
Dr. Aranzazu Alonso, a distinguished Hematology Oncologist at the Hospital Universitario Quironsalud Madrid, Spain, brings over a decade of expertise in diagnosing, treating, and monitoring hematological and onco-hematological conditions. Specializing in pathologies such as Anaplastic Meningioma, Leucosis, Multiple Myeloma, Leukemia, Chronic Leukemia, Follicular Lymphoma, and Chronic Lymphoblastic Leucosis, Dr. Alonso has garnered a reputation for her commitment to patient care. Graduating in Medicine and General Surgery from the Autonomous University of Madrid in 1996, Dr. Alonso obtained the title of Specialist in Hematology and Hemotherapy via MIR at the Hospital Universitario de la Princesa in 2001. Her professional journey includes serving as a Hematology Assistant in Dr. Fernandez Rañada's team at the Rúber Clinic and Moncloa Hospital. Since November 2006, she has been an integral part of the Quirónsalud Madrid University Hospital. Notably, Dr. Alonso has played a pivotal role as the Principal Investigator in various Phase II and III clinical trials, demonstrating her dedication to advancing medical research in the field of hematology. Her active participation in numerous national and international conferences, workshops, and expert meetings underscores her commitment to staying at the forefront of her field.
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Dr. Blanca Lopez Ibor stands as a distinguished figure in the field of Oncology and Hematology Oncology, contributing over 35 years of expertise to the medical landscape. Currently serving as the director of the Pediatric Hematology and Oncology Unit at HM Montepríncipe Hospital in Madrid, Spain, Dr. Lopez Ibor specializes in the comprehensive care of children and adolescents facing various challenging conditions, including Ewing's Sarcoma, Leiomyosarcoma, Sarcoma, Leucosis, Multiple Myeloma, Leukemia, Non-Hodgkin's Lymphoma, and Lymphoma. Her stellar reputation is underscored by a perfect 5 out of 5 rating from those who have sought her expertise. Educationally, Dr. Lopez Ibor earned her degree in Medicine from the esteemed Complutense University of Madrid, where she completed her residency in Pediatrics. Further enhancing her specialization, she pursued Pediatric Hematology and Oncology at the University of Maryland in the United States, culminating in the title of Doctor of Medicine from the University of Barcelona. Dr. Lopez Ibor's impressive career includes leadership roles such as the head of the Pediatric Hematology and Oncology Unit at Hospital Montepríncipe since 2006 and prior leadership at Hospital Universitario Clínica San Rafael. In addition to her impactful clinical contributions, Dr. Lopez Ibor is an active member of prominent national and international societies, including ASH (American Society of Hematology), ASPHO (American Society of Pediatric Hematology/Oncology), SIOP (International Society of Paediatric Oncology), and AEP (Spanish Association of Pediatrics). Her commitment to advancing knowledge is evident through her authorship of numerous publications, both at the national and international levels. Dr. Blanca Lopez Ibor continues to be a beacon of expertise and compassion in the realm of pediatric hematology and oncology.
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Dr. Carmen Martínez Chamorro is a distinguished hematologist with over 23 years of experience specializing in blood diseases. Her expertise encompasses a broad spectrum, focusing on conditions such as leukemia, lymphoma, and myeloma, as well as advanced procedures like CAR-T cell therapy. Driven by a passion for advancing medical knowledge, she has played a pivotal role as a medical Professor at the European University of Madrid and has held significant responsibilities, including overseeing the Hematology and stem cell transplantation Unit at the Ruber Clinic in Madrid from 1997 to 2007. A dedicated professional, Dr. Martínez Chamorro currently serves in the Hematology sector and stem cell transplantation unit at Quirón Salud University Hospital Madrid. Her commitment to the field is further evident through her active membership in the Spanish Association of Hematology and Hemotherapy and her role in the Scientific Committee of the Leukemia and Lymphoma Foundation. She has been recognized for her outstanding contributions, earning the Extraordinary Bachelor's Award and a Third National Prize for Completing Medicinal and Surgical Studies. With over 20 globally published articles, numerous presentations at international and national congresses, and active participation in clinical trials, Dr. Carmen Martínez Chamorro remains at the forefront of cutting-edge advancements in hematology.
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Dr. Jaime Pérez De Oteyza is one of the best hematology-oncology doctors in Spain, bringing over 35 years of dedicated medical experience. He currently serves as the director of the Hematology and OncoHematology department at HM Madrid Hospital, part of the prestigious HM Hospitales Group. Recognized as a leading doctor in Spain, Dr. Pérez De Oteyza is known not just for his clinical excellence but also for his academic and research achievements. His medical journey began with a degree from the Complutense University of Madrid and a doctorate from the University of Alcalá de Henares, focusing on bone marrow transplantation in leukemia. He has played an essential role in advancing hematology care in Spain, including contributing to the country’s first bone marrow transplant. Beyond clinical care, he leads training, teaching, and research programs across the hospital network. With awards from national hematology associations and memberships in top European medical committees, Dr. Jaime is widely regarded as one of the most popular hematologists in Madrid and a top doctor in the world for hematological care.
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Dr. José María Fernández Rañada is a highly experienced specialist in hematology and bone marrow transplant, bringing 48 years of expertise to his clinical practice. Fluent in both Spanish and English, he has established himself as a prominent figure in the field. Dr. Fernández Rañada's educational journey began with his graduation in primary medical education from the Autonomous University of Madrid, followed by residency at Jimenez Diaz Foundation University Hospital. He further honed his skills through a fellowship program at Hammersmith Imperial Hospital in London. Throughout his illustrious career, Dr. Fernández Rañada has held various significant positions, starting as a senior specialist in hematology at 12 de Octubre University Hospital. Over the years, he progressed to become the director of the Hematology and Haemotherapy Department at 12 de Octubre University Hospital and the medical director at Princesa University Hospital. His contributions extended to serving as the head of the Department of Hematology and Haemotherapy at La Princesa University Hospital and as a senior healthcare practitioner at the Hematopoietic Transplant Program at Ruber Clinic. Since 2006, Dr. Fernández Rañada has been leading the Hematology Department at Quironsalud Madrid Hospital. In addition to his clinical roles, Dr. Fernández Rañada is affiliated with prestigious organizations, including the European Bone Marrow Transplantation Group, Spanish Association of Hematology and Haemotherapy, Spanish Hematopoietic Transplant Group, and the International Bone Marrow Transplantation Registry. His extensive publication record, with contributions to both international and national journals, showcases his commitment to advancing knowledge in the field.
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Dr. Luis Madero Lopez is a distinguished figure in the field of Pediatric Hemato-Oncology, serving as the Chief of the Pediatric Hemato-Oncology Service at Quirón Salud Madrid University and the Oncohematology and Hematopoietic Transplant Service at Niño Jesús Hospital. With an impressive career spanning over 35 years, he holds the position of Professor of Pediatrics at the Autonomous University of Madrid, where he imparts his extensive knowledge and experience. Dr. Madero Lopez graduated in Medicine and Surgery from Complutense University in 1977 and further specialized in pediatrics, becoming a pediatric specialist at the same institute in 1984. Throughout his career, Dr. Madero has been a trailblazer in the field, contributing significantly to research and education. He served as the Head of the Cancer Center and Hematopoietic Transplantation Section at Niño Jesús Hospital and continues to lead the Oncohematology and Hematopoietic Transplantation Service at the same institute. His leadership extends to being the Chief of the Children's Hemato-Oncology Service at Quirónsalud Madrid Hospital. Dr. Luis Madero Lopez is recognized for his prolific contributions to scientific literature, with over 200 articles in global magazines, more than 200 in public magazines, and authoring over 12 books on pediatric Oncohematology. Additionally, he has participated in numerous national and international conferences, cementing his position as a respected authority in the field. His dedication to research is evident through his involvement in over 10 subsidized national research projects and collaboration in more than 20 research initiatives.
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Madrid is home to some of Europe’s most advanced centers for onco-hematology, a field combining cancer care (oncology) and blood disorder treatment (hematology). The city’s hospitals offer world-class expertise in diagnosing and managing conditions such as leukemia, lymphoma, myeloma, aplastic anemia, and myelodysplastic syndromes. With access to advanced molecular diagnostics, immunotherapy, and bone marrow transplantation, Madrid provides high-standard care for both local and international patients. Renowned institutions such as Hospital Universitario 12 de Octubre, Hospital Universitario Gregorio Marañón, Hospital Universitario La Paz, and Clínica Universidad de Navarra (Madrid campus) are recognized for their excellence in onco-hematology, clinical research, and compassionate multidisciplinary care.
➤ Expert specialists with global training - Madrid’s onco-hematologists are internationally recognized for their research and clinical experience in hematologic malignancies and bone marrow transplantation.
➤ Comprehensive cancer and blood care - From diagnosis and chemotherapy to stem cell transplants and targeted therapies, hospitals provide full-spectrum treatment under one roof.
➤ Access to clinical trials - Leading hospitals in Madrid participate in international research programs, giving patients access to novel drugs and advanced treatment options.
➤ Integrated care teams - Onco-hematology departments work alongside radiologists, pathologists, and immunologists to deliver coordinated and personalized patient care.
➤ International patient support - Multilingual coordinators and dedicated international departments assist with medical arrangements, translation, and travel planning.
Dr. Joaquín Martínez López
Specialty/Sub-specialty: Hematology, leukemia, molecular genetics in blood cancers
Experience: 25+ years
Dr. Martínez López is the Head of the Hematology Department at Hospital Universitario 12 de Octubre and one of Spain’s foremost experts in leukemia and molecular diagnostics. He also leads several international clinical trials in hematologic oncology.
Dr. Carmen Álvarez-Larrán
Specialty/Sub-specialty: Myeloproliferative neoplasms, lymphoma, bone marrow transplant
Experience: 20+ years
Dr. Álvarez-Larrán practices at Clínica Universidad de Navarra (Madrid campus) and is known for her expertise in myeloproliferative disorders and hematologic malignancies. She is involved in research focused on targeted therapy and stem cell transplantation.
Dr. María Díez-Campelo
Specialty/Sub-specialty: Multiple myeloma, hematopoietic stem cell transplantation, immunotherapy
Experience: 20+ years
Dr. Díez-Campelo is a Consultant Hematologist at Hospital Universitario de Salamanca and Hospital Ruber Internacional (Madrid). She is widely recognized for her work in myeloma treatment and advanced immunotherapy strategies.
Dr. Ramón García Sanz
Specialty/Sub-specialty: Lymphoma, chronic lymphocytic leukemia (CLL), hematologic research
Experience: 25+ years
Dr. García Sanz collaborates with Hospital Universitario de Salamanca and Madrid research networks, contributing to clinical trials in lymphoma, CLL, and plasma cell disorders. His work has significantly advanced precision medicine in hematology.
Dealing with complex blood cancers or disorders can be overwhelming - Best Clinic Abroad simplifies your journey by:
➤ Connecting you with verified onco-hematology experts - We match you with top specialists in Madrid based on your diagnosis and treatment goals.
➤ Providing second opinion services - Review your test results and proposed therapies before making travel decisions.
➤ Coordinating consultations and documentation - We organize appointments, handle medical record transfers, and liaise with hospitals for you.
➤ Supporting international patients - From travel and accommodation to translation and hospital assistance, we make your experience smooth and stress-free.
Request your free consultation with Best Clinic Abroad today to explore leading onco-hematologists and advanced cancer care options in Madrid, and take the first step toward effective treatment and recovery.