Gerhard Prager

years of experience

Gerhard Prager

Specialization: General surgeon
29 years of experience
accreditations:
Speaks:
German, English
Workplace: Austria, Vienna, Wiener Privatklinik
Head of the Obesity and Metabolic Surgery Program
The doctor is a distinguished general and visceral surgeon with over 25 years of experience, specializing in bariatric and metabolic surgery, as well as complex gastrointestinal and abdominal procedures. He graduated from the University of Vienna and trained at the Medical University of Vienna, focusing on minimally invasive and laparoscopic techniques.
He serves as a senior consultant at Wiener Privatklinik, performing advanced procedures for obesity, reflux disease, hernias, and gastrointestinal cancers. His academic contributions include extensive research on metabolic regulation and bariatric surgery outcomes, and he has been a keynote speaker at international conferences.

4.7

Excellent score

20 patient verified reviews

1 star

2 stars

3 stars

15%

4 stars

10%

5 stars

70%

Patient reviews

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1-5 of 20 reviews

Anonymous • Pancreatic cancer

Ukraine

Sep 26, 2019

Verified review.

the trip to the clinic was usually. I got advice, paid a doctor, translator and intermediary, did not receive receipts for these payments. But I don’t understand what the bonus actually consisted of, which I ordered through Bookimed and how to really get it. After this trip, I again received a letter about the bonus, but, in my opinion, these letters really do not cost anything.

About Bookimed service

As I wrote in the review, I did not understand what exactly the bonus promised by Bookimed was and how you can actually use it.

Ирина • Consultation rheumatologist

Kuwait

Oct 25, 2022

Verified review.

I was very satisfied with the level of the doctor's consultation, I hope the treatment will also be effective, but the organization wants the best. I've been waiting for a written doctor's opinion for a week now. Consultations and examinations did not follow the schedule.

About Bookimed service

Where are my examination results and the doctor’s conclusion?

Anonymous • Online Consultation with Oncologist

Romania

Mar 28, 2024

Verified review.

I had a terrible experience. Dr. Zielinski was dismissive and rushed me, he hasn't answered my questions and he asked me for more tests in order to speak about treatment plans when I was told previously that I didn't need any tests in order to proceed with the consultation and receive a treatment plan. He didn't bother to explain the disease or treatment options. I was looking forward to speak to him and I put so much hope. I needed someone to explain and guide me. I was left with such a bed feeling after the consultation. No empathy and no professionalism. Bookimed apologise but they said that they can't do anything because I paid directly the clinic, even if they are the intermediary they don't take responsibility, so be very careful when booking any services. I wasted 400 euros for 10 minutes that I was trying to make a few questions in order to get some value for the money but the only thing I got was disappointment, frustration, stress and time waste for arguing. I asked for at least to have some questions asked in writing so I could get something back for my money, but they refused, and they said that the consultation was compleated. In the first place, they said that I had a second consultation for free because it wasn't compleated, and then they said it was a mistake and the consultation was compleated. Please be careful where you spend your money and put your hopes because they don't care about taking advantage of ill people in order to make money. Probably are not all the same but my experience was awful and I am very disappointed. Some become doctors because they want to help people and others have no feelings or empathy. I hope this helps whoever is reading and I hope you find a better option than I did with a doctor that cares and will help you. God bless.

Karlo Tomašević • Consultation with a cardiologist

Croatia

Nov 11, 2023

Verified review.

A great advantage and relief is that before the actual payment and the continuation of the treatment, the doctor's CV is offered, it is not that you are forced to cooperate with a certain one

From the very beginning, things went smoothly, clearly and quickly. Very pleasant conversation, no waiting, clear information about payment and with, the outcome exactly as agreed. A great advantage and relief is that before the actual payment and the continuation of the treatment, the doctor's CV is offered, it is not that you are forced to cooperate with a certain one.

Easy communication and agreement

Client • Knee Arthroscopy

Romania

Jun 22, 2025

Verified review.

the core of it is the desire to help people who want to regain their health as much as possible back, the emotional intelligence and a necessary level of empathy and expertise which everyone from the clinic showed me

My opinion is that, even though it's a business the core of it is the desire to help people who want to regain their health as much as possible back, the emotional intelligence and a necessary level of empathy and expertise which everyone from the clinic showed me.

Interactions with the clinical staff.

About Bookimed service

Thanks to Bookimed I found the right clinic for fixing my health issue. The overall support and the informations given to me.

Doctor's services

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Certifications & accreditations

International Federation of Surgery for Obesity and Metabolic Disorders

American Society for Metabolic and Bariatric Surgery

Qualifications

Univ. Prof. Dr. Gerhard Prager is a renowned Austrian general and visceral surgeon, internationally recognized for his expertise in bariatric (obesity) and metabolic surgery, as well as complex gastrointestinal and abdominal procedures. With more than 25 years of experience in surgery and academic medicine, he is one of Europe’s leading authorities in the surgical treatment of obesity and metabolic disorders.

He studied medicine at the University of Vienna, graduating in the 1990s, and began his surgical training at the Medical University of Vienna, where he developed an early interest in minimally invasive and laparoscopic techniques. His commitment to improving the health and quality of life of patients with obesity and gastrointestinal diseases has guided his entire professional path.

1990s – Completed medical studies and residency in general and visceral surgery at Vienna General Hospital (AKH).

2000s – Specialized in bariatric and metabolic surgery, performing procedures such as gastric bypass, sleeve gastrectomy, and revisional bariatric operations.

2010s – Appointed Professor of Surgery at the Medical University of Vienna and became Head of the Obesity and Metabolic Surgery Program at the Department of General Surgery.

Today – Serves as senior consultant at Wiener Privatklinik, performing advanced laparoscopic and minimally invasive procedures for obesity, reflux disease, hernias, and gastrointestinal cancers.

Prof. Prager’s scientific work has focused on metabolic regulation, hormonal mechanisms in obesity, and long-term outcomes of bariatric surgery. He has published extensively in leading medical journals and has been a keynote speaker at numerous international conferences.

A founding member of several European bariatric surgery associations, he has helped develop guidelines for obesity treatment and multidisciplinary patient care. Known for his surgical precision, academic excellence, and empathetic approach, Prof. Prager continues to advance modern metabolic and gastrointestinal surgery, helping patients achieve lasting health improvements through innovative and individualized care.

Gerhard Prager

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