MVZ Dr. Derin, Boulaaouin Zahnärzte
According to our open methodology, this clinic scored 63.9/100 for transparency, reputation, service accessibility, and digital visibility.
Overall rank: #5 of 25 ranked clinics · Last checked: 1 September 2026
Positions by Rating Profile
- Overall Transparency & Trust#563.9/100
- Best for Expats#956.8/100
- Best for Dental Implants#263.5/100
- Best for Emergency Dental Care#465.8/100
- Best Price Transparency#941.3/100
- Best English-speaking Clinicsnot ranked
- Best for Families / Children#568.8/100
- Sleep Dentistry (GA / deep sedation)#263.9/100
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) — General anaesthesia / deep sedation documented General anaesthesia on request. [s1]
Summary
MVZ Dr. Derin, Boulaaouin Zahnärzte is a large multi-dentist practice on Frankfurt's Zeil, offering CBCT-planned implantology, oral surgery, pediatric dentistry, aligner orthodontics and an in-house dental laboratory, with consultation available in over 10 languages and long weekday/Saturday hours. The German-only website publishes an extensive service menu with real photos but no price figures.
Strengths
- Information Transparency: 18 of 20 points.
- Reputation & Reviews: 19 of 20 points.
- Medical Infrastructure: 15 of 15 points.
- No red flags identified in public sources.
Weaknesses
- Price Transparency: 0 of 15 verifiable points (missing: prices or price ranges published; cleaning price listed; filling price listed; crown price listed; implant price listed; consultation price listed; x-ray / imaging price listed)
- AI & Search Visibility: 3 of 8 verifiable points (missing: mentioned for: best dentist Germany; mentioned for: English speaking dentist Germany; mentioned for: dental implants Germany; mentioned for: emergency dentist Germany; mentioned for: Germany dental clinic for expats)
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
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 Mohamed Boulaaouin, Dr. Ismail Derin, Dr. Rachid, Kamal Kalaci, Medina Smajic, Foojan Mohammadi, Dr. Natalie Abdurrahman, Hatice Derin. [s1] | 3/3 |
| ✓ | Dentist specializations listed [s1] | 2/2 |
| ✓ | Real clinic photos [s1] | 2/2 |
| ✓ | Service list published 16 listed specialties. [s1] | 3/3 |
| ✓ | Clear contact details [s1] | 2/2 |
| ✗ | English website version [s1] | 0/2 |
| ✓ | Address and map published [s1] [sm] | 2/2 |
Price Transparency
Whether patients can estimate costs before visiting. Published price ranges count; exact prices are not required.
Reputation & Reviews
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 2026-09-01 [sm] | 6/6 |
| ◐ | Google review volume [sm] | 2.5/3 |
| ✓ | Review recency Top displayed review dated 1 month ago; new photos added 26 days ago. [sm] | 3/3 |
| ✓ | Clinic responds to reviews Owner replied to a positive review. [sm] | 2/2 |
| ✓ | No recurring complaints Low ratings are few (1★ 15 / 2★ 1 / 3★ 1 / 4★ 14 / 5★ 437; 3.4 % one or two stars) and the five lowest-rated Google reviews (2025-2026) concern different things: insurance-driven crowns, a denture needing repeat visits, a 45-minute wait, unfriendly staff and a bare one-line verdict. [mvz-derin-boulaaouin-zahnaerzte-deepen] | 2/2 |
| ✓ | No suspicious review patterns 10 Google reviews read (2025-06-10 to 2026-09-26): no burst of five-star ratings (at most 2 on one day), no repeated wording; accounts hold 1-195 reviews, 1 single-review. [mvz-derin-boulaaouin-zahnaerzte-deepen] | 2/2 |
| ✓ | Active Facebook presence [s1] | 1/1 |
| ✗ | TripAdvisor presence No TripAdvisor listing found via its search for "MVZ Dr. Derin, Boulaaouin Zahnärzte Frankfurt" and "Derin, Boulaaouin"; the clinic's site does not link to TripAdvisor (checked 2026-10-05). [mvz-derin-boulaaouin-zahnaerzte-tripadvisor] [mvz-derin-boulaaouin-zahnaerzte-tripadvisor-2] | 0/0.5 |
| ✓ | Other review platforms jameda has a page for the practice at its address (1 review) and Dr Ismail Derin's page lists it (35 reviews); WhatClinic has a profile there with 2 verified reviews (checked 2026-10-02). [mvz-derin-boulaaouin-zahnaerzte-platforms] [mvz-derin-boulaaouin-zahnaerzte-platforms-2] [mvz-derin-boulaaouin-zahnaerzte-platforms-3] | 0.5/0.5 |
Medical Infrastructure
The range of publicly documented equipment and services. This measures documented availability, not clinical quality.
| ✓ | On-site X-ray [s1] | 2/2 |
| ✓ | CBCT (3D imaging) 3D-navigated implant planning. [s1] | 2/2 |
| ✓ | Implantology Immediate implants offered. [s1] | 2/2 |
| ✓ | Orthodontics Aligner therapy. [s1] | 2/2 |
| ✓ | Oral surgery [s1] | 2/2 |
| ✓ | Pediatric dentistry [s1] | 1.5/1.5 |
| ✓ | Emergency care [s1] | 1.5/1.5 |
| ✓ | Works with international patients Consultation offered in over 10 languages. [s1] | 2/2 |
Communication & Service
How easy it is to contact the clinic, get answers, and book - especially for international patients.
AI & Search Visibility
Whether the clinic is discoverable when patients search - including via AI assistants. Checked with fixed queries: "best dentist Germany", "English speaking dentist Germany", "dental implants Germany", "emergency dentist Germany", "Germany dental clinic for expats".
| ✗ | Mentioned for: best dentist Germany [sqBest] | 0/1 |
| ✗ | Mentioned for: English speaking dentist Germany [sqEng] | 0/1 |
| ✗ | Mentioned for: dental implants Germany [sqImp] | 0/1 |
| ✗ | Mentioned for: emergency dentist Germany [sqEmg] | 0/1 |
| ✗ | Mentioned for: Germany dental clinic for expats [sqExp] | 0/1 |
| ✓ | Structured data on website Home page HTML carries JSON-LD of schema.org type Dentist. [mvz-derin-boulaaouin-zahnaerzte-site] | 1.5/1.5 |
| ? | Google indexing quality | 0/2 |
| ✓ | Dedicated service pages [s1] | 1.5/1.5 |
Ranking leaders in AI answers
The queries above are this index's own check. The three leading clinics have also been measured in full: how often ChatGPT and Gemini name them when a patient asks them to recommend a dentist.
- #1KU64 Die Zahnspezialisten57.3 of 100View report → report in German
- #2Berlin Smile Zahnzentrum2.5 of 100View report → report in German
- #3The Urban Dentist0 of 100View report → report in German
Measured by Ansmeter, 9 October 2026. Ansmeter is an affiliated service. Its figure is not part of this rating and does not affect positions — scores change only when public data changes.
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: Registered — Landeszahnärztekammer Hessen (LZKH) Zahnarztsuche (practice address Zeil 65-69, 60313 Frankfurt) (LZKH Zahnarztsuche (open name search, no captcha); 'Derin' matched exactly: 'Dr. Ismail Derin, Zeil 65-69, 60313 Frankfurt'. Checked 2026-09-01.) [reg1]
Dentists & register entries (KZV / dental chamber)
| Dentist | Specialization | Register entry | Notes |
|---|---|---|---|
| Dr. Ismail Derin [s1] [reg1] | Oral surgery & practice management | not published | Confirmed on the public register of LZKH, which publishes no licence number. |
| Mohamed Boulaaouin [s1] | Aesthetics & practice management | not verified | — |
| Foojan Mohammadi [s1] | Oral surgery | 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
- Communication & Service: Response speed
- Communication & Service: English spoken
- Communication & Service: Pre-visit consultation possible
- AI & Search Visibility: Google indexing quality
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 | https://www.zahnarztteam-frankfurt.de/ |
|---|---|
| Phone | +49 69 21086180 |
| https://www.facebook.com/zahnarztteamfrankfurt | |
| Google Maps | Map listing |
| Address | Zeil 65, 60313 Frankfurt am Main |
Contact details are provided for identification only and may change; verify with the clinic directly.
Sources
| ID | Source | What it supports | Accessed |
|---|---|---|---|
| s1 | https://www.zahnarztteam-frankfurt.de/ | Team, services, hours, languages, contacts | 2026-09-01 |
| sm | https://www.google.com/maps/place/Dr.+Derin,+Boulaaouin+Dentists/@5… | Google rating 4.8 (467 reviews) as of 2026-09-01, address, geo, owner reply to review | 2026-09-01 |
| sqBest | search:best dentist Frankfurt | AI/search visibility scout 2026-09-01 | 2026-09-01 |
| sqEng | search:English speaking dentist Frankfurt | AI/search visibility scout 2026-09-01 | 2026-09-01 |
| sqImp | search:dental implants Frankfurt | AI/search visibility scout 2026-09-01 | 2026-09-01 |
| sqEmg | search:emergency dentist Frankfurt | AI/search visibility scout 2026-09-01 | 2026-09-01 |
| sqExp | search:Frankfurt dental clinic for expats | AI/search visibility scout 2026-09-01 | 2026-09-01 |
| reg1 | https://www.lzkh.de/patienten/zahnarztsuche | LZKH Zahnarztsuche name search for 'Derin' — matched | 2026-09-01 |
| mvz-derin-boulaaouin-zahnaerzte-platforms | https://www.jameda.de/gesundheitseinrichtungen/zahnarztteam-frankfu… | jameda practice page "Zahnarztteam Frankfurt Dr Derin, Boulaaouin Zahnärzte", Zeil 65, 60313 Frankfurt, telephone 069/210 86180 (the card's address and number): 5 of 5 from 1 patient review (dated 3 October 2023), read 2026-10-02 | 2026-10-02 |
| mvz-derin-boulaaouin-zahnaerzte-platforms-2 | https://www.jameda.de/profil/ismail-derin | jameda page of Dr. med. dent. Ismail Derin, practising at three addresses, one of them "Zahnarztteam Frankfurt Dr. Derin, Boulaaouin", Zeil 65, Frankfurt: 4.5 of 5 from 35 patient reviews, with his own welcome text naming the Frankfurt and Offenbach practices, read 2026-10-02 | 2026-10-02 |
| mvz-derin-boulaaouin-zahnaerzte-platforms-3 | https://www.whatclinic.com/dentists/germany/frankfurt/dr-derin-boul… | WhatClinic profile "Dr. Derin Boulaaouin Zahnärzte", Zeil 65, Frankfurt am Main 60313: 4.0 from 2 verified reviews, listed in WhatClinic's Frankfurt catalogue read 2026-10-02 | 2026-10-02 |
| mvz-derin-boulaaouin-zahnaerzte-site | https://www.zahnarztteam-frankfurt.de/ | Home page HTML read 2026-10-02: JSON-LD block with @type Dentist (alongside BreadcrumbList, Service, FAQPage) | 2026-10-02 |
| mvz-derin-boulaaouin-zahnaerzte-deepen | https://www.google.com/maps?cid=4247428653155724620&hl=en | Google listing "Dr. Derin, Boulaaouin Dentists" (Dentist, Cosmetic dentist, Dental clinic, Dental implants provider, Denture care center, Emergency dental service, Family service center), read 2026-10-02 in two review orders (newest, lowest-rated first): 4.8 from 468 reviews (1★ 15 / 2★ 1 / 3★ 1 / 4★ 14 / 5★ 437); 10 distinct reviews read, dated 2025-06-10 to 2026-09-26 | 2026-10-02 |
| mvz-derin-boulaaouin-zahnaerzte-tripadvisor | https://www.tripadvisor.com/TypeAheadJson?action=API&details=true&q… | TripAdvisor's own search, read 2026-10-05: 12 suggestions for "MVZ Dr. Derin, Boulaaouin Zahnärzte Frankfurt" (5 attractions, 7 hotels), none of them a dental practice in or near Frankfurt; 12 suggestions for "Derin, Boulaaouin" (5 attractions, 7 hotels), none of them a dental practice in or near Frankfurt; no listing for this clinic | 2026-10-05 |
| mvz-derin-boulaaouin-zahnaerzte-tripadvisor-2 | https://www.zahnarztteam-frankfurt.de/ | Clinic's website, home page read 2026-10-05: no link to a TripAdvisor page | 2026-10-05 |
Change History
| Date | Change |
|---|---|
| 2026-10-05 | TripAdvisor presence checked on 2026-10-05: no listing found for this clinic. |
| 2026-10-02 | Read 10 of the clinic's Google reviews on 2026-10-02: no repeated complaint, no suspicious review pattern. |
| 2026-10-02 | Website structure read on 2026-10-02: business structured data found. |
| 2026-10-02 | Presence on review platforms checked on 2026-10-02: jameda and WhatClinic review pages found. |
| 2026-09-01 | Initial research |
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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