Coastal Radiation Oncology Medical Group
world-class cancer care has a local address.

Leading Cancer Treatment Specialists in Your Neighborhood

Our highly-trained radiation oncologists treat thousands of cancer patients each year and have the knowledge, experience and expertise needed to provide effective cancer care utilizing advanced radiation therapies.

About Our Radiation Oncologists

Case Ketting, M.D.

dr kettingDr. Ketting is a former electrical engineer and a graduate of the University of Washington School of Medicine. He completed his radiation oncology specialty training at Loma Linda University Medical Center, then returned to University of Washington as a research fellow. Subsequently, Dr. Ketting served as Assistant Professor with Loma Linda University, then as medical director of the Jordan Family Radiation Oncology Department at St. Jude Medical Center in Fullerton, California, from 2000 through 2006. His colleagues at St. Jude voted him "Most Compassionate Physician" in 2002. Dr. Ketting has been with Coastal Radiation Oncology since 2009. When not at work, he enjoys playing "Papa" to his twin daughters and piloting a 1948 Navion airplane.

Dr. Ketting practices at the Mission Hope Cancer Center in Santa Maria.

Eugene Ahn, M.D.

Eugene Ahn, M.D.A graduate of the University of Washington, Dr. Ahn attended medical school at the New York University School of Medicine and completed a residency at UCLA Medical Center. He is board-certified in therapeutic radiology with a particular interest in stereotactic radiosurgery for brain tumors and head and neck cancers. Additionally, Dr. Ahn has significant experience in MammoSite brachytherapy for early stage breast cancer. Dr. Ahn initiated the first MammoSite treatment in Ventura County in 2004. The breast brachytherapy program in Thousand Oaks is now the largest in Ventura, Santa Barbara, and San Luis Obispo counties.

Dr. Ahn has published on stereotactic radiosurgery and was the recipient of the Young Oncologist Research Award 2003 from the American Radium Society. He is Vice President of Coastal Radiation Oncology Medical Group, the medical director of Coastal’s Simi Valley Radiation Oncology Center, and is co-medical director of the Los Robles Gamma Knife Center in Thousand Oaks.  Dr. Ahn is a member of the American Society for Therapeutic Radiology and Oncology (ASTRO).

Dr. Ahn practices at North Oaks Radiation Oncology Center in Thousand Oaks, and is medial director of the Simi Valley Radiation Oncology Medical Center in Simi Valley.

James Longo, M.D.

Dr LongoAfter graduating with honors from the UNM School of Medicine, Dr. Longo completed his residency in Radiation Oncology at UCLA.  As chief resident at UCLA he received the American Cancer Society Clinical fellowship award in Oncology.  He has been board-certified in Radiation Oncology since 1986. Since then he has served on the clinical faculties of Stanford and UCLA and academic faculty of University of New Mexico. Dr. Longo has been involved in clinical research and has been moderator of the monthly oncology conference at Twin Cities Hospital. He has been Vice-chair of Twin Cities Hospital Governing Board, serves on the Advisory Board for the Cancer Support Community of the Central Coast, and is presently Chief-of-Staff of the hospital’s physicians. Dr. Longo has been Director of Templeton Radiation Oncology Center since 1991.

Dr. Longo practices at the Templeton Radiation Oncology Medical Center.

Jeffrey Rodnick, M.D.

Dr RodnickA graduate of the University of California at Davis, Dr. Rodnick attended medical school at UCLA where he also completed his residency in Internal Medicine in 1988. Dr. Rodnick completed a radiation oncology residency at the University of California at Irvine in 1992, where he subsequently served as an Assistant Clinical Professor. Dr. Rodnick now serves as the medical director for Coastal Radiation Oncology Medical Group and is an active member of the American Society for Radiation Oncology (ASTRO), the American College of Radiology (ACR) and the Ventura County Medical Association. Dr. Rodnick is board certified in both Radiation Oncology and Internal Medicine.

Dr. Rodnick practices at Cabrillo Radiation Oncology Medical Center in Ventura.

Jeffrey Wu, M.D.

dr wuRaised in Virginia Beach, Virginia, Dr. Wu graduated cum laude from Duke University with majors in Chemistry and Biology. He received his M.D. from David Geffen School of Medicine at UCLA and was inducted into the Alpha Omega Alpha medical honor society. He remained in Los Angeles to complete an internship at Harbor-UCLA Medical Center and an additional four years of dedicated radiation oncology training at UCLA.

He has extensive experience in stereotactic radiosurgery (SRS), stereotactic body radiotherapy (SBRT), volumetric modulated arc therapy (VMAT), intensity-modulated radiation therapy (IMRT), and high-dose-rate (HDR) brachytherapy for various types of cancer including tumors of the head and neck, prostate, lung, liver, breast, and other sites throughout the body. He has been invited to present his research at various national and international conferences, and he has published numerous peer-reviewed articles as well as a recent book chapter on radiation therapy for elderly patients. He was also honored to serve as Chief Resident during his final year in the UCLA Medical Center Department of Radiation Oncology.

Dr. Wu practices at the Mission Hope Cancer Center in Santa Maria.

Jonathan Abelson, M.D.

dr abelsonDr. Abelson graduated with honors from Pomona College with a B.A. in Mathematical Economics. He obtained his M.D. from UCLA medical school, where he received the Aesculapian award for service and leadership. He completed his residency training in Radiation Oncology at Stanford University, serving as chief resident in his final year.

At Stanford, Dr. Abelson gained comprehensive training in general radiation oncology and expertise in intensity-modulated and image-guided radiation therapy (IMRT and IGRT) and in stereotactic intracranial and body radiosurgery (SRS and SBRT). Dr. Abelson has authored numerous manuscripts on various aspects of IMRT, IGRT and SBRT, and he has presented at conferences in the United States and internationally. While at Stanford he conducted a clinical trial investigating pulmonary lymphography in SBRT, and on the Central Coast he implemented SBRT and SRS programs.

Dr. Abelson is Board Certified in Radiation Oncology by the American Board of Radiology. He is a member of the American Society for Therapeutic Radiology and Oncology (ASTRO), the American Society of Clinical Oncology (ASCO), and the American College of Radiation Oncology (ACRO).

Dr. Abelson practices at North Oaks Radiation Oncology Center in Thousand Oaks, Westlake Village Radiation Oncology Center, and Simi Valley Radiation Oncology Center.

Jonathan Stella, M.D.

Dr StellaAfter completing an internal medicine internship at the East Tennessee State University College of Medicine, Dr. Stella pursued an oncology residency at the University of Miami, Jackson Hospital and a radiation oncology residency at the West Coast Cancer Foundation in San Francisco. His training included rotations through UCSF, Stanford University, and Lawrence Berkeley Lab, studying the therapeutic applications of stripped atomic nuclei. Dr. Stella is active in many societies, including the American Medical Association, the California Medical Association, and the American Society of Therapeutic Radiology and Oncology.

Dr. Stella practices at the San Luis Obispo Radiation Oncology Medical Center in San Luis Obispo.

Kaveh Maghsoudi, M.D., PhD

dr maghsoudi

Dr. Maghsoudi graduated from Stanford University with Bachelor’s and Master’s degrees in Biological Sciences.  He received his MD from Harvard Medical School and was awarded a PhD in Biostatistics from the Harvard School of Public Health.   Dr. Maghsoudi completed his medical internship at Santa Clara Valley Medical Center in San Jose, and his Radiation Oncology residency at the University of California, San Francisco where he also served as Chief Resident.

Dr. Maghsoudi’s experience in radiation therapy spans multiple treatment modalities including conventional radiation therapy, intensity-modulated radiation therapy (IMRT), stereotactic radiosurgery (SRS) for intracranial disease, stereotactic body radiotherapy (SBRT), High Dose Rate (HDR) brachytherapy, and hyperthermia.  He has been involved with statistical consulting and peer review for scientific journals including the New England Journal of Medicine.  Dr. Maghsoudi has won awards for teaching at the Harvard School of Public Health and Stanford Medical School, and has presented research at national and international meetings on central nervous system, pediatric, and gynecologic malignancies, and bioinformatics. 

Although Dr. Maghsoudi grew up in Louisiana’s Cajun Country, he has fallen in love with California and Monterey County, where he currently resides with his family.  Dr. Maghsoudi, an avid sports fan, also enjoys swimming, playing with his two children, and spending time with family and friends.

Dr. Maghsoudi practices at the Salinas Radiation Oncology Medical Center in Salinas, California.

Kenneth Biehl, M.D.

dr biehl

Kenneth Biehl, MD is a board certified radiation oncologist who received his BS in mathematics from Brigham Young University and his MD from the Washington University School of Medicine. He completed an internship in Internal Medicine St. Mary’s Health Center in Saint Louis, MO and a fellowship in the Department of Radiation Oncology at Washington University.

Dr. Biehl holds memberships in the European Society for Therapeutic Radiology and Oncology, the American Society for Therapeutic Radiology and Oncology, and the American Radium Society.

Dr. Biehl has published articles in national and international journals on treatment for female malignancies, lung cancer, head and neck cancer and DNA repair mechanisms. He has presented research at in Europe and North America and was the winner of the European Society for Therapeutic Radiation and Oncology young researcher award for work in advancing treatment for cervical and endometrial cancer.

Dr. Biehl lives with his wife and three children in Salinas, California where he enjoys coaching his daughter’s softball team, working with the Boy Scouts of America, trail running, mountain biking, and surfing. Dr. Biehl is fluent in Spanish. (Habla Español.)

Dr. Biehl practices at Coastal Radiation Oncology Medical Group’s Salinas Radiation Oncology Center located in Salinas, California.

Lauren Tait, M.D.

dr tait

Dr. Tait graduated magna cum laude from Loyola Marymount University in Los Angeles, California with her degree in biology.  After receiving her MD in allopathic medicine from the Chicago Medical School, Rosalind Franklin University of Medicine and Science, Dr. Tait completed an internship in Internal Medicine at Advocate Illinois Masonic Medical Center where she was recognized as the outstanding intern of the year.  She completed radiation oncology residencies at Wayne State University/Detroit Medical Center and the University of California, Davis where she served as Chief Resident.

Dr. Tait has experience in a variety of radiotherapy techniques including intensity-modulated radiation therapy (IMRT), stereotactic body radiation therapy (SBRT), stereotactic radiosurgery (SRS), volumetric modulated arc therapy (VMAT) and high-dose-rate (HDR) brachytherapy for gynecologic malignancies. She has published several peer-reviewed articles and presented her research findings at numerous society meetings.  Some of her early research focused on women’s cancer issues including brachytherapy for locally advanced cervical cancer, as well as cardiac toxicity following chemoradiation therapy for esophageal carcinoma.  In addition, Dr. Tait has studied small cell and non-small cell lung cancers, and cancers of the head and neck.

Dr. Tait is a member of the American Board of Radiology (ABR), American Brachytherapy Society (ABS), American Society for Therapeutic Radiology and Oncology (ASTRO), and the American Association of Women Radiologists (AAWR).

Born and raised in Phoenix, Arizona, Dr. Tait is delighted to settle in the Central Coast of California. She enjoys spending her free time outdoors exploring the region and is an avid dog lover.

Dr. Tait practices at Coastal Radiation Oncology Group’s Lompoc Radiation Oncology Center located in Lompoc, California.

Paul Miller, M.D.

Dr MillerAfter earning degrees in Chemistry, Psychology and Chemical Engineering at the University of Kansas, Dr. Miller worked briefly as a research engineer in the aerospace field in Southern California working on the development of the space shuttle. Dr. Miller then worked in a genetics research lab at the University of Kansas where he later attended medical school and completed training in radiation oncology. Board-certified by the American College of Radiology, Dr. Miller has been an assistant clinical professor in the Department of Radiation Oncology at UCLA School of Medicine since 1990.

Dr. Miller has participated in multiple clinical trials through the years and previously held the position of principal investigator at Los Robles Regional Medical Center in Thousand Oaks, for the Southwest Oncology Group, a national cancer research organization funded by the National Cancer Institute, in cooperation with UCLA.  He has published research on high-grade brain tumors, and has actively participated in studies on breast cancer, lung cancer, and brain tumors. Dr. Miller has used his engineering background to spearhead the advancement of optimal technologies for the treatment of cancer patients within this group. He is a member of the American Medical Association (AMA), the American Society of Therapeutic Radiology and Oncology (ASTRO), and the American Society of Clinical Oncology (ASCO).

Dr. Miller practices at North Oaks Radiation Oncology Medical Center in Thousand Oaks.

Robert Hesselgesser, M.D.

Dr HesselgesserDr. Hesselgesser is a graduate of USC and New York Medical College and completed his residency in radiation oncology at the LA County USC Medical Center. Board-certified in radiation oncology in 1975, Dr. Hesselgesser is a member of the American Medical Association, the American Society of Clinical Oncology (ASCO), the American College of Radiology, the American Society of Therapeutic Radiology and Oncology (ASTRO) and the American Endocurietherapy Society. Dr. Hesselgesser is a specialist in radioactive implants with high and low dose rate Iridium-192, and has lectured internationally on the topic, including its use in lung, brain and nasopharyngeal tumors.

Dr. Hesselgesser practices with North Oaks Radiation Oncology Center in Thousand Oaks and Westlake Radiation Oncology Center in Westlake Village.

Thomas Fogel, M.D.

dr fogelDr. Fogel has been with Coastal Radiation Oncology Medical Group since 1985 and served as practice president from 1996 to 2002. After graduating from Rensselaer Polytechnic Institute and Albany Medical College in New York, Dr. Fogel completed residencies at Brown University Program in internal medicine and Yale University School of Medicine in radiation oncology. He is board-certified in both internal medicine and radiation oncology and is an honorary life member of the Board of Directors of the American Cancer Society, and is a past president of the California division.

He has published widely and has numerous research interests, including transperineal implants in patients with prostate cancer. He is a member of the American Society of Radiation Oncology (ASTRO), American Society of Clinical Oncology (ASCO), American College of Radiology (ACR), and is a fellow of the American College of Radiation Oncology (ACRO).

Dr. Fogel practices at the Cabrillo Radiation Oncology Center in Ventura.