea)

What Korean law says about brokers, referral fees and clinic ads

South Korea's Medical Service Act bars introducing, referring or soliciting patients for profit. What that means for agencies offering to book your treatment.

Author: Aesthetics Korea Editorial Team
Medical review: Not required
Published: 8 September 2026
Last updated: 8 September 2026
Last reviewed: —5 min read

Short answer

South Korea's Medical Service Act contains a general prohibition: no one may introduce, refer or solicit a patient to a medical institution or medical personnel for profit. The Act provides limited exceptions, and attracting foreign patients is separately regulated by its own statute, which is why registered agencies exist at all. The practical consequence for a patient is that an unregistered intermediary taking a cut of your treatment fee is not operating in a grey area.

Key facts

Statute: Medical Service Act (의료법)
Core prohibition: Article 27(3) — no introducing, referring or soliciting patients for profit
Exceptions: The Act provides limited exceptions; foreign-patient attraction is separately regulated
Foreign-patient route: Agencies must register under the Act on Support for Overseas Expansion of Healthcare System and Attraction of Foreign Patients
Official English text: The Korean government publishes an official English translation of the Act
Why it matters to you: A referral fee has to come from somewhere, and it comes out of your treatment price

What the rule is

South Korea's Medical Service Act contains a provision that shapes the whole market a foreign patient walks into, and almost no English-language guide mentions it. Article 27(3), in the government's own English translation, begins:

No one may introduce, make a referral of or solicit a patient to a medical institution or medical personnel for profits, such as exempting or discounting medical expenses...

The article then sets out limited exceptions.

Read plainly, this is a prohibition on the referral-fee business model as a default. It is not a rule about advertising standards or disclosure. It addresses the act of steering a patient to a particular doctor or clinic for gain — and it names discounting the patient's medical expenses as an example of the inducement it has in mind, which is worth remembering the next time a platform offers you money off for booking through it.

Who it applies to, and the exception that matters

"No one" is broad, and it is meant to be. But South Korea plainly does permit agencies to bring international patients to Korean clinics: there is a registration scheme for exactly that, and thousands of registered inducement businesses operating under it.

The two facts fit together. The general prohibition sits in the Medical Service Act; foreign-patient attraction is separately regulated under the Act on Support for Overseas Expansion of Healthcare System and Attraction of Foreign Patients, which requires agencies to register in their own category. Registration is what brings an intermediary inside the lawful route.

So the question to ask about an agency is not whether agencies are allowed. It is whether this agency is registered.

How to check it yourself

Read the provision. The Korean government publishes an official English translation of the Medical Service Act. Read Article 27 rather than a summary — including this one.
Check the agency's registration. Registered inducement businesses appear in the same published system as registered clinics. Ask the agency for its registration and search the register for it.
Ask who pays whom. A straightforward question — "does the clinic pay you a commission, and is it a percentage of what I pay?" — is not rude, and the answer tells you what you are dealing with. Money paid to an intermediary is not conjured from nowhere. It comes out of the price you are quoted, or out of what the clinic can afford to spend on your care.

What this does not settle

This page is about the referral relationship, not about medical advertising, which the Act also regulates. We have not reproduced those provisions here because we have not yet read the advertising articles in the official English text, and we do not paraphrase statutes we have not read. That section will be added when it is sourced properly.

Nor does any of this tell you whether a registered agency is a good one. Registration means it is operating inside the scheme. It is not a quality assessment, and it does not mean the clinic at the other end of the introduction is the right clinic for you.

Why this site works the way it does

It is worth saying plainly, because it explains an absence readers may notice. This site carries no booking links, no clinic recommendations, and no referral arrangements. Part of the reason is the law above. The larger part is that we cannot be a useful reference and a paid intermediary at the same time. Any disclosure we could write would be weaker than the incentive it disclosed.

Where a page ever carries paid placement, it will be labelled as such on the page itself. That is the whole of our commercial model, and it is why we can tell you to ask an agency who pays it.

The bottom line

South Korea's Medical Service Act prohibits introducing, referring or soliciting patients for profit, naming discounted medical fees as an example of the inducement it covers, with limited exceptions. Agencies bringing foreign patients to South Korea operate lawfully by registering under the separate foreign-patient statute — so check that an intermediary is registered, and ask directly whether it takes a commission on what you pay.

Frequently asked questions

So every agency in South Korea is illegal?: No, and it would be wrong to read it that way. The general prohibition in the Medical Service Act has exceptions, and South Korea created a separate registration scheme specifically so that foreign-patient attraction could be done lawfully. The distinction that matters is whether the intermediary is registered under that scheme.
How do I tell a registered agency from an unregistered one?: Agencies register in their own category under the foreign-patient scheme, alongside clinics. Ask for the registration and check it against the published register, the same way you would check the clinic itself.
Why does this site have no booking links or clinic rankings?: Partly because of this law, and partly because of what it implies. A publisher paid per referral has an interest in where you go, and there is no way to disclose that interest strongly enough to remove it. We would rather be citable than be an intermediary.
A platform offered me a discount for booking through them. Is that a problem?: The Act's prohibition names exempting or discounting medical expenses as an example of the kind of inducement it covers. That does not make every discount unlawful, but it does mean a discount offered by an intermediary for routing you to a particular clinic is exactly the arrangement the provision is aimed at. Ask who is funding it.
Where can I read the law myself?: The Korean government publishes an official English translation of the Medical Service Act. It is linked in the sources below, so you can read Article 27 rather than anyone's summary of it, this page included.

Sources

Listed in the order they are used. Source class follows the methodology.

1.Medical Service Act — official English translation, Korea Legislation Research InstituteGovernment / public bodyaccessed 2026-09-08Article 27(3) as displayed reads "No one may introduce, make a referral of or solicit a patient to a medical institution or medical personnel for profits, such as exempting or discounting medical expenses...", followed by limited exceptions.
2.MEDICAL SERVICE ACT (English, National Law Information Center), Korea Ministry of Government LegislationGovernment / public bodyaccessed 2026-09-08Official English text of the Act as promulgated 31 October 2023.
3.Registration System for foreign patient attraction institutions, Medical Korea (Korea Health Industry Development Institute)Government / public bodyaccessed 2026-09-08Registration covers inducement businesses as well as medical institutions, and the programme is published under the banner "TRANSPARENT HEALTH SYSTEM WITH NO ILLEGAL BROKERS."
4.외국인환자유치 정보시스템 (Foreign Patient Attraction Information System), Korea Health Industry Development InstituteGovernment / public bodyaccessed 2026-09-08Where registered agencies, as well as clinics, are published.