Doctors & Support Staff

Dr. Mahmoudieh has been a vital member of El Portal Comprehensive Cancer Centers since 2008, bringing over a decade of dedicated experience to patient care. Before joining our team, he served as the Director of the Prostate Brachytherapy Program at Kaiser Permanente in Sacramento and Roseville, demonstrating his leadership in advanced cancer treatments.

He earned his medical degree from the Albert Szent-Györgyi School of Medicine in Szeged, Hungary, in 1996. With a strong interest in treating head, neck, and breast cancers, Dr. Mahmoudieh specializes in cutting-edge techniques such as Image-Guided Radiation Therapy (IGRT) and Intensity-Modulated Radiation Therapy (IMRT). His expertise extends to treating cancers of the head and neck, lung, gastrointestinal tract, and prostate.

A committed professional, Dr. Mahmoudieh is a member of the American Society for Therapeutic Radiology and Oncology (ASTRO), reflecting his engagement with ongoing developments in cancer treatment and research. His compassionate approach and advanced skill set ensure that each patient receives personalized, state-of-the-art care.

Outside of his professional life, Dr. Mahmoudieh enjoys traveling with his son and daughter, as well as reading and playing racquetball, embracing a balanced and active lifestyle. His dedication to both his patients and his personal passions makes him a trusted partner in your journey toward health.

Dr. Elhanafy is a highly respected Associate Professor of Medical Physics and serves as the Chief Medical Physicist at El Portal Comprehensive Cancer Centers since July 2013. He earned his Ph.D. in Medical Physics from the University of Wisconsin, Madison—where he began his foundational training and completed his thesis—in 2013, building on his initial joining of the university in 1999.

 With specialized training in advanced radiation oncology techniques—such as Intensity-Modulated Radiation Therapy (IMRT), High-Dose Rate Brachytherapy (HDR), Stereotactic Radiosurgery (SRS), Total Body Irradiation (TBI), Quality Assurance, and Radiobiology—Dr. Elhanafy brings a wealth of expertise to patient care. His dedication to the field is evident through numerous published research articles, as well as awards recognizing his leadership in organizing conferences, training sessions, lectures, and workshops.

Beyond his impressive credentials, Dr. Elhanafy is deeply committed to advancing medical physics and ensuring the best possible outcomes for his patients. His compassionate approach, combined with his extensive knowledge, makes him a trusted partner in your cancer care journey.

Outside of his professional pursuits, he values spending quality time with his family, reflecting his genuine care and balance in life.

Dr. Ahuja is a distinguished, board-certified Medical Oncologist with extensive training in medical hematology. He has refined his expertise at renowned institutions such as Tata Memorial Hospital, UCLA School of Medicine, and Roswell Park, under the mentorship of esteemed hematologists including Dr. S.H. Advani, Dr. Michael Caligiuri, and Dr. M.J. Cline.

With over 25 years of experience in both hematology and oncology, Dr. Ahuja offers a deep well of knowledge and a compassionate approach to patient care at El Portal Cancer Center. His dedication to advancing the field is reflected through active membership in prestigious professional organizations, including the American Society of Hematology, the American Society of Clinical Oncology, the European Society of Medical Oncology, and the Indian Society of Medical and Pediatric Oncology.

A passionate researcher, Dr. Ahuja has contributed significantly to ongoing scientific advancements—serving on the NRG Breast Committee and the Rare Subtype Committee, and acting as Principal Investigator for the “CROWN” NCORP study. His commitment to clinical excellence and groundbreaking research underscores his dedication to improving outcomes for his patients.

Outside of his professional pursuits, Dr. Ahuja values spending quality time with his family, and enjoys hiking and traveling, embracing life outside the clinic with the same dedication he brings to his medical practice. His compassionate nature and extensive experience make him a trusted partner in your cancer care journey.

Dr. Crain is a highly experienced and board-certified Medical Oncologist and Hematologist with over 45 years of dedicated service in the medical field. Throughout his distinguished career, he has established himself as a leading expert in the diagnosis, treatment, and prevention of various cancers and blood disorders.

He earned his medical degree from the University of Illinois College of Medicine in 1977 and is actively affiliated with esteemed institutions, including Adventist Health St. Helena. Dr. Crain’s extensive experience spans a broad range of conditions, including small intestine and colorectal cancers, breast cancer, prostate cancer, anemia, leukemia, and lymphoma.

Beyond his clinical expertise, Dr. Crain is deeply committed to advancing medical research and improving patient care. His approach to treatment is rooted in compassion and a thorough understanding of complex medical conditions, ensuring each patient receives personalized, comprehensive care.

Recognized for his empathetic nature and unwavering dedication, Dr. Crain strives to achieve the best possible outcomes for his patients and foster a trusting, supportive environment. His lifelong commitment to the fields of oncology and hematology reflects his passion for making a meaningful difference in his patients’ lives.

Michael Kangas serves as the Director of Oncology and Diagnostic Imaging, where he spearheads initiatives that enhance revenue, profitability, productivity, and patient satisfaction within an underserved area. His leadership is instrumental in developing and guiding a highly skilled team of healthcare professionals across multiple clinics, providing comprehensive cancer care and diagnostic imaging services utilizing the most advanced technology. Michael’s commitment is rooted in delivering personalized, high-quality care to each patient, ensuring they receive the support they need throughout their journey.

With extensive expertise in Health Information Management, Electronic Medical Records (EMR), Radiation Therapy, Radiation Oncology, Clinical Operations, Healthcare Compliance, and Regulatory Standards, Michael ensures that all services meet the highest industry standards. He also focuses on monitoring performance, healthcare marketing, and supervisory skills to foster a collaborative, efficient, and patient-centered environment.

In addition to his clinical leadership, Michael actively volunteers with the Merced Cancer Society Foundation as its Executive Director. In this role, he oversees key operational and administrative functions to advance the foundation’s mission of positively impacting residents in the Central Valley. His efforts include community outreach, organizing fundraising events, and leading initiatives to expand the foundation’s support and resources for local cancer patients.

Michael’s dedication to improving healthcare and strengthening community ties highlights his unwavering commitment to healing, hope, and making a meaningful difference in the lives of those he serves.