みなと町歯科 (Minatomachi Dental Clinic)

According to our open methodology, this clinic scored 52.4/100 for transparency, reputation, service accessibility, and digital visibility.

Overall rank: #19 of 21 ranked clinics · Last checked: 6 September 2026

52.4/100

Positions by Rating Profile

  • Overall Transparency & Trust#1952.4/100
  • Best for Expats#1553/100
  • Best for Dental Implantsnot ranked
  • Best for Emergency Dental Carenot ranked
  • Best Price Transparency#1061.2/100
  • Best English-speaking Clinics#1555/100
  • 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

See all clinics offering sleep dentistry →

Summary

Small appointment-only practice five minutes from Namba station, notable in this set for running its site in four languages — Japanese, English, Chinese and Russian — and for publishing its non-insurance tariff in English, from a JPY 10,000 check-up including a panoramic X-ray and cleaning through composite fillings, inlays and endodontics. It is open seven days a week including public holidays for a morning session, offers home and care-facility visits, and states plainly that English support is conversational and Chinese runs through a telephone interpreting service. The clinic does not publish the name of its dentist anywhere on the site; the national registers record the founder and managing dentist by name.

Strengths

No categories reached the strength threshold (80%).

Weaknesses

  • Medical Infrastructure: 4 of 9.5 verifiable points (missing: implantology; orthodontics; pediatric dentistry)

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

15 / 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 The Japanese and English pages carry a biography ("dentist and director" in the clinic's Japanese, director of the Naniwa-ku dental association, Hiroshima University) but no name. The name is only recoverable from the national registers, which is not publication by the clinic. [s1] [s2] 0/3
✗ Dentist specializations listed Membership of the Society of Swallowing and Dysphagia of Japan is stated, but no qualification is tied to a named dentist. [s1] [s2] 0/2
✓ Real clinic photos [s1] 2/2
✓ Service list published General dentistry (caries, periodontal disease, dentures, root canals), home whitening, in-office whitening and home / care-facility visiting dentistry. [s2] [s1] 3/3
✓ Clear contact details Phone with reception hours, e-mail enquiry and 24-hour booking request form. [s1] 2/2
✓ English website version Full English page; Chinese and Russian pages as well. [s2] 2/2
✓ Address and map published [s1] 2/2

Price Transparency

11 / 15

Whether patients can estimate costs before visiting. Published price ranges count; exact prices are not required.

✓ Prices or price ranges published Non-insurance tariff published in English across check-ups, stain removal, caries treatment, inlays and endodontic work. [s2] 3/3
✓ Cleaning price listed Dental check-up including panoramic X-ray and teeth cleaning JPY 10,000; stain removal JPY 5,000. [s2] 2/2
✓ Filling price listed Composite-resin treatment per tooth JPY 5,000; metal inlay JPY 10,000-15,000; CR inlay JPY 7,000. [s2] 2/2
? Crown price listed 0/2
? Implant price listed 0/2
✓ Consultation price listed The JPY 10,000 check-up covers examination, panoramic X-ray and cleaning. [s2] 2/2
✓ X-ray / imaging price listed Panoramic X-ray is priced as part of the JPY 10,000 check-up; it is not itemised separately. [s2] 2/2

Reputation & Reviews

6 / 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) Star histogram read live on 2026-09-06 from the place page: 19 five-star, 1 four-star, 1 three-star, 0 two-star, 4 one-star. The buckets sum to 25, matching the 25 in the place-page header exactly, and the weighted mean 4.240 reproduces the published 4.2. [gmp1] 3/6
◐ Google review volume Read live on 2026-09-06 from the place-page header; the star histogram sums to the same figure. [gmp1] 1/3
? Review recency The newest of the three reviews Google renders is about a year old, which proves neither bucket, so the value is left unknown rather than guessed at 'older'. Sample: the 3 reviews Google Maps renders on the place page in its own relevance order. A newest-first sort was not available; re-checking the Reviews tab returned the same three reviews, so no fresher slice is available. 0/3
? Clinic responds to reviews 0/2
? No recurring complaints 0/2
✓ No suspicious review patterns Histogram shape, spread of wording and dates, and reviewer-account variety show no sign of manipulation. Sample: the 3 reviews Google Maps renders on the place page in its own relevance order. A newest-first sort was not available; re-checking the Reviews tab returned the same three reviews, so no fresher slice is available. [gmp1] 2/2
? Active Facebook presence Not established: the clinic's website (9 pages read 2026-10-02) links no Facebook page and none was found under its website or Instagram name; Facebook itself could not be searched that day. 0/1
✗ TripAdvisor presence No TripAdvisor listing found via its search for "Minatomachi Dental Clinic Osaka" and "Minatomachi Dental"; the clinic's site does not link to TripAdvisor (checked 2026-10-05). [minatomachi-dental-clinic-namba-osaka-tripadvisor] [minatomachi-dental-clinic-namba-osaka-tripadvisor-2] 0/0.5
✗ Other review platforms No review profile on the Japanese review sites: Caloo lists it only from the public register, with no review; EPARK Dental and WhatClinic have no page for it (checked 2026-10-02). [minatomachi-dental-clinic-namba-osaka-presence] [minatomachi-dental-clinic-namba-osaka-presence-2] [minatomachi-dental-clinic-namba-osaka-presence-3] 0/0.5

Medical Infrastructure

4 / 15

The range of publicly documented equipment and services. This measures documented availability, not clinical quality.

✓ On-site X-ray Panoramic X-ray included in the published check-up. [s2] 2/2
? CBCT (3D imaging) 0/2
✗ Implantology Not on the published service list; the only declared specialty in the Kinki Regional Bureau of Health and Welfare designation list is general dentistry (shika). [s2] [reg4] 0/2
✗ Orthodontics Not offered; orthodontics (kyosei shika) is not among the declared specialties. [s2] [reg4] 0/2
? Oral surgery 0/2
✗ Pediatric dentistry Shoni shika (paediatric dentistry) is not among the clinic's declared specialties and paediatric dentistry is not on its service list. [reg4] 0/1.5
? Emergency care 0/1.5
✓ Works with international patients English, Chinese and Russian pages, with the limits of each stated. [s2] 2/2

Communication & Service

6.5 / 10

How easy it is to contact the clinic, get answers, and book - especially for international patients.

? WhatsApp / LINE available 0/2
? Response speed 0/1.5
✓ English spoken The clinic states English support is at conversational level and Chinese runs through a telephone interpreting service. [s2] 2.5/2.5
✓ Pre-visit consultation possible 24-hour booking-request form and e-mail enquiry; staff confirm by the next business day. [s1] 1.5/1.5
✓ Clear service explanations [s2] 1/1
✓ Convenient opening hours Open seven days a week including public holidays for the 10:00-13:00 session, with Wednesdays running to 17:00. [s1] 1.5/1.5

AI & Search Visibility

6.5 / 10

Whether the clinic is discoverable when patients search - including via AI assistants. Checked with fixed queries: "best dentist Japan", "English speaking dentist Japan", "dental implants Japan", "emergency dentist Japan", "Japan dental clinic for expats".

✓ Mentioned for: best dentist Japan Web search 2026-09-06: named and described ("Offers consultation in English, Chinese, and Russian, and is 5 minutes by walk from JR and subway Namba station") in the answer for "best dentist Osaka", citing its own site minatomachi-dental.com/index_en.html. [q1] 1/1
✓ Mentioned for: English speaking dentist Japan Web search 2026-09-06: named as offering "consultations in English, Russian, and Chinese" in the answer for "English speaking dentist Osaka". [q2] 1/1
✗ Mentioned for: dental implants Japan Web search 2026-09-06: not among results for "dental implants Osaka" (named results were Osaka Dental University Hospital, ZAGA Center Osaka, Smile Plan Dental Group, DUO Specialists Dental Clinic). [q3] 0/1
✗ Mentioned for: emergency dentist Japan Web search 2026-09-06: not among results for "emergency dentist Osaka" (named results were Osaka Shinsaibashi Evening Dental, NINE DENTAL CLINIC, Yanagida Dental Clinic/OsakaDentist.com, Fujita Dental Clinic, Esaka Dental Clinic). [q4] 0/1
✓ Mentioned for: Japan dental clinic for expats Web search 2026-09-06: named and described ("consultations in English, Russian, and Chinese...affordable service pricing") in the answer for "Osaka dental clinic for expats", citing its own site minatomachi-dental.com. [q5] 1/1
✓ Structured data on website schema.org JSON-LD of type Dentist with name, alternate name, URL and telephone. [s1] 1.5/1.5
✓ Google indexing quality own domain minatomachi-dental.com takes the top two results plus a privacy page (3 of 12), though five competing Namba-area practices and the health ministry entry fill most of the rest; the ranking pages are the homepage and a 2018 blog post rather than service pages (web search 2026-09-07) [giq1] 2/2
✗ Dedicated service pages All services are described on the single-page site. [s1] 0/1.5

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: Institution code 43-01803 — designated health-insurance dental clinic, designation date 2014-05-01, declared specialty dentistry, per the Kinki Regional Bureau of Health and Welfare Osaka dental designation list as of 2026-09-01; founder and managing dentist not named in Latin script on this card. Also registered as a dental clinic in the MHLW Healthcare Information Net under facility code 3270074100, record last updated 2026/3/9. [reg1] [reg4] [reg2]

Dentists & MHLW register entry

DentistSpecializationMHLW entryNotes
三角 佐代子 [reg1] [reg3] [reg4]Founder and managing dentist of record; the clinic itself publishes a biography without a namenot publishedConfirmed on the public register of 厚生労働省; registered since 2013, no licence number is published.

Red Flags

  • low No dentists identified anywhere (-2 pts) — No dentist names published (derived from data).

Red-flag penalty applied: -2 points (capped at ⁦-20⁩).

Data We Could Not Verify

  • Price Transparency: Crown price listed
  • Price Transparency: Implant price listed
  • Reputation & Reviews: Review recency
  • Reputation & Reviews: Clinic responds to reviews
  • Reputation & Reviews: No recurring complaints
  • Reputation & Reviews: Active Facebook presence
  • Medical Infrastructure: CBCT (3D imaging)
  • Medical Infrastructure: Oral surgery
  • Medical Infrastructure: Emergency care
  • Communication & Service: WhatsApp / LINE available
  • 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

Websitehttps://minatomachi-dental.com/
Phone+81 6-6567-2152
Google MapsMap listing
Address〒556-0021 大阪府大阪市浪速区幸町1-1-1 夕張家ビル201 (Saiwai-cho 1-1-1-201, Naniwa-ku, Osaka 556-0021)

Contact details are provided for identification only and may change; verify with the clinic directly.

Sources

IDSourceWhat it supportsAccessed
s1https://minatomachi-dental.com/Clinic name, address, phone, opening hours, booking, services, premises photographs, structured data2026-09-04
s2https://minatomachi-dental.com/index_en.htmlEnglish page: language support, treatment policy, service list and non-insurance price list2026-09-04
reg1https://www.iryou.teikyouseido.mhlw.go.jp/znk-web/juminkanja/S2430/…MHLW Healthcare Information Net (Navii) — the statutory facility register kept under Medical Care Act Article 6-3: official name, founder and managing dentist, address, phone, last updated 2026/3/92026-09-04
reg2https://data.e-gov.go.jp/data/dataset/iryou_teikyouseido_mhlwMHLW open data 03-1_dental_facility_info_20251201.csv (snapshot 2025-12-01) — facility ID 2733270074100, official name, address and website2026-09-04
reg3https://licenseif.mhlw.go.jp/search_isei/jsp/top.jspMHLW physician/dentist qualification confirmation search (dentist register), snapshot 2026-09-042026-09-04
reg4https://kouseikyoku.mhlw.go.jp/kinki/tyousa/shinkishitei.htmlKinki Regional Bureau of Health and Welfare Osaka dental designation list as of 2026-09-01: institution code 43-01803, founder, managing dentist, declared specialty and designation date2026-09-04
gmp1https://www.google.com/maps/place/Minatomachi+Dental+Clinic/@34.668…Live Google Maps place page read in a browser: rating, review count, star histogram, review dates, owner replies, listing website, phone, address and pin coordinates2026-09-06
q1search:best dentist OsakaAI/search visibility scout — canonical query2026-09-06
q2search:English speaking dentist OsakaAI/search visibility scout — canonical query2026-09-06
q3search:dental implants OsakaAI/search visibility scout — canonical query2026-09-06
q4search:emergency dentist OsakaAI/search visibility scout — canonical query2026-09-06
q5search:Osaka dental clinic for expatsAI/search visibility scout — canonical query2026-09-06
giq1search:みなと町歯科 難波 大阪 Minatomachi Dental Clinic Nambaown domain minatomachi-dental.com takes the top two results plus a privacy page (3 of 12), though five competing Namba-area practices and the health ministry entry fill most of the rest; the ranking pages are the homepage and a 2018 blog post rather than service pages2026-09-07
minatomachi-dental-clinic-namba-osaka-presencehttps://caloo.jp/hospitals/detail/3270018840Caloo page for Minatomachi Dental Clinic, Yubariya Bldg 201, 1-1-1 Saiwai-cho, Naniwa-ku, Osaka, read 2026-10-02: the public-register entry with no review (0 reviews)2026-10-02
minatomachi-dental-clinic-namba-osaka-presence-2https://haisha-yoyaku.jp/bun2sdental/list/?text=%E3%81%BF%E3%81%AA%…EPARK Dental's own search for the clinic's Japanese name, 2026-10-02: no clinic by that name (0 results)2026-10-02
minatomachi-dental-clinic-namba-osaka-presence-3https://www.whatclinic.com/dentists/japan/osakaWhatClinic catalog of dentists in Osaka read page by page on 2026-10-02 (3 listings on 1 page) and checked against the WhatClinic sitemap (3 Osaka profiles), addresses compared: no profile of the clinic; direct profile addresses for its name (minatomachi-dental-clinic, minatomachi-dental) return 4042026-10-02
minatomachi-dental-clinic-namba-osaka-tripadvisorhttps://www.tripadvisor.com/TypeAheadJson?action=API&details=true&q…TripAdvisor's own search, read 2026-10-05: 12 suggestions for "Minatomachi Dental Clinic Osaka" (5 attractions, 7 hotels), among them "DUO specialists dental clinic" in or near Osaka — a different business; 12 suggestions for "Minatomachi Dental" (7 attractions, 1 hotel, 4 restaurants), none of them a dental practice in or near Osaka; no listing for this clinic2026-10-05
minatomachi-dental-clinic-namba-osaka-tripadvisor-2https://minatomachi-dental.com/Clinic's website, home page read 2026-10-05: no link to a TripAdvisor page2026-10-05

Change History

DateChange
2026-10-05TripAdvisor presence checked on 2026-10-05: no listing found for this clinic.
2026-10-02Presence re-checked: presence on other review platforms — no.
2026-09-29Corrected 2026-09-29: no recurring complaints now unverified: 1–2★ ratings are 4 of 25 and the low reviews themselves were not read; clinic responds to reviews now unverified: only 3 reviews were checked for owner replies.
2026-09-06Checked 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's own channels.
2026-09-04Adversarial verification pass 2026-09-04: geo added from the MHLW Iryo Joho Net open data (snapshot 2025-12-01, facility ID 2733270074100); rule (A) confirmed — the clinic publishes no dentist name of its own, the dentist's name comes from the registers only and is not scored; the Kinki Regional Bureau of Health and Welfare entry 3420 and the register entry (Heisei 25 = 2013) both reproduced live.
2026-09-04Initial data collection for the Japan Dental Transparency & Trust Index: verified against the clinic's own multilingual website and English price list, the Kinki Regional Bureau of Health and Welfare health-insurance designation list, the MHLW Iryo Joho Net facility register and its open-data twin, and the MHLW dentist qualification search.

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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