Gyeongseok Choi
Dr. Gyeongseok Choi is a Director and board-certified Internal Medicine Specialist & Gastrointestinal Endoscopy Subspecialist (M.D., Ph.D.) at Gangnam Heartscan Healthcare Center, and Outpatient Professor at Hanyang University College of Medicine.
Gangnam Heartscan Healthcare Center · Specialist Physician Profile · Gangnam-gu, Seoul
1:1 Consultation →
Clinical Role & Specialty
- Position: Director, Gangnam Heartscan Healthcare Center
- Specialty: Internal Medicine Specialist & Gastrointestinal Endoscopy Subspecialist (M.D., Ph.D.)
- Clinical Department: Performs sedated upper and lower GI endoscopy, abdominal ultrasound correlation, and digestive health screening within Digestive Health Screening & Gastroenterology.
Education & Professional Background
- M.D., Hanyang University College of Medicine
- Ph.D. in Medicine, Hanyang University Graduate School of Medicine
- Outpatient Professor, Hanyang University College of Medicine
- Board-Certified Specialist in Internal Medicine
- Board-Certified Subspecialist in Gastrointestinal Endoscopy
- Lifetime Member, Korean Society of Gastrointestinal Endoscopy (KSGE)
- Lifetime Member, Korean Society of Clinical Ultrasound
Clinical Practice & Examination Summary Table
| Parameter / Examination | Clinical Purpose | Preparation / Protocol |
|---|---|---|
| Sedated & Non-Sedated Gastroscopy | High-definition screening of esophageal, gastric, and duodenal mucosa with biopsy | Fasting from food and water for at least 8 hours prior to procedure |
| Colonoscopy & Polypectomy | Full colonic mucosal inspection and removal of precancerous adenomatous polyps | 3-day low-residue diet and prescribed bowel-cleansing protocol |
| Clinical Ultrasound & GI Evaluation | Integrated evaluation of hepatobiliary ultrasound findings and digestive symptoms | 8-hour fasting to optimize gallbladder and upper GI visualization |
Areas of Clinical Focus
- Gastroscopy (Upper Endoscopy) and Colonoscopy
- Endoscopic Diagnosis & Treatment and Upper GI Series (Barium X-ray)
- Indigestion Evaluation and Reflux Esophagitis (GERD) Treatment
- Personalized digestive checkup consultations via our Consultation & Inquiry Desk
Frequently Asked Questions
What are Dr. Gyeongseok Choi's academic credentials and society memberships?
Dr. Gyeongseok Choi earned both his M.D. and Ph.D. from Hanyang University College of Medicine, serves as an Outpatient Professor at Hanyang University College of Medicine, and is a Lifetime Member of both the Korean Society of Gastrointestinal Endoscopy (KSGE) and the Korean Society of Clinical Ultrasound.
Why is combining Upper Endoscopy with Clinical Ultrasound helpful during a checkup?
While gastroscopy directly inspects the inner mucosal lining of the esophagus, stomach, and duodenum, abdominal ultrasound evaluates solid parenchymal organs such as the liver, gallbladder, biliary tract, and kidneys during the same fasting visit.
1:1 Specialist Consultation & Multidisciplinary Screening Standard
All diagnostic screenings, imaging protocols, and sedated endoscopy examinations at Gangnam Heartscan Healthcare Center (B1, Dongil Tower, 38 Teheran-ro 114-gil, Gangnam-gu, Seoul; Samseong Station Exit 2) are performed and interpreted by our 16 board-certified specialists led by Chief Medical Director Dr. Seonghak Park, MD, PhD. Preparation requirements (such as 8–12 hour fasting, contrast media precautions, or post-sedation driving restrictions) vary by clinical condition and medication history.
Schedule a 1:1 Consultation