Hope Oncology Group is comprised of professionals from all areas of health related to cancer treatment. However, it was four surgical oncologists who with a philanthropic vision, medical passion and vocation of service, gave life to this project. Learn more about them.

Dr. Josías Juantá Castro




• Oncological surgery, University of Costa Rica, Costa Rica

• Laparoscopic surgery, Roosevelt Hospital, Guatemala

• Head and Neck Surgery, Roffo Institute, Buenos Aires, Argentina

• Memorial Sloan Kettering, New York, United States

• Oncological Reconstruction and Micro Surgery, Sant Pau Hospital, Spain

• Mastology, Samas, Buenos Aires, Argentina

He is currently the coordinator of Head and Neck Surgery at the San Juan de Dios hospital and a collaborator in different social security centers. His interest is in the cases of large resections and immediate reconstruction of different anatomical areas, such as the head and neck, skin and soft tissues.


Oncologist surgeon with postdoctoral training in head and neck surgery. Specialized in Mohs surgery (skin cancer) and microsurgical reconstruction. He is the most experienced active surgeon with the highest number of cases in the country, using this new technique in patients with large tumors. Thus achieving a satisfactory functional and aesthetic result and fully complying with oncological principles.


It has innovated the treatment of cancer with minimally invasive techniques, such as the resection of the thyroid gland by oral access, thus achieving the removal of the thyroid without leaving a scar.


In addition to his professional practice, he dedicates a large part of his time to academic activity, inside and outside the country. He holds conferences outside the country, within the framework of the most recognized medical congresses related to the current management of head and neck cancer, new technologies and treatments.


He is the founder of the Costa Rican Head and Neck Association, of which he is president. He was also president and vice president of the Latin American Federation of Head and Neck Societies, in addition to being part of the working board of the International Federation of Head and Neck Societies. He is a tenured professor at the University of Costa Rica in undergraduate and postgraduate degrees. Writer of medical articles and contributor to chapters of medical literature.

Accredited in the most important hospitals in Costa Rica.

Dr. Eduardo Sáenz Corrales


Dr. Eduardo Saenz Corrales is a general surgeon, surgical oncologist and hepatobiliary surgeon with expertise in the surgical management of hepatobiliary and gastrointestinal pathology, as well as soft tissue tumors.


He is a general surgeon and oncologist, with postdoctoral training in surgery of the liver, pancreas, gall bladder, stomach and intestines. He masters advanced open and laparoscopic techniques. He specializes in the use of intraoperative ultrasound in gastrointestinal surgery. He also specializes in tumor surgeries on the trunk and extremities.



• General surgery, University of Costa Rica, Costa Rica
• Oncological surgery, University of Costa Rica, Costa Rica

• Laparoscopic Surgery, CCMI, Caceres, Spain

• Soft tissue surgery, Institut Gustave Roussy, France

• Hepatobiliary Surgery, Paul Brousse Hospital, France

Dr. Yerald Peraza Solís


He is a general surgeon and oncologist with a special interest in the field of digestive surgery. He specializes in endoscopic surgical techniques. He also specializes in laparoscopic colorectal surgery and trans anal endoscopic microsurgery. He is an undergraduate and graduate professor at the University of Costa Rica, and a collaborator and advisor for the treatment of cancer in Costa Rica.



• General Surgery, University of Costa Rica, Costa Rica

• Oncological Surgery, University of Costa Rica, Costa Rica

• Masters in Endoscopic surgery tecniques, UAB, Spain

• Laparoscopic Digestive Surgery, Santa Creu i Sant Pau Hospital, Spain

• Laparoscopic Colorectal Surgery, Vall D Hebron Hospital, Spain

• Colon and Rectum Unit, National Center of Cancer, Japan

Dr. Hermann Barquero Melchor



• Licenciado en Medicina y Cirugía, UCR, Costa Rica
• Doctor en Avances de la Cirugía: Oncología Quirúrgica, Universidad de Salamanca, España

• Especialidad en Cirugía General, UCR, Costa Rica

• Especialidad en Oncología Quirúrgica, UCR, Costa Rica

• Especialidad en Senología y Patología Mamaria, Universidad Complutense de Madrid, España

Specialist in Surgical Oncology and General Surgery, UCR.


Specialist in Senology and Breast Pathology
Complutense University of Madrid, Spain


Head of Service, Surgical Oncology, Hospital México, CCSS


Licensed Interim Professor, School of Medicine
Faculty of Health Sciences, UCR.


Ad Honorem Professor, Postgraduate in Surgical Oncology


Local postgraduate coordinator, Surgical Oncology headquarters Hospital México, PPEM, SEP, UCR

Support team

Medical Oncology (Chemotherapy)

• Dr. Luis Corrales

• Dr. Melissa Juárez

• Dr. Andrés Wiernik



• Dr. Julio Arguello


Reconstructive surgery

• Dr. Andrés Castrillón Gómez

Palliative Care and Pain

• Dr. Walter Palma



• Dr. Ann Echeverri



• Dr. Diego Mora