About Us
At Williams Cancer Institute, we are transforming the landscape of cancer care through innovation, expertise, compassion, and personalized treatments tailored to each patient’s unique needs. Less invasive, most advanced, effective, humane, and aesthetic treatment for cancer.
About Us
Mission
WCI’s mission is to make this planet a better place by eliminating and reducing the suffering and harm caused by the terrible disease of cancer. Our treatments are carefully tailored for each patient’s unique case to provide the most effective care possible.
Dr. Williams’ childhood dream was to rid the world of this disease, having watched it take his beloved grandmother and his grandfather before he even had a chance to meet him. For this reason, he hopes that no one will suffer from cancer, and believes that developing prevention, treatment, and ultimately a cure will make the world a better place.
WCI and Dr. Williams share a mission of service to help others. In turn, we hope those we assist will go on to do great things for the world, also in service to others. We prioritize helping people who still have much to offer, contributing to making the world a better place.
One day, we hope these advanced, personalized treatments will be available to all. Currently, as resources to treat patients are limited, we must do our best to select those patients we can help most effectively. In turn, these individuals will be able to contribute meaningfully to the world. Please review our application process to become a patient. It is very helpful for us to understand both your future mission for the planet and your medical information, so we can determine if we may be able to help you.
Our Team
Dr. Jason R. Williams
President and Director at WCI
Jason R. Williams is a medical doctor, board-certified radiologist, image-guided cancer specialist, researcher, and professor.
He is one of the pioneers of immunotherapy, specializing in intra-tumoral interventions. He performed the world’s first ablation procedure and implemented an intra-tumoral injection of a specific combination of immunotherapy agents, thus leveraging the actual process of ablation as an immunotherapy agent itself. Since then, he has performed thousands of procedures many of them “first in human” in multiple areas of ablation and cryoablation therapies.
Dr. Williams is the Director of Interventional Oncology and Immunotherapy at the WCI, where he has been advancing the use of intra-tumoral immunotherapy. He is also an adjunct professor at Case Western Reserve University in Cleveland, Ohio, where he is helping to further cutting-edge research. In addition, he is actively involved in private research combining numerous different immunotherapy agents for image-guided intra-tumoral injection covering almost all cancer types.
He live between Los Cabos, Baja California, and Los Angeles, California.
Dr Williams started doing ablation in the early 2000s in his university. Then the need of creating an institute started to become more evident, but the process was not easy.
Williams Cancer Institute started in a difficult time because there was lack of approval, lack of insurance coverage and the hospitals were not receptive. In 2014, we started doing procedures mainly in the US. We have offices in Florida and California and facilities in Cabos San Lucas and Mexico City in Mexico. Williams Cancer Institute was called Image Guided Cancer Specialist at that moment. It was at the same time when Dr. Williams was writing our book The Immunotherapy Revolution. It ultimately changed to Williams Cancer Institute and now we have three facilities in between Mexico and the US, having the best team ready to save cancer patients’ lives.
We´re also looking to keep growing and we hope to get more facilities around the world, someday we want to achieve the dream of Dr. Williams to see cancer become a distant memory from the past.
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Dr. Carlos Vargas
Chief of imaging Officer at WCI
Dr. Carlos A. Vargas, with 19 years of experience in both diagnostic studies and image-guided interventional procedures, board certificated by the College of Radiology and Imaging of Mexico City.
He graduated from the medical school at La Salle University in Mexico City in 1998 and has specialized in Radiology and Imaging in 2000.
Since 2003 he had been practicing diagnostic and interventional radiology. He has a master’s degree in hospital administration. He also has interest in teaching with more than 15 years experience in undergraduate courses at private universities as La Salle and Anahuac Universities.
He has been chief of radiology departments in several private hospitals in Mexico City such as San Angel Inn Chapultepec and Diomed.
Co-author in several publications in the field of interventional radiology such as:
1. Tratamiento Endovascular Del Aneurisma de Aorta Abdominal. Vision de la Radiología Intervencionista. Acta Médica Grupo áNgeles a (2206) v (4) N (4) – Octubre-Diciembre
2. Procedimientos Intervencionstas en vías Biliares. Acta Medica Grupo áNgeles a (2006) v (4) N (3) – Julio-Septiembre
3. Nefrostomia Percutánea. Acta Médica Grupo áNgeles a (2006) v (4) N (3) – Julio-Septiembre
4. Filtros en Vena Cava Inferior. Acta Médica Grupo áNgeles a (2206) v (4) N (2) – Abril-Junio
5. Aneurisma de Aorta Abdominal. Acta Medica Grupo áNgeles a (2203) v (1) N (2) – Abril-Junio
Dr. Nathan Goodyear
Integrative Medicine Physician
Dr. Nathan Goodyear is an integrative medicine physician, board-certified in Obstetrics and Gynecology, and a leader in wellness and cancer prevention. He specializes in functional and regenerative medicine, focusing on healing and teaching the body to restore itself.
Dr. Goodyear works at the Williams Cancer Institute alongside Dr. Jason Williams, pioneering innovative cancer care with a holistic approach. Together, they focus on reprogramming diseased cells and promoting wellness to prevent cancer.
His medical philosophy, Docēre rāphè, is deeply rooted in the principles of teaching and healing. The Latin term Docēre, meaning “to teach,” aligns with the traditional role of a doctor as a teacher. The Hebrew word Rāphè, meaning “physician” or “healer,” emphasizes the restorative aspect of medicine. Dr. Goodyear integrates these ancient concepts to redefine modern medical practice, focusing on wellness and healing rather than merely treating disease.
Dr. Goodyear earned his MD from LSU Health Sciences Center and has practiced integrative medicine since 2006. He is a published author, speaker, and the CEO of Goodyear Media Group, dedicated to educating and empowering patients and physicians with cutting-edge medical insights.
His work emphasizes the principles of hope, healing, and truth, striving to return medicine to its roots of teaching and wellness.
Eduardo Cortes
Chief Medical Officer at WCI
Eduardo Cortes studied biomedical engineering in Mexico City at Universidad Iberoamericana with a passion for improving patient outcomes in the field of oncology.
Since January of 2016, Eduardo has been an integral member of the Williams Cancer Institute team, where he works to further develop and implement solutions to improve cancer treatment alongside Dr Williams.
Eduardo’s commitment to patients is evident in everything he does. He is known for his compassionate approach to care and his ability to connect with patients on a personal level, ensuring that medical staff and care are provided in the best possible way.
As Medical Director of the Williams Cancer Institute, he plays a crucial role in patient care and medical coordination. Eduardo’s expertise lies in Intratumoral Immunotherapy and has been instrumental in implementing this innovative treatment approach at the institute.
He is extremely excited about the future of cancer research and is dedicated to making a positive impact on patients’ lives. He is committed to continuing his education and professional development to stay at the forefront of the field.
When he’s not working, Eduardo enjoys spending time with his family and training for his next triathlon.
Dr. Jesus Barrera
Medical Doctor and Anesthesiologist
Dr. Jesus A. Barrera Peralta is originally from the state of Baja California Sur, born in the town of Santa Rosalia in the municipality of Mulegé in the north of the state, from a very young age he migrated to the state of Baja California to pursue his medical degree at the University Xochicalco Campus Ensenada, where he graduated satisfactorily with honors in 2009.
He concluded his postgraduate studies in Anaesthesiology in 2014, graduating from the High Specialty Medical Unit of the National Medical Centre of the West in Guadalajara, Jalisco and has more than 10 years of experience in the field of Anaesthesiology. Concerned about public health on the eve of helping those most in need, he participated as Coordinator, Assistant Director and Medical Director in various hospitals and Deputy Director and Medical Director in different public hospitals in the town of Cabo San Lucas in Baja California Sur, Mexico until 2021. He is currently an active member of the College of Anaesthesiology in the state of Baja California Sur and Federated since 2014.
He is an anaesthesiologist in the Neuro Spine and Pain Clinic and a staff member in the Hospital H+ Los Cabos since 2018, participating in various surgical branches.
Two years ago he received the invitation to participate in WCI where he says he saw an area of opportunity to help people with cancer in advanced stages and little chance of life in the short term. His goal to help Dr. J Williams being his greatest achievement, he provides security and confidence to all our patients from their admission, during the treatment provided by Dr. J. Williams and later in the area of satisfactory recovery with the best of experiences for patients, leaving their treatment in the best possible conditions.
Dr. Ramon Sanchez
Medical Surgeon – Diagnostic and Therapeutic Imaging Specialty
Dr. Ramon Alfonso Sanchez Sanchez, a distinguished interventional radiologist, has built an exemplary career through dedicated service, innovative research, and a commitment to excellence in patient care. After graduating from Universidad La Salle in Mexico City, Dr. Sanchez achieved national recognition by securing the 3rd place in Mexico’s national residency exam for radiology. He undertook his residency at Manuel Gea Gonzalez General Hospital, completing a four-year program in radiology. Throughout his residency, Dr. Sanchez contributed to both national and international meetings, earning recognition and awards for his work.
In his third year of residency, he was appointed as Chief of the Radiology Residency Program, demonstrating early leadership qualities. Dr. Sanchez further specialized in interventional radiology and interventional oncology at the Instituto Nacional de Cancerología (INCAN) in Mexico, a leading center for cancer research and treatment. After completing his training, he continued at INCAN for two additional years as an attending physician, focusing on training new doctors and treating patients with oncological diseases.
Seeking new challenges, Dr. Sanchez accepted the position of Chief of Interventional Radiology at HRAEI Hospital, a tertiary care facility in Mexico, where he was involved in resident education and collaborated closely with oncologists on treating cancer patients. His pursuit of innovation led him to Los Cabos, where he took on the role of Chief of Radiology at H+ Hospital. There, he met Dr. Jason Williams and began collaborating on cutting-edge oncological therapies at the Williams Cancer Institute. For the past 18 months, Dr. Sanchez has been instrumental in advancing image-guided intratumoral therapies and cryoablation procedures.
Dr. Sanchez is an accomplished author and co-author in the field of interventional radiology, with notable publications including:
- “Punción y drenaje de colecciones toracoabdominales en servicios de radiología intervencionista” (Puncture and drainage of thoracoabdominal collections in interventional radiology services) in Anales de Radiología México, January 2016.
- “Coriocarcinoma en un paciente con antecedente de enfermedad trofoblástica: reporte de caso y revisión de la literatura” (Choriocarcinoma in a patient with a history of trophoblastic disease: case report and literature review) in Anales de Radiología México, January 2016.
- “Mucormicosis diseminada. Presentación de caso y revisión de la literatura” (Disseminated Mucormycosis. Case presentation and literature review) in Anales de Radiología México, January 2016.
Dr. Sanchez’s dedication to his field, coupled with his significant contributions to interventional radiology, position him as a leader and innovator in cancer treatment and radiology education
Dr. Renata Barco
MEDICAL DOCTOR AT WCI
Dr. Renata Barco is a dedicated general physician with a strong commitment to oncology patient care. She graduated from Universidad del Valle de México in 2020, achieving the fourth highest GPA in her class. Currently, she is furthering her expertise by pursuing a master's degree in Health Institution Management, aiming to enhance patient care and healthcare administration.
Her journey with Williams Cancer Institute (WCI) began in 2019 during her internship at Hospital Diomed in Mexico City. Inspired by WCI's innovative approach to cancer treatment, she officially joined the team in 2022. Since then, she has gained invaluable experience in providing compassionate, patient-centered care.
Dr. Barco believes in a holistic approach to medicine, recognizing that emotional support is just as crucial as medical treatment. She is dedicated to building trust with her patients, ensuring they feel heard, supported, and guided throughout their journey. By closely monitoring their progress and personalizing treatment plans, she strives to improve their quality of life.
As part of WCI, Dr. Barco collaborates closely with a multidisciplinary team, always prioritizing the physical and emotional well-being of her patients. With a humanistic and evidence-based approach, she is committed to delivering high-quality medical care and advancing cancer treatment strategies
Dra. Atenas Villela
Medical Doctor
Dr. Atenas Villela is a physician specializing in Internal Medicine and Hematology, with training in Thrombosis and Hemostasis, an area focused on the diagnosis and treatment of coagulation disorders. Her primary role is to conduct medical evaluations before procedures and provide the necessary post-procedure care, ensuring comprehensive and continuous care for her patients.
Dr. Atenas has a particular interest in the treatment of oncology patients, as cancer is one of the conditions that can affect the coagulation system. Her goal is to study and deepen her expertise in this field to offer optimal treatment options to those with cancer and coagulation disorders.
Atenas works closely with the WCI team and the hospital, collaborating with other professionals to provide high-quality medical care. She enjoys working as part of a team and is dedicated to offering support and care to each patient at the institute.
Vanessa Cazares
Nurse
Vanessa is a nurse who graduated from the International University of La Paz in 2017. During her early years of professional experience, she excelled in various areas of nursing, with a particular focus on the surgical field.
Two years ago, she had the opportunity to collaborate with the Williams Cancer Institute (WCI) at the hospital where she worked, an experience that marked a turning point in her career. Fascinated by WCI’s revolutionary approach to cancer treatment, Vanessa became actively involved in its implementation, solidifying her interest in innovation in healthcare.
In August 2023, she officially joined the WCI team, where she contributes her expertise to optimize hospital logistics and improve the patient experience.
Vanessa is known for her deep connection with patients. Her kind and approachable demeanor inspires trust and reassurance, helping to create a safe and humanized environment in healthcare.
Dr. Jason R. Williams Credentials
Medical School: Louisiana State University Health Sciences Center.
Internship: Internal Medicine, University South Alabama.
Residency: Radiology, University of South Alabama. Certifications and Additional
Training: Board Certified by American Board of Radiology, Interventional Oncology, Interventional Spine, Nuclear Medicine.
MQSA (Breast Imaging), ACLS, PALS.
Adjunct Professor: Case Western Reserve University, Cleveland, OH.
Radiological Society of North America Resident/Fellow of the year award 2002.
2007 Telly award.
The chance to treat as many patients as we can
Chemotherapy, and radiation are not only extreme but can be just as painful and dangerous as cancer
When doctors treat cancer aggressively it leaves the body in a weakened, susceptible state open to contracting other diseases or relapses. Most of the medical field refuses to acknowledge the major problems with the way they treat cancer.
So is there really a better way to heal from cancer against all odds? YES! Grab your copy now, and discover the promising solution to cancer!
Williams Cancer Institute is giving away 200 copies of its best-seller book “The Immunotherapy Revolution"
The Immunotherapy Revolution Audio Book
JASON R. WILLIAMS, MD, DABR
Frequently Asked Questions
We are a private healthcare facility, and unfortunately, our treatments are not covered by health insurance. The cost of treatment varies based on several factors, including the type and location of the cancer, tumor burden, and other individual considerations. Dr. Williams and his team will carefully review your case to develop a personalized treatment plan tailored specifically to your needs, ensuring the best possible care.
Yes, our medical team will stay closely connected with you after your treatment to monitor your progress. Follow-up lab tests will typically be done every two weeks for the first six weeks, and initial imaging scans are usually scheduled 4 to 6 weeks after treatment. These labs and scans should be completed at your local healthcare facility or place of origin, so you can receive care conveniently close to home. The exact schedule may vary depending on your individual case and needs.
Dr. Williams or one of our skilled interventional radiologists will perform your procedure, with all decisions guided and overseen by Dr. Williams to ensure the best care for you.
Travel and accommodation expenses are your responsibility. However, we do provide transportation between the airport and the hospital to make your visit easier.
We provide airport pick-up.
We understand how important support from loved ones is during your treatment. That’s why we allow one family member to stay with you at all times while you are in the hospital. If you have any special requests or questions about visiting, please let us know—we’re here to help.
Immunotherapy is generally well-tolerated, and many people find its side effects to be milder than those experienced with chemotherapy.
However, as with any treatment, some side effects may occur. These can include mild fever, tiredness or low energy, decreased appetite, flu-like symptoms (such as chills or muscle aches) and discomfort or soreness in the area being treated. Most people find these side effects manageable, and they are often less intense than those commonly associated with chemotherapy. Our medical team will work closely with you to help minimize any discomfort and support your well-being throughout the treatment process.
It is best to avoid antibiotics unless they are absolutely necessary. Our medical team will carefully review your case, including your current treatments and medications. Our goal is not to interrupt your existing therapies but to complement them safely and effectively. If you have any concerns about your medications, please let us know so we can provide personalized guidance.
Treatment includes medical bills related to your treatment such as the anesthesiologist, radiologist, internal medicine, that will be involved in your care. As well and most importantly the Immunotherapy medications used in your treatment.
At Williams Cancer Institute we offer Pulse Electric Field ablation (PEF), Cryoablation, Intratumoral Chemotherapy and fecal microbiota transplant. These are personalized treatment plans tailored to each patient’s case and can be applied for a variety of cancers.
