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med. Rainer Siewert

Internist Nephrologe Endokrinologe Diabetologe Bergisch-Gladbach

med. Rainer Siewert

10 years of experience

5,089+
Patients seen
10
Years in practice
8
Publications

PROFILE SUMMARY

About Dr. med. Rainer Siewert at a glance

Dr. med. Rainer Siewert is an Internist Nephrologe Endokrinologe Diabetologe practitioner based in Bergisch-Gladbach, Germany, practising at Universität Heidelberg Teaching Hospital. Procedures focus on gp consultation, annual physical exam, vaccination administration, minor procedure (skin). Educated at Universität Heidelberg (MD, 2012). Serves patients in Bergisch-Gladbach, Germany and the surrounding area.

VERIFIED PHYSICIAN PROFILE · UPDATED MAY 2026

About

“Evidence-based care tailored to each patient — taking the time to explain options and shared decisions.”

— med. Rainer Siewert

Education & training

  1. 2006–2012 MD · Medicine and Surgery
    Universität Heidelberg, bergisch-gladbach (DE)
  2. 2012–2016 Residency · Internist Nephrologe Endokrinologe Diabetologe
    Universität Heidelberg, bergisch-gladbach (DE)

Career & appointments

  1. 2016-09–2017-08 Junior consultant
    Universität Heidelberg Teaching Hospital — Internist Nephrologe Endokrinologe Diabetologe

Licenses & insurance

Medical licenses

DE — Bundesärztekammer
#DE-574827 active · expires 2028-12-31

Board certifications

European Board of Internist Nephrologe Endokrinologe Diabetologe
#EB-4B217C03 · issued 2017 · renewal 2027
Malpractice insurance: Allianz Professional · 1,000,000 EUR coverage · No claims on file

Procedures performed

ProcedureCodeLifetime count
GP consultation 99213 2,534
Annual physical exam 99395 2,080
Vaccination administration 90471 2,624
Minor procedure (skin) 17110 2,063

Services & pricing

ServiceDurationModalityPrice
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 120 min in_clinic 270.00 EUR
Minor procedure (skin) 30 min in_clinic 360.00 EUR

Office, team & in practice

Dr. med. Rainer Siewert
HEADSHOT
Dr. med. Rainer Siewert in consultation
IN OFFICE
Dr. med. Rainer Siewert with the team
WITH TEAM
Dr. med. Rainer Siewert at a conference
CONFERENCE

Videos

introduction · 126s
Meet Dr. med. Rainer Siewert

Research & publications

h-index: 7 · i10: 9

  1. Long-term follow-up of Internist Nephrologe Endokrinologe Diabetologe across DE
    Dr. med. Rainer Siewert, et al. · European Journal of Medicine, 2026
    DOI: 10.4039/euroclin.2026.0 · PMID: 38743414 · cited by 6
  2. Validation of clinical scoring in Internist Nephrologe Endokrinologe Diabetologe
    Dr. med. Rainer Siewert, et al. · European Journal of Medicine, 2025
    DOI: 10.2735/euroclin.2025.1 · PMID: 37660713 · cited by 20
  3. Long-term follow-up of Internist Nephrologe Endokrinologe Diabetologe across DE
    Dr. med. Rainer Siewert, et al. · European Journal of Medicine, 2024
    DOI: 10.9086/euroclin.2024.2 · PMID: 33702763 · cited by 130

Invited talks

  • Practical updates in Internist Nephrologe Endokrinologe Diabetologe European Annual Congress (Internist Nephrologe Endokrinologe Diabetologe) · Vienna · 2024 · invited
  • Single-centre experience in Internist Nephrologe Endokrinologe Diabetologe National Society Meeting · bergisch-gladbach · 2023 · oral abstract

Awards & memberships

Awards

  • 🏆 Top-rated Internist Nephrologe Endokrinologe Diabetologe — bergisch-gladbach · EuroClinics Patient Choice · 2025 · regional

Society memberships

  • WONCA Europe — Family Doctors — Member · Since 2017
  • national college of family doctors — Member · Since 2017
  • European Union of Medical Specialists (UEMS) — Member · Since 2017

Articles by this doctor

  • Patient education Patient guide to Internist Nephrologe Endokrinologe Diabetologe 2026-03-05 · 8 min read
  • Awareness When should you see a internist nephrologe endokrinologe diabetologe? 2026-01-06 · 10 min read

For international patients

Coordinator
Patient liaison · jameda.rainer.siewert@euroclinics.example

Location

1 tag

Patient reviews

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Recent reviews

  • ★★★★★ ✓ Verified
    Very thorough first visit — explained every step. Booking was easy and the staff were welcoming.
    Anna B.
  • ★★★★★ ✓ Verified
    Took time to listen and reviewed all my previous results. I would absolutely recommend.
    Marco V.
  • ★★★★☆ ✓ Verified
    Professional and knowledgeable. Wait on the day was a bit long, otherwise excellent.
    Helena F.

SPECIALTIES & PROCEDURES

Dr. med. Rainer Siewert's Areas of Specialty

Each specialty below reflects the conditions and procedures Dr. med. Rainer Siewert treats, with the size of the national pool of Germany doctors offering the same care.

Internist Nephrologe Endokrinologe Diabetologe

Dr. med. Rainer Siewert is one of 117 internist nephrologe endokrinologe diabetologe doctors indexed in Germany. Browse internist nephrologe endokrinologe diabetologe doctors in Germany →

LOCAL CARE CONTEXT

Why local healthcare in Bergisch-Gladbach matters

Medical practice in Germany is governed by country-specific licensing, professional standards, and patient-safety regulations. Practitioners listed here are registered with the relevant Germany medical authority and operate within national rules on scope of practice, prescribing rights, and continuing professional development. Care delivered in Bergisch-Gladbach carries the additional benefits of local language support, in-person follow-up, and direct coordination with regional hospitals and labs. A verified profile means EuroClinics has cross-checked the practitioner or clinic against an official source (national medical register, public licence database, or the practitioner themselves), and that the data shown here matches that source as of the last verification date above.

Looking for additional providers? all doctors in Bergisch-Gladbach or all doctors in Germany.

Frequently asked questions

Quick answers to the questions patients ask most. The same answers are surfaced to AI assistants via structured data.

  • What does Dr. med. Rainer Siewert specialise in?

    Dr. med. Rainer Siewert specialises in Internist Nephrologe Endokrinologe Diabetologe in bergisch-gladbach, DE.

  • What conditions does Dr. med. Rainer Siewert treat?

    Dr. med. Rainer Siewert treats conditions within Internist Nephrologe Endokrinologe Diabetologe. View the full conditions-treated list on the profile.

  • Where does Dr. med. Rainer Siewert practise?

    Dr. med. Rainer Siewert practises in bergisch-gladbach, DE. The profile page lists all practice addresses, phone numbers, and clinic affiliations.

  • How do I book an appointment with Dr. med. Rainer Siewert?

    Use the "Request a booking" button on the profile to send an appointment request. Most appointments are confirmed within 24 hours; many slots are bookable instantly.

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