UMNAGUMO GROUP
Umnagumo Plastic Surgery is the Korea branch of Tokyo Nagumo Clinic (ナグモクリニック), the single-specialty breast clinic group founded in Japan in 1988. We operate a five-branch network spanning Tokyo, Nagoya, Osaka, Fukuoka, and Gangnam, Seoul.
GROUP IDENTITY
Umnagumo Plastic Surgery is the Korea branch of Tokyo Nagumo Clinic (ナグモクリニック), the breast-specialty clinic group founded in Tokyo in 1988. The Seoul branch opened in 2003 in the Nonhyeon-dong area of Gangnam. Director Dr. Soonchan Eom was appointed Chief Surgeon of the Tokyo Nagumo Clinic in 2000 — the first Korean physician ever to hold that role — and brought the clinical experience accumulated at the Tokyo headquarters back to establish a single-specialty breast clinic in Korea.
Dr. Yoshinori Nagumo, the chairman and director of the Tokyo headquarters, visits the Korea branch on a recurring basis for consultations and clinical oversight. The two entities operate as separate legal entities, but they share surgical protocols, clinical know-how, and the introduction of new technologies (Mia Femtech™, Preservé™, and others) — a continuous personnel and technical lineage.
This section of the site documents the medical relationship between the Tokyo headquarters and the Korea branch, the five-branch network, the career and credentials of Chairman Nagumo, the group’s history, and the technology lineup introduced through the Japanese headquarters.
NETWORK
Following the founding of the Tokyo headquarters in 1988, the group expanded across Japan to four branches, and in 2003 opened its fifth — Umnagumo, in Seoul.
TOKYO
ナグモクリニック東京
Group headquarters. Director Yoshinori Nagumo (Chairman) practices on-site.
NAGOYA
ナグモクリニック名古屋
In-person and online consultations. Active on Instagram and Facebook.
OSAKA
ナグモクリニック大阪
In-person and online consultations. Group-wide Instagram presence.
FUKUOKA
ナグモクリニック福岡
Director earned Japan's Breast Specialist credential in 1995. Active on LINE and Instagram.
SEOUL
Korea BranchUmnagumo (엄나구모)
Dr. Soonchan Eom (appointed Chief Surgeon at Tokyo Nagumo in 2000 — the first Korean to hold the role — opened the Korea branch in 2003).
CHAIRMAN VISIT
Dr. Yoshinori Nagumo, chairman and director of Tokyo Nagumo Clinic, visits the Korea branch of Umnagumo Plastic Surgery on a recurring basis to take part in consultations and clinical oversight. Surgical protocols and the introduction of new technologies developed at the Tokyo headquarters are transmitted directly to the Korea branch, and complex cases arising in Korea are discussed in clinical conference with the headquarters.
The two organizations operate as separate legal entities and do not share revenue or accounting. What they share is a medical lineage — surgical technique, clinical know-how, and personnel continuity.
GROUP SYSTEM
Mammary surgery, aesthetic surgery, plastic and reconstructive surgery, and preventive medicine — disciplines that are usually fragmented across separate clinics — are operated here as a single integrated system.
BREAST AESTHETIC
Breast augmentation (silicone implants, hyaluronic acid, autologous fat, Mia Femtech™, Preservé™), breast reduction, mastopexy, implant removal, nipple and areola correction.
BREAST RECONSTRUCTION
Breast cancer screening, oncologic surgery, immediate reconstruction, second-opinion consultations, and pharmacological therapy. The Tokyo headquarters operates a dedicated Breast Reconstruction Center building (since 2014).
GID INTEGRATED CARE
Operated in accordance with Japan Society of Psychiatry and Neurology guidelines. Hormone therapy, FTM and MTF gender-affirming surgery, and chest contouring delivered as an integrated program.
PREVENTIVE MEDICINE
Dr. Yoshinori Nagumo, the founding director, hosts "Dr. Nagumo's Nutrition Clinic Channel" — public-facing content on cancer prevention through diet and lifestyle.
DIVE DEEPER
First Korean Chief Surgeon at Tokyo Nagumo (2000) → Korea branch opens in Gangnam (2003). The clinical and technical line that runs from Tokyo to Seoul.
Founder of the Nagumo Medical Corporation and a first-generation Japanese breast-surgery specialist. Media presence, the Nutrition Clinic Channel, Ikeda-cho Hometown Ambassador appointment.
Tokyo, Nagoya, Osaka, Fukuoka, plus Seoul. Detailed location, scope of practice, and multilingual support information for each branch.
Key milestones from the 1988 Tokyo Ueno founding to the present five-branch operation.
Mia Femtech™, Preservé™, and other technologies introduced through the Japanese headquarters, plus the full silicone implant lineup.
EDITORIAL NOTES
Information on the Tokyo Nagumo headquarters and its Japanese branches is sourced from the official website at nagumo.or.jp and the organization’s publicly available materials (YouTube, press coverage, academic presentations). For detailed clinical information on the Japan headquarters, please consult the official Japanese-language site directly. Umnagumo Plastic Surgery (the Korea branch) is independently licensed in the Republic of Korea under the Medical Service Act; this page documents the medical and personnel relationship between the two entities rather than offering treatment claims for any individual patient.
REFERENCES
