SNUH vs Samsung vs Asan vs Severance: Which Seoul Hospital for an Executive Checkup?
Photo: Unsplash / Red Shuheart
If you've spent an evening comparing Asan, Samsung, Severance, and Seoul National University Hospital for a checkup, you already know the problem: every one of them has a slick English page, every one calls itself the best, and none of them tells you what's actually different for someone flying in from abroad. I'm Won Seok — I run Kuratio, and I book these checkups for international clients most weeks. Here's how I actually tell them apart, and the one decision that matters before you pick a name.
Pick your tier before you pick a name
The first fork isn't Asan vs. Samsung. It's tertiary hospital vs. checkup specialist.
Korea's "Big Five" — Samsung Medical Center, Asan Medical Center, Seoul National University Hospital (SNUH), Severance, and Seoul St. Mary's — are full tertiary hospitals. If your screening turns something up, you're already inside a building that can biopsy it, scan deeper, or get you in front of a specialist the same week. Asan alone runs about 2,700 beds — it's the largest hospital in the country.
A checkup specialist like KMI (Korea Medical Institute, around since 1985, eight centers nationwide) does one thing: screening, fast and cheap. Their standard panel runs about 72 tests for roughly 500,000 won — one reviewer reported a full-body for around $350. But if they find something, they refer you out. You don't have the hospital behind you in the same building.
Neither is "better." If you're 38 and want a clean baseline, a checkup center is efficient and honest, and you shouldn't pay tertiary-hospital prices for a panel a specialist does just as well. If you're 55, have a family history, or want the security of escalation under one roof, pay for the big hospital. Decide that first; the brand argument comes second.
What each of the big hospitals is actually known for
Asan Medical Center (Songpa)
The biggest machine. Its Health Screening and Promotion Center opened in 1990 and sees about 40,000 people a year, with an International Healthcare Center on the 4th floor of the New Building and English-speaking coordinators. Newsweek ranked Asan 22nd in the world, and it's especially strong in oncology, cardiology, and endocrinology. High volume, very systematized — you're one of many, but the conveyor belt is precise. Note it sits out east in Songpa, near Olympic Park, not in Gangnam.
Samsung Medical Center (Irwon, Gangnam)
Founded in 1994, the youngest of the Big Five, with roughly 2,000 beds in Irwon-dong, southern Gangnam-gu. Its reputation is for service design — a smoother, more comfortable outpatient experience than the older flagships. If the building and the handling matter to you and you're already staying in Gangnam, it's an easy pick.
SNUH and its Gangnam Center
The main SNUH hospital is up in Jongno, in the old center of Seoul — the national flagship, the one Korean presidents use. But for a checkup, the building you want is the Healthcare System Gangnam Center, a screening-focused center in Gangnam. It sees over 3,000 overseas patients a year, built checkup programs specifically for foreigners, and publishes some of the country's highest cancer-detection rates. This is my default for an executive checkup that's foreigner-ready from the front door.
Severance (Sinchon)
Yonsei's hospital, up in Sinchon in the northwest. Its International Health Care Center opened in 1962 — the first international clinic in Korea — so the English-language muscle here is the deepest and most institutional. If "will anyone actually speak English to me" is your top worry, this is the safe answer. They also run Gangnam Severance south of the river if location is the deciding factor.
Yes, the foreigner price shows up here too
People assume the big hospitals are immune to the "foreigner price" the aesthetic clinics are known for. At a Big Five checkup center that's mostly true — these are institutional, list-priced packages, not a number invented per walk-in. Asan's executive packages, for example, run roughly $1,300 to $6,400 depending on how much imaging you bolt on.
The markup risk isn't the hospital. It's the agency in between. Plenty of medical-travel agencies take a commission from the hospital or pad the package and never itemize it, so you can't see what you're paying for. That's the part I'd interrogate. Ask for the line items: the base package, each add-on, and the agency's own fee, stated separately. If nobody will break it down, that's your answer about whether it's a fair price.
What actually matters once you're a foreigner in the building
Beyond the name on the door, here's what changes your day:
- English from the front desk to the results — not just one coordinator. Ask how many points in the day are translated. A single bilingual handler who's pulled to another patient is a long morning.
- A results report in English you can hand your doctor at home. Severance, SNUH Gangnam, and KMI all do multilingual reports and email delivery. Confirm it before you book — an untranslated PDF is useless to your physician.
- Same-day vs. spread over two. The good executive packages run endoscopy, imaging, and bloods in one morning. Ask whether yours fits in a single visit or needs two.
- The no-fly window. If your package includes a colonoscopy with sedation or any biopsy, don't book a flight out the next morning. Leave a buffer day.
- Lead time. Peak season — Korean year-end and the spring window — books out. The good slots go weeks ahead, so lock the date before the flight.
How I'd choose, honestly
- Clean baseline, cost-conscious, under about 45: KMI Gwanghwamun or Gangnam. A few hundred dollars gets you a real panel without paying for a hospital you won't use.
- Family history, or you want escalation under one roof: a Big Five. Asan if you want the biggest oncology and cardiology backbone; SNUH's Gangnam Center if you want a checkup-first building with the deepest foreigner programs.
- English is your main anxiety: Severance.
- Combining the checkup with aesthetic or skin work in the same trip: this is where I split clinics on purpose — a tertiary hospital for the screening, a separate vetted boutique for the skin or surgery. One building rarely does both well, and bundling them through a single agency is how you quietly overpay for both. I'd rather send you to the right tier for each.
Talk to Kuratio: tell us what you're considering on WhatsApp and we'll come back with vetted clinic options and an itemized quote — no markup, no commission.
Kuratio is not a medical provider. All clinical decisions are made by the treating physician at the partner clinic. This guide is general information, not medical advice.