About
“Evidence-based care tailored to each patient — taking the time to explain options and shared decisions.”
— Ralf Knickrehm-Messelken
Education & training
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2015–2021 MD · Medicine and Surgery
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2021–2025 Residency · Internist
Career & appointments
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2025-09–2026-08 Junior consultant
Licenses & insurance
Medical licenses
DE — Bundesärztekammer
Board certifications
European Board of Internist
Malpractice insurance:
AmTrust Europe · 4,000,000 EUR coverage · No claims on file
Procedures performed
| Procedure | Code | Lifetime count |
|---|---|---|
| GP consultation | 99213 | 2,424 |
| Annual physical exam | 99395 | 566 |
| Vaccination administration | 90471 | 1,414 |
| Minor procedure (skin) | 17110 | 2,865 |
Services & pricing
| Service | Duration | Modality | Price |
|---|---|---|---|
| New patient consultation (60m) | 60 min | in_clinic|telemed | 180.00 EUR |
| Follow-up consultation (30m) | 30 min | in_clinic|telemed|phone | 90.00 EUR |
| Vaccination administration | 30 min | in_clinic | 630.00 EUR |
| Minor procedure (skin) | 120 min | in_clinic | 720.00 EUR |
Office, team & in practice
Videos
Research & publications
h-index: 15 · i10: 5
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Long-term follow-up of Internist across DE
DOI: 10.2095/euroclin.2026.0 · PMID: 31890643 · cited by 120
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Validation of clinical scoring in Internist
DOI: 10.7992/euroclin.2025.1 · PMID: 37753805 · cited by 114
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Long-term follow-up of Internist across DE
DOI: 10.7395/euroclin.2024.2 · PMID: 31560257 · cited by 52
Invited talks
- Practical updates in Internist European Annual Congress (Internist) · Vienna · 2024 · invited
- Single-centre experience in Internist National Society Meeting · duisburg · 2023 · oral abstract
Awards & memberships
Awards
- 🏆 Top-rated Internist — duisburg · EuroClinics Patient Choice · 2025 · regional
Society memberships
- WONCA Europe — Family Doctors — Member · Since 2026
- national college of family doctors — Member · Since 2026
- European Union of Medical Specialists (UEMS) — Member · Since 2026
Articles by this doctor
- Patient education Patient guide to Internist
- Awareness When should you see a internist?
For international patients
- Coordinator
- Patient liaison · jameda.ralf.knickrehm.messelken@euroclinics.example
Location
1 tagPatient reviews
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Recent reviews
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★★★★★ ✓ Verified Very thorough first visit — explained every step. Booking was easy and the staff were welcoming.
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★★★★★ ✓ Verified Took time to listen and reviewed all my previous results. I would absolutely recommend.
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★★★★☆ ✓ Verified Professional and knowledgeable. Wait on the day was a bit long, otherwise excellent.
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