5 Recommended Gum Treatment Clinics in Seongnam, Gyeonggi (2026)
Based on public data from HIRA (Health Insurance Review & Assessment Service, South Korea), 20 dental clinics in Seongnam, Gyeonggi meet the criteria: Periodontics specialist (clinics located anywhere in Seongnam, Gyeonggi (all districts)). The 5 shown director-verified clinics first, then longest-operating (by HIRA-registered opening date) are Bakae Dental Clinic（Est. May 1987）, Gimnamyun Dental Clinic（Est. May 1999）, Gukgunsudo Dental Hospital（Est. Jun 2002）, Yeonsegounmiso Dental Clinic（Est. May 2004）, 21segi Dental Clinic（Est. Aug 2004）. Selection criteria are fully disclosed below; no clinic has paid for inclusion or ranking, and no ratings or review data are used. SOURCE HIRA (Health Insurance Review & Assessment Service) public data, South Korea · Data as of October 9, 2026
Selection criteria: fully disclosed
- Clinics with at least one Periodontics specialist registered with HIRA (Health Insurance Review & Assessment Service, the South Korean government agency for healthcare data)
- The 5 clinics meeting all criteria above, shown director-verified clinics first, then longest-operating (by HIRA-registered opening date) (director-verified clinics appear first because their information was provided and confirmed directly; this is not paid placement)
All data comes from HIRA, the South Korean government agency that registers every licensed medical institution. Where a clinic director has verified their treatment hours directly, that information takes precedence (clinics located anywhere in Seongnam, Gyeonggi (all districts)). The full list of all 20 qualifying clinics is on the Korean list page.
Tips for visitors: Korean addresses below are shown in the original Korean, paste them into Naver Map or Kakao Map (Google Maps has limited detail in South Korea), or show them to a taxi driver. Prices for non-insured treatments (implants, orthodontics, veneers) are set by each clinic, confirm fees and language support directly with the clinic before visiting.
1. Bakae Dental Clinic (박애치과의원)
· ☎ +82 31-749-6393
Seongnam-si, Gyeonggi-do · 경기도 성남시 수정구 산성대로215번길 3, 관서형빌딩 7층 (신흥동)
2. Gimnamyun Dental Clinic (김남윤치주과치과의원)
· ☎ +82 31-747-2275
Seongnam-si, Gyeonggi-do · 경기도 성남시 수정구 수정로 290, 3층 (신흥동)
3. Gukgunsudo Dental Hospital (국군수도치과병원)
Seongnam-si, Gyeonggi-do · 경기도 성남시 분당구 새마을로177번길 81, 66호 (율동)
4. Yeonsegounmiso Dental Clinic (연세고운미소치과의원)
weekdays until 20:00 · open Sundays (09:00 ~ 13:00) · parking: 300 spaces (free) · ☎ +82 31-712-2875
Seongnam-si, Gyeonggi-do · 경기도 성남시 분당구 성남대로 165, 천사의도시1 오피스텔 311~315호 (금곡동)
5. 21segi Dental Clinic (21세기치과의원)
· ☎ +82 31-708-0021
Seongnam-si, Gyeonggi-do · 경기도 성남시 분당구 돌마로 482, 3층 (서현동, 주영빌딩)
At a glance
| Clinic | Est. | Specialists | Cone-beam CT | Evenings | Sundays | Parking |
|---|---|---|---|---|---|---|
| Bakae Dental Clinic | 1987 | 1 | 1 | - | - | - |
| Gimnamyun Dental Clinic | 1999 | 1 | 1 | - | - | - |
| Gukgunsudo Dental Hospital | 2002 | 17 | 1 | - | - | - |
| Yeonsegounmiso Dental Clinic | 2004 | 5 | 2 | until 20:00 | Yes | Yes |
| 21segi Dental Clinic | 2004 | 3 | 1 | - | - | - |
Evenings = registered weekday closing time of 7 PM or later · Sundays/Parking = per HIRA detailed records (director-verified hours take precedence) · Cone-beam CT = units registered with HIRA. Always confirm directly with the clinic before visiting.
Frequently asked questions
Which Periodontics specialist dental clinic in Seongnam, Gyeonggi has been operating the longest?
Based on HIRA-registered opening dates, Bakae Dental Clinic (박애치과의원), open since May 1987. Years in operation is a registration fact, not an assessment of clinical quality. (Source: HIRA)
Which Periodontics specialist clinics in Seongnam, Gyeonggi are open on weekday evenings?
3 clinics have registered weekday hours ending at 7 PM or later: Yeonsegounmiso Dental Clinic（until 20:00）, Insaengpeulranteu Dental Clinic（until 20:30）, Sanseongyeseu Dental Clinic（until 20:30）, and the latest registered closing time is 20:30 at Insaengpeulranteu Dental Clinic. Hours verified directly by the clinic director take precedence where available. (Source: HIRA · director-verified)
Are any gum disease treatment specialist clinics in Seongnam, Gyeonggi open on Sundays?
2 clinics have registered Sunday hours: Yeonsegounmiso Dental Clinic（09:00 ~ 13:00）, Insaengpeulranteu Dental Clinic（10:00 ~ 15:00）. (Source: HIRA · director-verified)
Which of these clinics have parking?
3 clinics have registered parking: Yeonsegounmiso Dental Clinic（300 spaces (free)）, Insaengpeulranteu Dental Clinic（20 spaces (free)）, Sanseongyeseu Dental Clinic（20 spaces (free)）. (Source: HIRA)
Which clinics have a cone-beam CT (3D CT) scanner registered?
19 clinics have a cone-beam CT registered with HIRA: Bakae Dental Clinic（1）, Gimnamyun Dental Clinic（1）, Gukgunsudo Dental Hospital（1）. A cone-beam CT is the 3D imaging device used to plan implant placement; counts are as registered by each clinic with HIRA. (Source: HIRA equipment records)
What does "recommended" mean here, and what are the selection criteria?
Only disclosed facts: 1) Clinics with at least one Periodontics specialist registered with HIRA (Health Insurance Review & Assessment Service, the South Korean government agency for healthcare data) 2) The 5 clinics meeting all criteria above, shown director-verified clinics first, then longest-operating (by HIRA-registered opening date) (director-verified clinics appear first because their information was provided and confirmed directly; this is not paid placement). This is an informational shortlist that narrows options by objective criteria, not an evaluation or guarantee of any clinic's treatment quality or outcomes.
Is this list an advertisement?
No. No clinic has paid to appear on this list, and payment cannot buy inclusion or ranking. The list is compiled from HIRA public data using the criteria above, shown director-verified clinics first, then longest-operating (by HIRA-registered opening date). Director-verified clinics appear first because their information was confirmed directly, verification is a free process open to every clinic, unrelated to partnership or payment. No ratings or review data are used.
How does a clinic get "director-verified"? Does it cost anything?
It is free. A clinic director submits information through the "Our clinic" page on DentStat; the site operator checks the submission against HIRA registration data before publishing, and promotional or evaluative wording is not accepted so only facts are published. The process is open to every clinic regardless of partnership. Where HIRA registration (specialist count, hours) lags reality, director-verified data is shown alongside with its own source label.
이 페이지의 한국어판: Seongnam, Gyeonggi (Korean version)