CAR T-cell Therapy by Mayo Clinic-Trained Hematologist at JCI Center
$200,000
/ Omur Gokmen Sevindik
12
years of experience
Omur Gokmen Sevindik
- Specialization: Hematologist
- 12 years of experience
- Speaks:English, Turkish
- Online consultations: available
- Workplace: Turkey, Istanbul, Istanbul Florence Nightingale Hospital
- Author of 18 articles in international peer-reviewed journals and presenter at 26 international scientific conferences.
Dr. Omur Gokmen Sevindik is a hematologist at Istanbul Florence Nightingale Hospital. He completed a fellowship at the Mayo Clinic, a top-ranked medical center in the US. Dr. Sevindik specializes in treating blood cancers like leukemia and lymphoma. He works at a JCI-accredited facility that treats 300,000 patients annually.
- Performs allogeneic and haploidentical stem cell transplantations.
- Authored 18 articles in international peer-reviewed journals.
- Presented research findings at over 25 international scientific conferences.
- Treats complex conditions including myeloma, aplastic anemia, and thrombocytopenia.
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Learn more about reviews.1-5 of 20 reviews
Мария • Endometriosis
Oct 16, 2024
Prof
Hi, I'm Cella, and I’m living in Bali, Indonesia. I’d like to share an honest review based on my experience of finding a medical coordinator, a doctor, and a hospital for my case. I was recently diagnosed with an ovarian cyst and stage 4 endometriosis, which required surgery as soon as possible. I was initially hospitalized in Bali, but the doctor there suggested I look for a better-equipped hospital as they didn’t have the necessary facilities to perform my surgery.
It wasn’t easy to find the right care on a small island like Bali. Thankfully, my best friend helped me connect with a medical manager from Bookimed. That’s how we found Alisher, the medical manager and Prof. Dr. A Cem Iyibozkurt from Florence Nightingale Hospital in Istanbul.
We arranged an online consultation with the doctor, which was free of charge, I already have all my medical records and MRI results before an online consultation, I’ve prepared everything to speed up the process. and within a week, they scheduled my laparoscopic robotic surgery. Alisher did an excellent job coordinating everything, and I couldn’t be happier with him. Prof. Dr. Cem Iyibozkurt is an amazing doctor, highly experienced, and well-known for his expertise in the field.
The hospital itself was fantastic—the nurses and staff took great care of me. I’m really grateful for the smooth process, and I highly recommend them to anyone who may be in a similar situation and looking for this kind of care and has similar situation as mine.
Iryna Gumenchuk • Brain tumor removal
United States of America
Jul 16, 2025
We felt fully confident knowing we were in the hands of one of the best in his field
World-Class Neurosurgical Care and Compassion
We are profoundly grateful for the exceptional care provided by Professor Ilhan Elmaci. His expertise, professionalism, and compassionate approach were evident from our very first meeting. Professor Elmaci performed the surgery to remove a medulloblastoma with extraordinary precision and care, and we felt fully confident knowing we were in the hands of one of the best in his field. Beyond his remarkable surgical skill, Professor Elmaci took the time to explain each step of the process with clarity and patience. He was always available to answer questions and offer reassurance, treating both the patient and our family with deep empathy and respect.
A heartfelt thank you to Coordinator Alisher, who supported us at every step. He was always responsive, attentive, and truly dedicated to the patient’s well-being. From organizing the transfer and handling all special requirements to keeping the family updated and arranging medical needs, he made a difficult time much more manageable.
The hospital staff was professional, kind, and caring throughout. We deeply appreciate the high level of expertise and personal attention that made all the difference in this journey.
About Bookimed service
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Excellent Support and Coordination by Bookimed
We are very thankful to Bookimed for their outstanding support in organizing the entire process of surgery and treatment. From the very beginning, their team was professional, responsive, and truly dedicated to helping us find the best medical care possible.
They guided us through every step — from selecting the right hospital and specialist to arranging the logistics of travel, appointments, and treatment. Thanks to Bookimed, we were connected with Professor Ilhan Elmaci, an exceptional neurosurgeon, and received world-class care.
A special thanks to Coordinator Alisher, who was with us every step of the way. He handled all the details, ensured smooth communication between the hospital and our family, and made sure the patient’s needs were fully met. His commitment, compassion, and constant availability gave us comfort and confidence throughout this challenging time.
We highly recommend Bookimed to anyone seeking reliable, efficient, and compassionate medical coordination. They truly made a difference in our experience.
Zvonimir • Immunotherapy
Croatia
May 15, 2025
Her level of empathy was touching
My request was for a specific treatment for my condition, which I believe was triggered by COVID or vaccine-related complications. The treatment itself is relatively new and not widely available; however, the doctor Faturanız Hazırdır was open to considering my request, which was a decisive factor in choosing this hospital. Her level of empathy was touching.
When I arrived, I received outstanding support from Aliser Durdiyev, who coordinated the entire process — from reception and medication procurement to scheduling the treatment.
None of this would have been possible without Hanna Karvatska, who connected all of us who has deep personal and professional connection with people here, and I’m deeply grateful to her, Alisar, and the doctor for their support and professionalism. And special thanks for the empathy from all three people, the teamwork they created to get me what we all believe could be the best treatment.
About Bookimed service
Hanna is a remarkable individual with a big heart, dedicated to connecting patients with top-tier doctors and medical professionals across various countries. Her extensive network ensures that every partner and connection goes the extra mile to meet patient needs without hesitation.
Aliser is a young but already experienced medical advisor. I was positevley surprised with approach. One of the most critical aspects of arranging medical treatment abroad is navigating logistics in an unfamiliar country. This is where Aliser's proactive approach truly stands out. His exceptional energy, personal connections, and unwavering curiosity to find the best solutions were decisive factors in my positive experience.
Together, Hanna and Alisar helped to oerganise care and coordination, making the complex process of international medical treatment seamless and patient-focused.
Anonymous • Hydrocephalus
Turkmenistan
Apr 14, 2025
I recommend from the bottom of my heart
We were diagnosed with internal and external hydrocephalus in a newborn. While searching for clinics, I accidentally came across the Bookimed platform. They immediately responded to my request and assigned a personal medical coordinator of the platform Olga Romaniuk. Very responsible, always in touch, she competently selected us a clinic florence ningtingale hospital and signed us up for an online consultation with Professor Ilhan Elmachi. After that we were assigned a manager of this clinic for online consultation Alisher, (by the way, he speaks several languages, including Turkmen, which was a big plus for us). Alisher is also very responsible, always in touch, selects convenient for us time for consultation, helped us to hold an online meeting without delays and interruptions. I am very satisfied with the work of Elmachi docor. All questions were answered. Special thanks to Elmachi's translator 🫶🏻. I recommend from the bottom of my heart
About Bookimed service
I found Bookimed by chance when I was searching for top clinics in Turkey on google. we were assigned a personalised medical coordinator, bookimed Olga. Thank her very much for signing us up to Ilhan Elmaci (also one of the best neurosurgeons in Turkey). Polite, helpful, punctual ❤️. The Bukimed platform itself is very informative, lots of clinics and reviews 👍
Anonymous • Lobectomy
United Kingdom
Feb 22, 2025
Professor Alper Toker is an outstanding doctor, professional, very knowledgeable
The team was great. Professor Alper Toker is an outstanding doctor, a true professional, and extremely knowledgeable. His team is perfectly organized, ensuring that everything runs smoothly.
The nurses were incredibly attentive and compassionate, providing excellent care and support throughout the entire process. They were always available to assist with any needs, making sure that we were comfortable and well-informed at all times.
From the initial consultation to the final stages of care, the entire experience was handled with **expertise and professionalism**. We are truly grateful for the dedication and hard work of Professor Alper Toker and his exceptional team.
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Doctor's services
- Chemotherapy
- Biological therapy
- Allogenic bone marrow transplantation from an unrelated donor
- Lymphoma chemotherapy
- Haploidentical Stem Cell Transplantation
- Leukemia chemotherapy
- Allogenic bone marrow transplantation from a related donor
- Bone marrow transplantation
- MRI of one area
- Biopsy
- CT (computer tomography)
- HLA-typing
- Ultrasound
- Tumor Marker Blood Test
- Bone marrow biopsy
- Comprehensive diagnosis of lymphomas
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Qualifications
Omur Gokmen Sevindik is a hematologist-oncologist specializing in bone marrow transplantation and blood cancers. He completed training at Mayo Clinic in the USA. This specialist has published 18 articles in international peer-reviewed journals.
Specialization and Treatment Approach
Dr. Sevindik treats complex hematological malignancies and uses cellular therapies. He performs various stem cell procedures to treat aggressive blood disorders. The doctor treats systemic conditions using targeted biological therapies and chemotherapy protocols.
Procedures Performed
- Allogenic bone marrow transplantation from related and unrelated donors
- Haploidentical stem cell transplantation — a procedure using healthy, blood-forming cells from a half-matched donor to replace diseased bone marrow
- Bone marrow biopsy and HLA-typing — a laboratory test used to match patients with bone marrow donors
- Leukemia and lymphoma chemotherapy
- Biological therapy
Conditions Treated
- Acute lymphoblastic leukemia (ALL) and other leukemias
- Myeloma
- Hodgkin's and Non-Hodgkin's lymphoma
- Burkitt's and follicular lymphoma
- Aplastic anemia and thrombocytopenia
Work Experience
- 2024 – Present: Hematologist-oncologist at Istanbul Florence Nightingale Hospital
- 2017 – 2024: Specialist at Bağcılar Medipol University Hospital
- 2015 – 2017: Physician at Fırat University
- 2014 – 2015: Clinical training at the Mayo Clinic, USA
Education and Training
- 2015 – Dokuz Eylül University, Medical Faculty – Specialization in Internal Medicine and Hematology
- 2010 – Dokuz Eylül University, Medical Faculty – Residency in Internal Medicine
- 2005 – Hacettepe University, Medical Faculty – Medical Degree
Research and Publications
Dr. Sevindik contributes to international hematology research. He has presented findings at 26 international scientific conferences. His academic record includes over 70 scientific presentations and papers.
- 18 articles in international journals indexed in major medical databases
- 26 abstracts and book contributions presented at international congresses
- 7 articles published in national peer-reviewed medical journals
- 51 abstracts presented at Turkish national scientific conferences
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