Our Doctors
We pledge to dedicate every resource we have to fulfill our promise of delivering exceptional service to our patients.

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By Condition / Disease
By Department

Dr. Ashraf Kamel
Urology & Andrology

Dr. Ralf Herwig
Urology & Andrology

Dr. Kai Uwe Köhrmann
Urology & Andrology

Dr. Martin Sillem
Obstetrics & Gynecologist

Dr. Gerald Zimmermann
Orthopedic Surgeon

Dr. Marwan El-Khazen
Orthopedic Surgeon

Dr. Liselotte Mettler
Obstetrics & Gynecologist

Dr. Maria Nikolopoulou
Obstetrics & Gynecologist

Dr. Khaldoun Sharif
Obstetrics & Gynecologist

Dr. Diethart Bayer
General Surgery & Proctology

Dr. Mohamed Ghoz
Dermatology

Dr. Alaeddin Saghir
Endocrinology Treatment
Latest News and Blogs
We partner with a wide range of insurance providers to offer access to highly specialized care for you and your family.

September 28, 2025
Are You a Candidate for Sclerotherapy? Key Factors Doctors Consider
Sclerotherapy is a medical procedure used to treat spider veins and smaller varicose veins....

September 25, 2025
Anal Fissures: Understanding Causes and Effective Non-Surgical Treatment
Anal fissures are a common but often overlooked condition that can cause significant discomfort....

September 22, 2025
High Cholesterol: Separating Fact from Fiction and Taking Control of Your Heart Health
High cholesterol is one of the most common yet misunderstood health concerns worldwide....

September 20, 2025
PCOS Treatment in Dubai: Diagnosis, Symptoms & Lifestyle
The symptoms of PCOS vary, but some of the most common signs include...

September 16, 2025
Silent Signs of a Thyroid Imbalance: What You Need to Know
A thyroid imbalance occurs when the gland produces either too much thyroid hormone...

September 14, 2025
A FODMAP Diet: Is It Right for You? Expert Advice on Managing Digestive Discomfort
FODMAP diet—a scientifically researched approach designed to improve digestive health...
Our Clients Testimonials
I will high recommend German Medical Center, as they are trustworthy ,supportive, unwavering dedication and genuine concern. The nurses really excellent and compassions, I am soo grateful to everyone who helped me a-lot through out my surgery. Mr.Rashid you are really incredible and thank you so much for your help and support.
Hodroj Remmel
Helpful, friendly 😀 smiles , doctor explain everything more than more and give advice . I like follow up from clinic.
Esam Alnajjar
I visited the clinic many times for various situations, I am always grateful to the doctors and attendants, for many years I have been turning to them, thank you for the good caring service
Natalia Fedotova
I would like thank Prof.Zimmermann and the clinic and the staff…. I was waiting for this moment that my mom to be fine. I will definitely recommend German Medical Center
Asma Atfeesh
I don't know what to say. First of all, I would like to thank Dr. Marwan for his advice and treatment. Before I visited the clinic, I was suffering from left shoulder pain that I can't sleep at night, after I got a treatment I feel much better and no pain anymore.
Also, many thanks for all staff and his nurse.
Mohamed Binsafwan
Professor Sillem was the first doctor to diagnose my endometriosis and removed it surgically. I was pleasantly surprised by the success of the surgery, especially on my bladder.
During a laparoscopy, a septum was also discovered and removed in a separate operation. This procedure, too, was performed very well in my opinion.
Professor Sillem consulted me thoroughly before each operation, and I felt I received excellent medical care.
Clara Hoffmann
Went for lipoma removal and had been a great experience: Dr Bayer and his staff are the perfect surgical partner and care advisor. Highly recommended. The actual intervention and the followup were very smooth and worry-free. Thank you very much indeed.
Silvia at Fokus
I had a surgery in this clinic with Dr. Mettler, everything went really great. Also had a chance to visit Dr. Maria and had a great experience. Highly recommended for everyone looking for a treatment.
Ievgeniia Rynzhuk
Very professional staff and very experienced Drs, Dr Ralf very professional special thanks to Mishita, Islam and Joan and finalyJanlile .. amazing well organised staff.. well done
Samer Othman
Prof. Dr. Sillem operated on my bladder for endometriosis for the first time in the fall of 2016, and in early March 2025, he removed my uterus. I feel very well looked after by him – he takes his time, listens, and addresses my concerns. The aftercare for both surgeries was also excellent – he checked on me several times after the surgery. I always feel in good hands with him; I highly recommend him!
M. Schneider
Amezing place amezing staff also specially the doctors are really nice they treat very well thank you so much .I was meet with doctor ashraf Kamal Aly and doctor mohamed they are really nice friendly I wanna say thanks to buth of them 🙏🙏
S. Hussain