Meet Our LLUMC Proton Treatment and Research Center Doctors

The physicians at the James M. Slater, M.D. Proton Treatment and Research Center are highly qualified in Proton medicine. They bring a wealth of experience in treating patients with a variety of cancers and conditions. The physicians at the LLUMC Proton Treatment and Research Center lead the way in research and application of proton therapy treatment.

To read more about any of our doctors, their professional credentials and specialties you may click on their names or visit our Physician Directory.

Image of Dr. Jerry SlaterJerry D. Slater, M.D. - Chairman 

Doctor Slater is Professor and Chair of the Department of Radiation Medicine, Loma Linda University (LLU). He is also the Medical Director and Director of Clinical Affairs for the department at LLUMC and holds appointments at several other hospitals in California.

Dr. Slater’s prime professional pursuit is optimizing radiation therapy, including proton beam irradiation. Doctor Slater has been involved with the design of treatment protocols and clinical research investigations ever since hospital-based proton radiation treatment was pioneered at LLU in 1990.

He is a member of several academic and clinical committees at LLU, including the Cancer Committee, the Radiation Research Committee, the Clinical Research Scientific Review Committee and the Medical Staff Executive Committee. He is a member of several professional societies including:

  • American College of Radiology
  • American Radium Society
  • American Society of Clinical Oncology
  • American Society for Therapeutic Radiology and Oncology
  • Particle Therapy Co-Operative Group

Dr. Slater is a graduate of LLU School of Medicine. He took residency training in radiation oncology at M.D. Anderson Hospital and Tumor Institute, Houston, Texas, followed by fellowships in radiation oncology at Harvard Medical School, Massachusetts General Hospital and Harvard Cyclotron Laboratory in Boston, Mass.

He has authored and co-authored many articles in peer-reviewed journals as well as several book chapters and presentations at professional meetings. Most of these works involve proton radiation therapy and its applications at LLUMC. Doctor Slater conducts research to further enhance the precision of protons via improved delivery systems such as robotic positioning and active beam scanning, both of which extend proton treatment to a greater number of patients with a wider variety of cancers and other diseases. He is also involved in research to apply proton radiation in new ways such as reducing treatment time by means of hypofractionation and employing protons for radiosurgical and palliative applications.

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Image of Dr. David A. BushDavid A. Bush, M.D.

Doctor Bush is Vice Chair of Clinical Affairs and director of residency training for LLUMC’s Department of Radiation Medicine. He also serves LLUMC as a member of its General Tumor Board and Thoracic Tumor Board.

Dr. Bush completed his undergraduate education at Westmont College, Santa Barbara, Calif., where he majored in physics and biology. He received his M.D. degree and completed his postgraduate intern training in radiation oncology at LLUMC.

He is the recipient of several honors including a McPherson Society Research Scholarship, membership in the Alpha Omega Alpha Honor Society and Teacher of the Year Award from the Association of Residents in Radiation Oncology.

Dr. Bush’s active professional and institutional affiliations include:

  • American Society for Therapeutic Radiology and Oncology (ASTRO)
  • Radiation Therapy Oncology Group (RTOG) (for which he is an Institutional Principal Investigator for LLUMC)
  • Gilbert H. Fletcher Society

Dr. Bush is also the study chairman for the following investigations:

  • Medically inoperable lung cancer
  • Locally advanced lung cancer
  • Hepatocellular carcinoma
  • Proton radiation treatment of breast cancer

He has authored or co-authored several peer-reviewed publications in radiation therapy. Among these are articles on proton radiation treatment of medically inoperable cancers of the lung, acoustic neuromas, prostate cancer and hepatocellular carcinomas. He is actively involved in clinical investigations of further uses of proton radiation therapy, notably for patients with breast cancer.

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Image of Dr. Sharon DoSharon Y. Do, M.D.

Doctor Do is Assistant Professor of Radiation Oncology, Department of Radiation Medicine at LLUMC. She completed her undergraduate education in molecular cell biology at the University of California, Berkeley. She subsequently attended Loma Linda University School of Medicine (LLUMC) and was awarded her M.D. degree in 2005. She fulfilled her internship at LLUMC and subsequently began her residency in radiation oncology at the same institution, becoming chief resident in 2009.

During residency, Dr. Do gained extensive experience with proton and photon irradiation for multiple anatomic sites, including fractionated, intracavitary, and stereotactic irradiation, as well as intensity modulated radiation therapy (IMRT).

Dr. Do participates in a variety of investigations of proton and photon radiation therapy at LLUMC. She generally sees patients with cancer of the breast, but is experienced in the radiation treatment of cancers in any anatomic site. She has co-authored peer-reviewed papers in hypofractionated proton therapy for lung cancer, and is involved in developing protocols for innovative use of proton therapy in other anatomic sites, such as for cancer of the pancreas.

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Image of Dr. Ben Rodney JabolaBen Rodney Jabola, M.D.

Doctor Rodney Jabola is an attending radiation oncologist on staff for LLUMC’s Department of Radiation Medicine. He offers conventional and proton radiation treatment to patients with a variety of presentations.

Dr. Jabola completed his undergraduate education at Pacific Union College, and received his M.D. degree from Loma Linda University School of Medicine. He fulfilled his internship and residency in radiation oncology at LLUMC.

 

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Image of Dr. Ari KaterelosAri Katerelos, M.D.

As Instructor of Radiation Oncology, Department of Radiation Medicine at LLUMC, Doctor Katerelos brings a unique perspective to patient care. His initial professional medical experience was in nursing, and he brings to his current practice a heightened patient-centered approach that a nursing background implies.

Dr. Katerelos began his nursing training at Glendale Community College, being awarded a diploma in vocational nursing. He subsequently earned an Associate degree in nursing from Pierce Community College. From 1992 to 2000 he served in several nursing roles in the United States Army and at Northridge Hospital, California, the latter in the medical oncology unit. He rose to the position of charge nurse at Northridge Hospital.

In 1998, Dr. Katerelos began his work toward a career as a physician. He graduated from California State University at Los Angeles with a Bachelor of Science degree (Magna Cum Laude) in 2000, and in 2005 received his M.D. degree from the University of California, Los Angeles. He completed his internship at UCLA Olive View Medical Center, and from 2006 to 2009 served his residency in radiation oncology at Loma Linda University Medical Center. During residency he gained extensive experience with proton and photon irradiation for multiple anatomic sites, including fractionated, intracavitary, and stereotactic irradiation.

Dr. Katerelos participates in a variety of investigations of proton and photon radiation therapy at LLUMC. He generally sees patients with cancer of the prostate, but has experience in the radiation treatment of cancers in a wide variety of anatomic sites.

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Image of Dr. Lilia LoredoLilia N. Loredo, M.D.

Doctor Loredo is Assistant Professor of Radiation Oncology, Department of Radiation Medicine at LLUMC. She also holds staff appointments at three other California medical institutions: San Bernardino County Medical Center; White Memorial Medical Center in Los Angeles and Glendale Adventist Medical Center.

Dr. Loredo completed her undergraduate education in nursing at Loma Linda University. She subsequently attended Loma Linda University School of Medicine and was awarded her M.D. degree. She fulfilled her internship and residency in radiation oncology at LLUMC. She is also licensed to practice medicine in California and Florida.

Dr. Loredo holds memberships in several professional organizations including:

  • American College of Radiology
  • American Medical Association (AMA)
  • American Association for Women Radiologists
  • American Society for Therapeutic Radiology and Oncology (ASTRO)
  • California Radiological Society
  • California Medical Association
  • San Bernardino County Medical Society
  • Gilbert H. Fletcher Society

Dr. Loredo is a leader in a variety of investigations of proton radiation therapy with special focuses on:

  • Cancers of childhood
  • Cancers of the head and neck
  • Melanomas of the eye
  • Tumors of the skull base and spine
  • Benign and malignant brain tumors

She is the author and co-author of several papers on these topics in peer-reviewed literature. As a fluent speaker of Spanish and English, she also plays a special outreach role in the Hispanic community.

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Image of Dr. Ivan NamihasIvan C. Namihas, M.D.

Doctor Namihas is Assistant Professor of Radiation Oncology, Department of Radiation Medicine at LLUMC. He completed his undergraduate education in biology at Loma Linda University. He subsequently attended Loma Linda University School of Medicine and was awarded his M.D. degree. He fulfilled his internship at the University Medical Center in Las Vegas, Nevada, and his residency in radiation oncology at LLUMC. He is licensed to practice medicine in California and Nevada.

Dr. Namihas holds memberships in several professional organizations including:

  • American College of Radiology
  • American Society for Therapeutic Radiology and Oncology (ASTRO)
  • California Medical Association
  • Southern California Radiation Oncology Society
  • San Bernardino County Medical Society
  • Gilbert H. Fletcher Society

Dr. Namihas participates in a variety of investigations of proton and photon radiation therapy at LLUMC. He generally sees patients with cancer of the prostate, but is experienced in the radiation treatment of cancers in any anatomic site. As a fluent speaker of Spanish and English, he is actively involved in Hispanic community outreach.

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Image of Dr. James NelsonJames C. Nelson, M.D.

Doctor Nelson is Instructor of Radiation Oncology, Department of Radiation Medicine at LLUMC. He provides general radiation oncology services at LLUMC’s outreach hospital in Murietta, California.

Dr. Nelson received his undergraduate education at Andrews University, Berrien Springs, Michigan, being graduated in 2000 with a Bachelor of Science degree in Chemistry and Mathematics (Magna Cum Laude). He attended Loma Linda University School of Medicine and was awarded his M.D. degree in 2006, graduating with honors in cell biology. He completed his internship at Texas Tech University, Amarillo, Texas, and from 2007 to 2011 served his residency in radiation oncology at LLUMC. During residency he gained extensive experience with proton and photon irradiation for multiple anatomic sites, including fractionated, intracavitary, IMRT, and stereotactic irradiation. In addition, he has particular proficiency in several Electronic Medical Record applications.

Dr. Nelson participates in a variety of radiation oncology investigations at LLUMC-Murietta. He sees patients with cancers and other diseases, in a wide variety of anatomic sites, that are treated wholly or in part with radiation. He communicates regularly with colleagues at LLUMC regarding cases that can be treated with proton radiation therapy.

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Image of Dr. Gary YangGary Yang, M.D.

Dr. Yang is Professor of Radiation Oncology and head of the gastrointestinal (GI) service in the Department of Radiation Medicine at LLUMC. He received his medical degree from Chicago Medical School and completed his internship at Yale University, New Haven, Connecticut, followed by residency training at Emory University, Atlanta, Georgia and fellowship at Johns Hopkins University, Baltimore, Maryland. Before joining LLUMC, Dr. Yang had served as Residency Program Director and Medical Director in Radiation Medicine during his tenure at Roswell Park Cancer Institute, Buffalo, New York.

Dr. Yang has been invited as moderator/faculty speaker at various scientific and educational sessions of international conferences, including the International Society of GI Oncology and the American Society for Radiation Oncology (ASTRO). He was named as “Educator of the Year” by the Association of Residents in Radiation Oncology. The Research Council of America named Dr. Yang among “America’s Top Oncologists.” He also was listed among “America’s Top Doctors” by Castle Connelly Medical, Ltd., and was cited as one of the “Best Doctors” by The Best Doctors in America.

In addition to his clinical and research responsibilities, Dr. Yang serves as Editor-in-Chief of the Journal of Gastrointestinal Oncology and as Associate Editor of the Journal of Thoracic Disease. He is on the editorial boards of several other oncology journals. He has authored or co-authored more than 150 journal publications, abstracts, and book chapters. He also has been on the committees of ASTRO, the National Comprehensive Cancer Network (NCCN), the Particle Therapy Co-Operative Group (PTCOG) and the Radiation Therapy Oncology Group (RTOG).

At LLUMC, Dr. Yang is responsible for the radiotherapeutic care of patients with gastrointestinal, sarcoma, lymphoma, and prostate cancers. He offers combination treatments, including proton radiation therapy, for patients with these diseases. He collaborates closely with surgical and medical oncologists at LLUMC in these treatment programs. In addition, Dr. Yang has been Principal Investigator for several clinical trials and is actively developing protocols to investigate new approaches to the treatment of GI and other cancers with proton therapy. Among these are:

  • Phase II trial of a proton-chemotherapy combination program for locally advanced pancreatic cancer
  • Phase II trial of a proton-chemotherapy combination program for resectable esophageal or esophagogastric junction cancer
  • Phase I/II trial of stereotactic body proton therapy (SBPT) for patients with liver metastases
  • Phase II study of preoperative proton therapy in soft tissue sarcoma

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