NINE ARMS

The network

Leading doctors. Personally chosen.

Every specialist is selected by our founders — for expertise, reputation and the way they treat people.

Hover over a portrait to see credentials.

Pencil sketch of Dr. Helena Brandt

Cardiology · Munich

Dr. Helena Brandt

Preventive cardiology and cardiac imaging.

  • FESC – Fellow, European Society of Cardiology
  • Head of Preventive Cardiology, university hospital
  • 120+ peer-reviewed publications

24 years of experience

Dr. Helena Brandt

Cardiology

Pencil sketch of Dr. Jonas Keller

Orthopaedics · Zurich

Dr. Jonas Keller

Knee and shoulder surgery for athletes and active people.

  • Board-certified orthopaedic surgeon (FMH)
  • Surgeon to Olympic and professional athletes
  • 2,500+ knee & shoulder procedures

18 years of experience

Dr. Jonas Keller

Orthopaedics

Pencil sketch of Dr. Sofia Marin

Paediatrics · Vienna

Dr. Sofia Marin

Guides parents through childhood illness and travel health.

  • Specialist in paediatrics & adolescent medicine
  • Travel medicine certificate (ISTM)
  • Senior physician, children's hospital

12 years of experience

Dr. Sofia Marin

Paediatrics

Pencil sketch of Prof. Dr. Albert Rhode

Neurology · Berlin

Prof. Dr. Albert Rhode

Headache, sleep and movement disorders.

  • Full professor of neurology
  • Former chair, national headache society
  • Founder of a leading sleep centre

32 years of experience

Prof. Dr. Albert Rhode

Neurology

Pencil sketch of Dr. Clara Vidal

Dermatology · Barcelona

Dr. Clara Vidal

Skin cancer screening and medical dermatology.

  • Board-certified dermatologist (EADV member)
  • Skin cancer screening specialist
  • Lecturer in dermato-oncology

16 years of experience

Dr. Clara Vidal

Dermatology

Pencil sketch of Dr. Martin Lenz

Internal Medicine · Frankfurt

Dr. Martin Lenz

Coordinates complex cases and long-term prevention plans.

  • Specialist in internal medicine & gastroenterology
  • Physician to executives and public figures
  • Longevity & prevention programme lead

21 years of experience

Dr. Martin Lenz

Internal Medicine

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