Our founding surgeons

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

Dr. Josias Juanta Castro is currently the coordinator of Head and Neck Surgery at San Juan de Dios Hospital and collaborator in various centers of social medicine. He specializes in cases of large resection and immediate reconstruction of different anatomical areas, such as breast, head, neck and soft tissue.


He is a surgical oncologist with postdoctoral training in head and neck surgery. Specializing in MOHS surgery (skin cancer) and microsurgical reconstruction. 


Dr. Josias Juanta Castro is the most experienced active surgeon with the most cases in the country. Using this new technique, in patients with large tumors, he is achieving a satisfactory functional and aesthetic result and fully complying oncologic principles. He is also a professor at the University of Costa Rica in their undergraduate and graduate programs.



• 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

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

Dr. Yerald Peraza Solis is part of the digestive surgery unit team at the San Juan de Dios Hospital, part of the socialized medicine program of Costa Rica.


He is an advisor in the national cancer network, for this desease. In this way he provides patients with the most cutting edge techniques such as laparoscopic surgery.


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

Dr. Hermann Barquero Melchor is a surgeon for diagnosis and treatment of cancer. Particularly breast cancer in all its forms: radical surgery, breast conserving surgery, radio-surgery, selective sentinel node biopsy, oncoplastic surgery, prophylactic mastectomy.


He also is a collaborator specialist in the department of Hematooncology at the Hospital Mexico.



• Doctor and General Surgeon, University of Costa Rica, Costa Rica
• Doctor in Advances of Surgery: Oncological Surgery, University of Salamanca, Spain

• General Surgery, University of Costa Rica, Costa Rica

• Oncological Surgery, University of Costa Rica, Costa Rica

• Senology y Breast Pathology, Universidad Complutense de Madrid, Spain

Support team


• Dr. Ileana González

• Dr. Luis Corrales

• Dr. Melissa Juárez



• Dr. Lorena Gallegos

• Dr. Alejandro Blanco



• Dr. Andrés Castrillón Gómez



• Dr. Mauricio Barrantes



• Dr. Ana Cristina Gutiérrez



• Dr. Diego Mora

Hospital Clínica Bíblica, Consultorio 3, 2do piso, Edificio Omega

Tel: +506-2522-1000 ext 6005 | info@grupohope.org | administracion@grupohope.org

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