Medical team of Private Practice Düsseldorf

Specialist experience in internal medicine, pulmonology, general medicine, nutritional medicine and preventive private care.

PB Internal Medicine · Pulmonology · Sleep Medicine

Dr. med. Paul-Georg Behler

Specialist in Internal Medicine · Pulmonology · Sleep Medicine
Private Practice Düsseldorf

Dr. Paul-Georg Behler is a specialist in internal medicine with advanced expertise in pulmonology and sleep medicine. His clinical career has been defined by a commitment to thoroughness – to looking beyond the presenting symptom and understanding the full physiological picture.

At Königsallee 12, he offers a private practice environment where extended appointments are the standard, diagnostics are comprehensive, and every treatment plan is truly individualised. Patients are seen by appointment only, ensuring that each consultation receives the undivided attention it deserves.

His particular interest in sleep medicine reflects a conviction that night-time physiology is as clinically important as daytime function – and that overlooking it means missing a significant part of the health picture. He brings this integrated perspective to every consultation.

Doctor medic Diana-Mihaela Behler, MBA

  • Specialist in General Medicine and Nutritional Medicine
  • MBA in International Healthcare Management
  • Focus: prevention, cardiometabolic medicine, women’s health, weight management, Executive Health & Longevity
  • Languages: German, English, French, Spanish

Dr. med. Paul-Georg Behler

  • Specialist in Internal Medicine, Pulmonology, Sleep Medicine and Allergology
  • Lecturer at the Medical Faculty of Düsseldorf
  • More than 30 years of senior clinical experience
  • Focus: complex internal medicine, pulmonary disease, sleep medicine, allergology and metabolic prevention
  • Languages: German, English, Dutch, French
“Private medicine means more than a different billing model. It means the time to do the job properly.”
Internal Medicine Pulmonology Sleep Medicine Preventive Medicine Nutritional Medicine

Private medicine done properly.

Three principles that define what we offer at our Düsseldorf practice – and why they matter.

01

Time as medicine

Extended appointments are not a luxury – they are a medical necessity. Proper diagnosis requires listening, examining, and thinking. We build in the time to do all three.

02

Systemic thinking

The body does not respect organ boundaries, and neither do we. We look for patterns across systems, consider the whole physiological picture, and resist the temptation to reduce complex problems to simple diagnoses.

03

Prevention over reaction

The best clinical intervention is the one that renders another unnecessary. We are committed to identifying risk early, acting on it thoroughly, and measuring results – not just managing conditions, but working to resolve them.

Königsallee 12, Düsseldorf

Our practice is located at the heart of Düsseldorf – easily accessible from across the region.

Königsallee 12

40212 Düsseldorf

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Medical expertise in Düsseldorf

Specialist experience with time for individual questions

Dr. med. Paul-Georg Behler contributes specialist experience in internal medicine, pulmonology and related fields. Doctor-medic Diana-Mihaela Behler contributes general medical and nutritional medical expertise. The Düsseldorf practice focuses on appointment-based private medical consultations, prevention and structured interpretation of findings.

Professional responsibility: Medical information is reviewed by the physicians named on this website. Last updated: July 2026.

Ready for medicine with time?

Book your private appointment at our Düsseldorf practice – by phone or email.