正光牙醫診所 (Cheng Kuang Dental Clinic)
According to our open methodology, this clinic scored 62.2/100 for transparency, reputation, service accessibility, and digital visibility.
Overall rank: #9 of 21 ranked clinics · Last checked: 6 September 2026
62.2/100
Positions by Rating Profile
- Overall Transparency & Trust#962.2/100
- Best for Expats#764.3/100
- Best for Dental Implants#857/100
- Best for Emergency Dental Carenot ranked
- Best Price Transparency#844.1/100
- Best English-speaking Clinics#669.7/100
- Best for Families / Childrennot ranked
- Sleep Dentistry (GA / deep sedation)not ranked
General Anaesthesia & Deep Sedation
Whether the clinic documents treatment under general anaesthesia or deep / twilight sedation — "sleep dentistry", where the patient is asleep and unaware (does not feel, see, or hear the procedure). Ordinary conscious sedation, where the patient stays awake and responsive, does not count here. This is informational and does not affect the transparency score.
- ? General anaesthesia / deep sedation (sleep dentistry) — Not verified The clinic documents needle-free jet local anaesthesia, but no general anaesthesia or deep sedation service.
Summary
Long-established practice five minutes’ walk from Tainan railway station along Chenggong Rd., NHI-contracted since 1998 and led by Robert Tsai. The clinic publishes eleven dentists with both Chinese and English names and their hospital and university training, a weekday timetable running to 20:00, and an equipment page listing CS8100 and CS9600 dental CT units, a water laser, piezosurgery, a PRF centrifuge, a 3D intraoral scanner and needle-free jet anaesthesia. The American Institute in Taiwan lists it under Dentistry as Cheng Kuang Dental Clinic.
Strengths
- Information Transparency: 18 of 20 points.
- Reputation & Reviews: 18 of 20 points.
- Communication & Service: 8.5 of 10 points.
- No red flags identified in public sources.
Weaknesses
- Price Transparency: 0 of 3 verifiable points (missing: prices or price ranges published)
- AI & Search Visibility: 1.5 of 10 verifiable points (missing: mentioned for: best dentist Taiwan; mentioned for: English speaking dentist Taiwan; mentioned for: dental implants Taiwan; mentioned for: emergency dentist Taiwan; mentioned for: Taiwan dental clinic for expats; structured data on website; google indexing quality)
Score Breakdown
Every criterion below is scored from public sources. ✓ verified yes · ✗ verified no / not found · ◐ partial · ? unverified (scores 0, not a negative finding).
Information Transparency
18 / 20
Whether basic facts about the clinic - its team, premises, services, and location - are publicly verifiable.
| ✓ | Has a working website [s1] | 4/4 |
| ✓ | Dentist names listed Eleven dentists named on the dentist-roster page, each with a published English name (Robert Tsai, Eric Huang, Jimmy Mau and others). The MOHW institution record counts 4 dentists registered at these premises (checked 2026-09-04); the register never publishes their names, so the published roster and the registration count cannot be reconciled from any official source. [s2] | 3/3 |
| ✓ | Dentist specializations listed Every entry lists qualifications, e.g. Jimmy Mau — specialist of the Taiwan periodontology society, specialist of the Republic of China oral implantology society; Huang Tzu-Chieh — UCLA (USA) orthodontic specialist; Hsiao Chu-Ting — MOHW-certified endodontic specialist. [s2] | 2/2 |
| ✓ | Real clinic photos The premises-tour page carries photographs of the premises. [s5b] | 2/2 |
| ✓ | Service list published The treatments section lists dental implants, full-mouth reconstruction, all-ceramic crowns, ceramic inlays, cold-light whitening, home whitening, orthodontics, Invisalign and periodontal diagnosis and treatment. [s3] | 3/3 |
| ✓ | Clear contact details Phone, LINE ID and full postal address on the contact page and in the header of every page. [s4] | 2/2 |
| ✗ | English website version The site is Traditional Chinese; only headings and the dentists’ English names appear in English, with no English version. [s1] | 0/2 |
| ✓ | Address and map published Postal address with directions from the railway station; matches the MOHW register entry. [s4] [reg1] | 2/2 |
Price Transparency
0 / 15
Whether patients can estimate costs before visiting. Published price ranges count; exact prices are not required.
| ✗ | Prices or price ranges published No fee page in the navigation and no figures on the treatment, case or equipment pages. [s1] [s3] | 0/3 |
| ? | Cleaning price listed | 0/2 |
| ? | Filling price listed | 0/2 |
| ? | Crown price listed | 0/2 |
| ? | Implant price listed | 0/2 |
| ? | Consultation price listed | 0/2 |
| ? | X-ray / imaging price listed | 0/2 |
Reputation & Reviews
18 / 20
Public review signals. The Google rating is adjusted with a Bayesian prior (rating 4.0, weight 25) so a 5.0 from a handful of reviews does not outrank a 4.8 from hundreds.
| ✓ | Google rating (Bayesian-adjusted) as of 2026-10-05 [cheng-kuang-dental-tainan-deepen] | 6/6 |
| ✓ | Google review volume [cheng-kuang-dental-tainan-deepen] | 3/3 |
| ◐ | Review recency The newest review visible is 7 months old, which proves the within-a-year bucket and no better. Sample: the three reviews Google Maps renders on the place page in its own relevance order; a newest-first list was not available. [gmp1] | 1.5/3 |
| ✓ | Clinic responds to reviews The owner replies to Google reviews: 5 of the 10 reviews read carry an owner reply, 4 of them recent (within the last 12 months), the latest reply dated 2026-10-02. [cheng-kuang-dental-tainan-deepen] | 2/2 |
| ✓ | No recurring complaints None of the three reviews Google renders is critical; all three are five-star, one of them from a foreign patient describing a composite filling. The histogram carries 43 one-star and 6 two-star ratings out of 1,450 (3.4 per cent) that the visible sample cannot reach. Sample: the three reviews Google Maps renders on the place page in its own relevance order; a newest-first list was not available. [gmp1] | 2/2 |
| ✓ | No suspicious review patterns The 1387/12/2/6/43 distribution carries a graded tail over a base of nearly 1,500 reviews - not the shape manipulation produces. Sample: the three reviews Google Maps renders on the place page in its own relevance order; a newest-first list was not available. [gmp1] | 2/2 |
| ✓ | Active Facebook presence The clinic links its own page, facebook.com/dentydoctor. [s1] | 1/1 |
| ✗ | TripAdvisor presence No TripAdvisor listing found via its search for "Cheng Kuang Dental Clinic Tainan" and "Cheng Kuang"; the clinic's site does not link to TripAdvisor (checked 2026-10-05). [cheng-kuang-dental-tainan-tripadvisor] [cheng-kuang-dental-tainan-tripadvisor-2] | 0/0.5 |
| ✓ | Other review platforms Dent&Co profile carries over a thousand public patient reviews. [s6] | 0.5/0.5 |
Medical Infrastructure
10 / 15
The range of publicly documented equipment and services. This measures documented availability, not clinical quality.
| ✓ | On-site X-ray Dental 2D tomography unit CS8100 on the professional-equipment page. [s5] | 2/2 |
| ✓ | CBCT (3D imaging) Dental 3D tomography CS9600 cone-beam unit, used with surgical guides. [s5] | 2/2 |
| ✓ | Implantology Dedicated dental-implant page and All-on-4 / All-on-6 case section. [s3] | 2/2 |
| ✓ | Orthodontics Orthodontics and Invisalign pages; Huang Tzu-Chieh is a UCLA-trained orthodontic specialist. [s3] [s2] | 2/2 |
| ✓ | Oral surgery Piezosurgery and PRF centrifuge on the equipment page; Jimmy Mau is a periodontics specialist and former head of dentistry at Chi Mei Jiali Hospital. [s5] [s2] | 2/2 |
| ✗ | Pediatric dentistry Children’s dentistry does not appear in the published treatments list. [s3] | 0/1.5 |
| ? | Emergency care | 0/1.5 |
| ? | Works with international patients | 0/2 |
Communication & Service
8.5 / 10
How easy it is to contact the clinic, get answers, and book - especially for international patients.
| ✓ | WhatsApp / LINE available LINE ID @CK2220666 published in the header of every page. [s1] | 2/2 |
| ? | Response speed | 0/1.5 |
| ✓ | English spoken Listed by the American Institute in Taiwan among Tainan health care providers for US citizens; the clinic also publishes English names for its dentists. [s7] [s2] | 2.5/2.5 |
| ✓ | Pre-visit consultation possible A first-visit process page and a contact form for questions before the first visit. [s4] | 1.5/1.5 |
| ✓ | Clear service explanations Each treatment page explains the procedure and staging in plain language. [s3] | 1/1 |
| ✓ | Convenient opening hours Published timetable: Monday to Friday 09:00–12:00, 14:00–17:30 and 17:30–20:00; closed at weekends. [s5b] | 1.5/1.5 |
AI & Search Visibility
1.5 / 10
Whether the clinic is discoverable when patients search - including via AI assistants. Checked with fixed queries: "best dentist Taiwan", "English speaking dentist Taiwan", "dental implants Taiwan", "emergency dentist Taiwan", "Taiwan dental clinic for expats".
| ✗ | Mentioned for: best dentist Taiwan Web search 2026-09-06: not among results for "best dentist Tainan" (top results named Mu Shan Hao Dental Clinic and aggregator top-10/highly reviewed lists, not this clinic). [sq1] | 0/1 |
| ✗ | Mentioned for: English speaking dentist Taiwan Web search 2026-09-06: not among results for "English speaking dentist Tainan"; the answer states results for Tainan specifically were limited and points to the AIT directory instead of a named clinic. [sq2] | 0/1 |
| ✗ | Mentioned for: dental implants Taiwan Web search 2026-09-06: not among results for "dental implants Tainan" (top result was Mu Shan Hao Dental Clinic). [sq3] | 0/1 |
| ✗ | Mentioned for: emergency dentist Taiwan Web search 2026-09-06: not among results for "emergency dentist Tainan" (named results were Kaohsiung VGH Tainan Branch and Mu Shan Hao Dental Clinic). [sq4] | 0/1 |
| ✗ | Mentioned for: Taiwan dental clinic for expats Web search 2026-09-06: not among results for "Tainan dental clinic for expats" (named results were Mu Shan Hao Dental Clinic, Kaohsiung VGH Tainan Branch, Tainan Municipal Hospital). [sq5] | 0/1 |
| ✗ | Structured data on website No schema.org JSON-LD in the page source. [s1] | 0/1.5 |
| ✗ | Google indexing quality own domain denty.com.tw appears only twice, last among 10 results, behind the AIT consular directory, Facebook, a dental blog and Wikipedia noise (web search 2026-09-07) [giq1] | 0/2 |
| ✓ | Dedicated service pages A separate page per treatment under the treatments section. [s3] | 1.5/1.5 |
Licensing & Credentials
Whether the clinic publishes its operating licence and the dentists working there together with their professional licence numbers. A verified “not published” is recorded as a red flag; data we have not checked yet is shown as unverified and carries no penalty.
Clinic operating licence: 3721030309 — MOHW institution code; facility type dental clinic, operating status operating, NHI-contracted since 1998-06-01. Checked in the MOHW institution register on 2026-09-04. [reg1] [reg3]
Dentists & professional licences
| Dentist | Specialization | Licence No. |
|---|---|---|
| 蔡文裕 (Robert Tsai) [s2] [reg2] | Director; board-certified specialist, International Congress of Oral Implantologists (ICOI); postgraduate implant-dentistry training, UCLA, USA; Bachelor's degree in Dentistry, Kaohsiung Medical University | not verified |
| 黃仲偉 (Eric Huang) [s2] [reg2] | Board-certified implant and oral-rehabilitation specialist, New York University; board-certified specialist, Republic of China Implant Dentistry Association; postgraduate implant-dentistry training, Harvard Medical School | not verified |
| 毛念平 (Jimmy Mau) [s2] [reg2] | Board-certified specialist, Taiwan Academy of Periodontology; board-certified specialist, Republic of China Academy of Oral Implantology; attending periodontist, Chi Mei Medical Center; Ministry of Education-certified associate professor | not verified |
Dentists are named; their licence numbers have not been checked against public sources yet — unverified, no penalty.
Red Flags
No red flags identified in the public sources we reviewed.
Data We Could Not Verify
- Price Transparency: Cleaning price listed
- Price Transparency: Filling price listed
- Price Transparency: Crown price listed
- Price Transparency: Implant price listed
- Price Transparency: Consultation price listed
- Price Transparency: X-ray / imaging price listed
- Medical Infrastructure: Emergency care
- Medical Infrastructure: Works with international patients
- Communication & Service: Response speed
Unverified items score 0 points but are not treated as negative findings. If you can document any of them, please send a correction.
Contact Information
| Website | http://www.denty.com.tw/ |
|---|---|
| Phone | +886 6 222 0666 |
| LINE | https://line.me/R/ti/p/@CK2220666 |
| https://www.facebook.com/dentydoctor/ | |
| Google Maps | Map listing |
| Address | 台南市中西區成功路327號 (No. 327, Chenggong Rd., West Central Dist., Tainan, Taiwan) |
Contact details are provided for identification only and may change; verify with the clinic directly.
Sources
| ID | Source | What it supports | Accessed |
|---|---|---|---|
| s1 | http://www.denty.com.tw/index.php | Clinic homepage: contacts, LINE ID, Facebook link, navigation showing no fee page, absence of an English version | 2026-09-04 |
| s2 | http://www.denty.com.tw/team.php | Dentist-team page — eleven dentists with Chinese and English names and full credentials | 2026-09-04 |
| s3 | http://www.denty.com.tw/services.php | Treatment-services page — the nine treatment areas and their individual pages; no prices | 2026-09-04 |
| s4 | http://www.denty.com.tw/contact.php | Contact-us page — postal address, phone, LINE ID and directions | 2026-09-04 |
| s5 | http://www.denty.com.tw/equipment.php | Equipment page — CS8100 and CS9600 CT units, water laser, piezosurgery, PRF centrifuge, 3D intraoral scanner, needle-free jet anaesthesia | 2026-09-04 |
| s5b | http://www.denty.com.tw/about-us.php | About-us page — clinic statement, the weekly timetable and links to the premises tour | 2026-09-04 |
| reg1 | https://ma.mohw.gov.tw/Accessibility/BASSearch/MASearchBAS | MOHW medical institution search (Ministry of Health and Welfare medical institution register): institution code, ownership class, facility type, operating status, phone, street address and NHI-contract flag | 2026-09-04 |
| reg2 | https://ma.mohw.gov.tw/Accessibility/DOCSearch/MASearchDOC | MOHW medical personnel search (Ministry of Health and Welfare medical personnel register): confirms that a named person is a currently registered practising dentist and the county of practice. The register publishes no licence number and no person-to-clinic link. | 2026-09-04 |
| reg3 | https://info.nhi.gov.tw/api/iode0000s01/Dataset?rId=A21030000I-D210… | National Health Insurance Administration open dataset (NHI-contracted institutions – clinics; daily refresh, file timestamp 2026-09-04): institution code, name, phone, address, contract start date and contract-end / closure date | 2026-09-04 |
| s6 | https://www.dentco.tw/clinic/3721030309 | Dent&Co ("Dentist's Helper") directory profile: corroborates address and phone and carries 1,447 public patient reviews (existence and third-party review presence only; not a clinic channel) | 2026-09-04 |
| s7 | https://www.ait.org.tw/services/medical-assistance/kaohsiung-medica… | American Institute in Taiwan list of health care providers in the Southern Taiwan consular district: the clinic is listed under Dentistry with the English name it uses, its address and phone | 2026-09-04 |
| sq1 | search:best dentist Tainan | AI/search visibility scout — canonical query | 2026-09-06 |
| sq2 | search:English speaking dentist Tainan | AI/search visibility scout — canonical query | 2026-09-06 |
| sq3 | search:dental implants Tainan | AI/search visibility scout — canonical query | 2026-09-06 |
| sq4 | search:emergency dentist Tainan | AI/search visibility scout — canonical query | 2026-09-06 |
| sq5 | search:Tainan dental clinic for expats | AI/search visibility scout — canonical query | 2026-09-06 |
| gmp1 | https://www.google.com/maps/search/%E6%AD%A3%E5%85%89%E7%89%99%E9%8… | Live Google Maps place page read in a browser: rating, review count, star histogram, review dates, owner replies, listing website, phone, address and pin coordinates | 2026-09-06 |
| giq1 | search:正光牙醫診所 台南 Cheng Kuang Dental Clinic Tainan | own domain denty.com.tw appears only twice, last among 10 results, behind the AIT consular directory, Facebook, a dental blog and Wikipedia noise | 2026-09-07 |
| cheng-kuang-dental-tainan-tripadvisor | https://www.tripadvisor.com/TypeAheadJson?action=API&details=true&q… | TripAdvisor's own search, read 2026-10-05: 12 suggestions for "Cheng Kuang Dental Clinic Tainan" (5 attractions, 7 hotels), none of them a dental practice in or near Tainan; 12 suggestions for "Cheng Kuang" (6 attractions, 2 hotels, 4 restaurants), none of them a dental practice in or near Tainan; no listing for this clinic | 2026-10-05 |
| cheng-kuang-dental-tainan-tripadvisor-2 | http://www.denty.com.tw/ | Clinic's website, home page read 2026-10-05: no link to a TripAdvisor page | 2026-10-05 |
| cheng-kuang-dental-tainan-deepen | https://www.google.com/maps?cid=14800613830948460728&hl=en | The clinic's own Google listing (Dental clinic; No. 327, Chenggong Rd, West Central District, Tainan City, Taiwan 700; telephone +886 6 222 0666), read 2026-10-05 in 2 review orders (lowest-rated first, newest first): 4.9 from 1460 reviews (1★ 44 / 2★ 6 / 3★ 2 / 4★ 12 / 5★ 1396); 10 distinct reviews read, dated 2024-03-28 to 2026-09-30, 5 with an owner reply. | 2026-10-05 |
Change History
| Date | Change |
|---|---|
| 2026-10-05 | Tied this card to the clinic's own Google listing (same street address and telephone number) and read it on 2026-10-05 in 2 review orders (10 distinct reviews, dated 2024-03-28 to 2026-09-30; 4.9 from 1460): owner replies true. Google rating and review count updated to 4.9 from 1460 (was 4.9 from 1450). |
| 2026-10-05 | TripAdvisor presence checked on 2026-10-05: no listing found for this clinic. |
| 2026-09-29 | Corrected 2026-09-29: clinic responds to reviews now unverified: only 3 reviews were checked for owner replies. |
| 2026-09-06 | Checked by hand in a browser: the Google Maps place page was opened in a real browser and read for rating, review count, star histogram, review recency, owner replies, complaint and manipulation reading, listing website, phone, address and pin coordinates; the checks that needed a rendering browser were worked through on the clinic own channels. |
| 2026-09-04 | Initial data collection for the Taiwan Dental Transparency & Trust Index: verified against the clinic’s own site, the MOHW institution and personnel registers, the NHI daily open dataset and the AIT provider list. |
A question or a correction?
Have a question, a suggestion, or a correction to this page? Get in touch — we read every message. Verified data corrections are reviewed against sources and applied with a public change-history entry.
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