Specialty

내과 are general clinics for adults, run by internal medicine specialists. They treat infections, stomach and bowel problems, high blood pressure, diabetes and thyroid disease, and many perform gastroscopy and colonoscopy in-house. In Gangnam, many internal medicine clinics also offer health check packages and vitamin IVs.

You can walk in without an appointment. Blood test results for common panels are often ready the next day. Endoscopy needs fasting from the night before, and colonoscopy needs a bowel prep drink, so book at least a day ahead and ask for the prep instructions in English.

NHIS covers most internal medicine care for insured patients, including endoscopy when there are symptoms. Sedation for endoscopy and vitamin IVs are non-covered. Visitors pay the full fee, which for a simple visit and prescription is usually modest.

What to expect

Bring your passport and a list of current medicines.
Walk-ins are normal. Arrive early for fasting blood tests.
Sedated endoscopy needs someone to accompany you, or you should not drive for the rest of the day.
English varies. Bring medicine names and past results in writing.
Payment is at the desk. Prescriptions are filled at a pharmacy nearby.

Tips for international patients

For gastroscopy, do not eat after 9 pm the night before and skip breakfast.
Ask for blood results by email in English if you need them for a doctor at home.
If you feel unwell with a fever, call before visiting; some clinics have separate entrances for infections.

Last reviewed October 2026. General information only, not medical advice. A doctor confirms what suits you at consultation.

Internal Medicine treatments

Gastroscopy and Colonoscopy: Sedated camera checks of the stomach and colon, often done the same morning. Polyps can be removed during the colonoscopy.
Comprehensive Health Checkup: Half-day screening packages with blood tests, ultrasound, CT or MRI, and sedated endoscopy, with a doctor consultation and an English report.
Nutrient IV Therapy: Vitamin and mineral drips such as garlic (fursultiamine), Cinderella (thioctic acid) and glutathione. 20 to 60 minutes; benefits for healthy people are limited.

Internal Medicine clinics near Apgujeong

Sinsa Uri Best Internal Medicine Clinic (신사우리베스트내과의원)
Internal Medicine, 6 min walk from Sinsa Station
Cheongdam Best Internal Medicine Clinic (청담베스트내과의원)
Internal Medicine, 2 min walk from Gangnam-gu Office Station
Kim Seongyun Internal Medicine Clinic (김성윤내과의원)
Internal Medicine, 2 min walk from Apgujeong Station

Internal Medicine in Korea: questions

How long does a sedated gastroscopy take?

The procedure takes 5 to 10 minutes. With sedation and recovery, plan 1 to 2 hours at the clinic.

Can I get a blood test without seeing the doctor first?

You will usually see the doctor briefly to order the right tests. Many clinics do this within the same visit.

Can a Korean doctor refill my blood pressure medicine?

Yes, if the same or similar medicine is sold in Korea. Bring your current packaging or prescription.

When are results ready for a full blood panel?

Common tests come back the next day. Some specialized tests take 3 to 7 days.

Do I need to fast before an ultrasound of the abdomen?

Yes, usually 6 to 8 hours so the gallbladder and pancreas are clearly visible.

Can I get vaccines at an internal medicine clinic?

Most clinics give flu, hepatitis A and B, tetanus and shingles vaccines. Call ahead because stock varies by season.

Questions before you visit?

Specialty · 내과

Internal Medicine Clinics in Apgujeong

At a glance