Mahmut Doğan, M.D.

Mahmut Doğan, M.D., was born in Germany in 16.08.1983. Following graduation from high school in Denizli in 2001, he started the medical education in Istanbul School of Medicine of Istanbul University in the same year. Following six-year medical education, he had his General Surgery residency at İstanbul Bakırköy Dr. Sadi Konuk Teaching and Research Hospital from 2008 to 2013. After he completed the conscription at Ağrı State Hospital, he started residing in Istanbul again in 2013. Mahmut Doğan, M.D., is married with two children and has good command in English and German.

Having interest to general surgery department during his medical education, Dr. Doğan started on his the first and only preference, the general surgery residency. He was awarded the title of general surgeon in 2013. He has worked with renown obesity surgeons of Turkey and had the chance of participating in numerous surgeries throughout his residency. He was a member of the team performing robotic-assisted surgery (Da vinci surgical system) for the first time in Turkey and thus, he participated in almost 100 robotic-assisted surgeries. Having significant experience in laparoscopic surgery, Dr. Doğan is primarily dealing with surgical and non-surgical treatment methods (Gastric Botox, intra-gastric balloon) of obesity.


Steps to be followed by patient who want to undergo surgery;

If you have any questions about sleeve gastrectomy, you will be informed about treatments by our coordinator after you contact our clinic through our communication channels. If you desire, you will also have the chance to ask all your questions in an online/phone consultation with our doctors. Next, your personal health details are evaluated in detail by our doctors to check whether you are a good candidate for the surgery. Finally, the best surgical technique for you will be decided following all above mentioned evaluations.

Welcoming at Airport and Hospitalization

Our international patients will be transferred with special vehicles from the airport in Istanbul to our clinic for preliminary evaluation by Dr. Mahmut Doğan.


After you are hospitalized under supervision and guidance of our clinic assistant, we will complete various examinations related to the sleeve gastrectomy.

You will be prepared step-by-step for the surgery and we will perform following examinations to review your eligibility:

  • Chest X-ray
  • Pulmonary function test
  • Electrocardiography
  • Blood tests
  • Ultrasound
  • Endoscopy

Following these examinations, you will be evaluated by Cardiologist, Internist and Anesthesiologist.


Since your examinations are completed, you are, now, ready for sleeve gastrectomy.

Estimated duration of surgery;

Bariatric surgeries last approximately for following durations;

  • Sleeve gastrectomy 1 hour,
  • Gastric bypass 2 hours,
  • Intra-gastric balloon and Gastric Botox approximately 15 minutes

You will need to be monitored at the hospital for a certain period of time in order to review reaction of your body to the surgery and to follow up your health closely immediately following the sleeve gastrectomy.

  • For sleeve gastrectomy and gastric bypass, 2 to 3 days,
  • For intra-gastric balloon and Gastric Botox, you will need tos tay at the hospital for 1 to 2 hours.

Discharge from the Hospital

You surgery is successfully performed and you are ready to be discharged. Your doctor and dietician will check and inform you about your new postoperative life.


After you are discharged, you may contact us 24/7 through all our communication channels for all your questions about your eating pattern or your surgery.