Best IgG4 Related Disease (IgG4 RD) Doctors Worldwide — TOP 16

Dr. Huseyin Baloglu is a pathologist at Anadolu Medical Center in Turkey. He leads liquid biopsy and precision oncology services. Dr. Baloglu holds a patent for molecular diagnostics in thyroid cancer treatment. He completed training at Albert Einstein College of Medicine and Heidelberg University.

• Authored over 600 peer-reviewed publications in molecular and surgical pathology.
• Specializes in tumor biopsy, immunohistochemistry, and genetic mutation testing.
• Treats complex oncological cases, including glioblastoma and rare sarcomas.
• Works at Anadolu Medical Center, a facility affiliated with Johns Hopkins Medicine.

Professor of Medical Oncology with a focus on Gastrointestinal Oncology – Prof. Sağlam brings specialized expertise to IgG4 RD cases at Gayrettepe Florence Nightingale Hospital.

• Over 27 years of experience of experience in medical oncology
• Fellowship-trained at Istanbul University – a leading medical institution
• Member of ESMO and ASCO – top oncology societies
• Specialized in gastrointestinal oncology since 2005

Prof. Dr. Sefik Igdem specializes in advanced radiation oncology at Gayrettepe Florence Nightingale Hospital.

• Experienced in treating head and neck cancers
• Uses advanced technologies like Truebeam Stx
• Professor at T.R. Demiroğlu Bilim University
• Specializes in conformal treatments for precision

Dr. Osama Abdel Mohimen Mohamed leads the Hematology Unit at Shefaa Al Orman Oncology Hospital. He treats complex blood cancers, including leukemia, lymphoma, and myeloma. Dr. Mohamed is a member of the European Society for Medical Oncology. He also holds memberships in the American Society of Hematology and ASBMT.

• Specializes in chemotherapy, immunotherapy, and bone marrow transplantation.
• Manages aggressive acute leukemia and chronic blood disorders.
• Treats complications arising from various solid tumors.
• Works at an ESMO-accredited center that handles 6,000 patients annually.

Dr. Raphael leads the Israeli National Genomic Medicine Initiative's oncology project at Sourasky Medical Center, focusing on cutting-edge treatments for IgG4 Related Disease.

• Senior Lecturer and active researcher in genomics and biomedical informatics
• Primary investigator for multiple clinical trials in oncology
• Board member of the Israeli Acute Oncology Society
• Specializes in thoracic malignancies and comprehensive genomic profiling

Dr. Muhammed Mustafa Atci is an Associate Professor of Medical Oncology at Liv Hospital Topkapı. He specializes in treating colon, breast, gastric, and lung cancers. He previously served as the Education Coordinator at Prof. Dr. Cemil Taşcıoğlu City Hospital. Dr. Atci is a member of the American Society of Clinical Oncology (ASCO).

• Author of 19 peer-reviewed papers on gastrointestinal, thoracic, and endocrine cancers.
• Published studies on survival outcomes for stage IIB colon cancer in the Journal of Chemotherapy.
• Researches prognostic biomarkers using PET/CT scans and metabolic tumor volume.
• Treats complex oncological cases at the university-affiliated İstinye University clinic.

Dr. Mariam Abu Zeid is a clinical oncologist at Shefaa Al Orman International Oncology Hospitals. She is certified by the European Society for Medical Oncology. Dr. Abu Zeid treats solid tumors and hematologic cancers. She holds a Ph.D. in Clinical Oncology and Nuclear Medicine from Ain Shams University.

• Administers chemotherapy, immunotherapy, and targeted treatments for various cancer types.
• Oversees oncology clinical trials and manages treatment-related toxicities.
• Coordinates patient care within multidisciplinary teams for complex staging and diagnosis.
• Practices at an ESMO-accredited center that treats approximately 6,000 patients annually.

Dr. Irfan Cicin is a Professor of Medical Oncology at İstinye University Liv Hospital Topkapı. He specializes in treating complex cancers, including glioblastoma, lung cancer, and pancreatic tumors. He serves as a professor at the Trakya University Faculty of Medicine. Dr. Cicin previously served as a physician in the Turkish Air Force.

• Performs systemic therapies such as immunotherapy, chemotherapy, and hormone therapy.
• Treats a wide range of conditions including gynecologic, orthopedic, and neuro-oncology cases.
• Expert in HIPEC and chemoembolization for liver and abdominal malignancies.
• Works at a 300-bed university hospital with 33 medical departments.

Dr. Alemdar specializes in IgG4 Related Disease with extensive training in medical oncology at Akdeniz University Hospital.

• Board-certified in medical oncology since 2018
• Over 20 years of experience of experience in internal medicine and oncology
• Trained at Akdeniz University – a leading medical institution in Turkey
• Works at Medical Park Antalya Hospital Complex

Dr. Liu Shi Xin is the Vice Chairman of the Radiation Oncology Branch of the Chinese Medical Association. He serves as the Discipline Leader of the Oncology Center at Xiamen Humanity Hospital. Dr. Liu specializes in precision radiotherapy for thoracic and abdominal cancers. He is a recipient of the State Council Special Government Allowance for his medical contributions.

• Highly proficient in IMRT, VMAT, and SBRT for lung and esophageal cancers.
• Former President of Jilin Provincial Cancer Hospital.
• Awarded the National Famous Doctor honor for outstanding contributions to oncology.
• Holds leadership roles in the Chinese Anti-Cancer Association particle therapy committee.

Dr. Yaacov Lawrence is the Chair of Radiation Oncology at Sheba Medical Center. He specializes in precision radiation therapy and neuro-oncology. Dr. Lawrence pioneered celiac plexus radiosurgery for pancreatic cancer pain management. He holds the FASTRO designation, one of the highest honors in his specialty.

• Leads the Gastrointestinal Cancer Program at Sheba Medical Center.
• Performs stereotactic radiosurgery for brain tumors and nervous system cancers.
• Authored over 280 scientific publications on personalized radiation protocols.
• Completed radiation oncology fellowship training at Thomas Jefferson University.

Dr. Raanan Berger is the Director of the Cancer Center at Sheba Medical Center. He was listed in Forbes Israel’s “Best Doctors” in 2025. Dr. Berger specializes in genitourinary oncology and radiates complex prostate tumors. He completed a postdoctoral fellowship at the Dana-Farber/Harvard Cancer Institute.

• Heads the clinical research unit focusing on molecular oncology.
• Co-authored over 20 peer-reviewed papers on prostate cancer and BRCA mutations.
• Member of the American Society of Clinical Oncology (ASCO).
• Performs systemic therapy and radiotherapy at a Top-10 globally ranked hospital.

Dr. Maha Yahia is a medical and hemato-oncologist at Shefaa Al Orman International Oncology Hospitals. She served as a Lieutenant Colonel physician in the Egyptian Armed Forces Medical Corps. Dr. Yahia specializes in treatment planning for breast, thoracic, and gastrointestinal cancers. She focuses on immunotherapy, targeted therapy, and complex chemotherapy protocols.

• Former Head of the Clinical Research Support Team at Maadi AFMC.
• Trained at the National Cancer Institute, Cairo University, in hemato-oncology.
• Treats genitourinary, gynecologic, and rare cancers alongside hematologic conditions.
• Works at an ESMO-accredited center that treats 6,000 patients annually.

Dr. Atakan Topcu is a medical oncologist at Medipol Acibadem District Hospital in Istanbul. He specializes in treating solid tumors including lung, breast, and colorectal cancers. Dr. Topcu is an Associate Professor with over 50 peer-reviewed scientific publications. He sits on the Editorial Board of the medical journal BMC Cancer.

• Expertise in immunotherapy, targeted therapies, and geriatric oncology care.
• Treats cancer-related malnutrition, cachexia, and sarcopenia.
• Maintains active membership in the European Society for Medical Oncology (ESMO).
• Works at a JCI-accredited hospital specializing in advanced oncology treatments.

Head of Teaching at Puerto Vallarta Regional Hospital – Dr. Perez brings academic leadership to patient care.

• 12 years of experience as a general practitioner in private practice
• Specialized training in biomagnetism from Isaac Goiz Duran
• Experience with advanced dermatological procedures and therapies