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Meet Our World-Class Oncologists in Los Angeles

With a broad range of specialties and backgrounds, our handpicked team of doctors is internationally recognized as leaders in cancer diagnosis, advanced imaging, and treatment, such as radiology. We work together to provide the highest level of care. At our clinic, you'll experience a healing and supportive environment that provides balanced and thorough cancer diagnostics and treatment options. The Beverly Hills Cancer Center is proud to provide you with a team of the best oncologists in Los Angeles, available worldwide.

Oncologists and Hematologists

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Afshin Eli Gabayan, M.D.

Medical Director, Beverly Hills Cancer Center
Board-Certified in Hematology & Oncology
Leading Oncologist and Clinical Researcher in Los Angeles

Dr. Afshin Eli Gabayan, known professionally as A. Eli Gabayan, M.D., is a highly respected hematologist and medical oncologist with a longstanding commitment to delivering the most effective, evidence-based therapies for cancer patients. As Medical Director of the Beverly Hills Cancer Center, Dr. Gabayan is pivotal in driving the center’s mission to offer comprehensive, compassionate, and innovative care.

Education & Medical Training

  • Medical Degree – University of Southern California (USC) School of Medicine

    • Recognized for academic excellence and early interest in translational oncology

Academic Appointments

  • Former Assistant Clinical Professor – David Geffen School of Medicine at UCLA

    • Contributed to academic instruction, mentorship, and program development in oncology

Clinical Focus & Research

Dr. Gabayan is actively involved in clinical trials and cancer research studies. He is deeply committed to exploring emerging therapies that improve cancer patients' outcomes and quality of life. His leadership has helped bring cutting-edge treatments to the community level, bridging advanced research and direct patient care.

Philosophy of Care

Known for his patient-first philosophy, Dr. Gabayan emphasizes personalized treatment strategies grounded in both scientific innovation and clinical compassion. His goal is to ensure every patient has access to the latest advances in oncology, delivered with unwavering dedication and respect.

Linnea I. Chap, M.D.

Director of Breast Cancer and Women’s Oncology
Board-Certified in Internal Medicine, Hematology, and Medical Oncology
Recognized Among “America’s Top Doctors for Cancer”

Dr. Linnea I. Chap is a distinguished medical oncologist specializing in breast cancer and gynecologic malignancies. As the Director of Breast Cancer and Women’s Oncology, she is a recognized leader in her field, dedicated to advancing the care of women with complex oncologic conditions. Her expertise is rooted in both clinical excellence and academic leadership, and she is repeatedly honored as one of the nation’s top cancer specialists.

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Education & Medical Training

  • B.S. in Chemistry – University of Illinois

    • Graduated Summa Cum Laude with High Honors

  • Medical Degree – The University of Chicago, Pritzker School of Medicine (1988)

  • Residency – Internal Medicine, Northwestern Memorial Hospital (1989–1991)

  • Fellowship – Hematology & Oncology, UCLA Medical Center (1991–1994)

Academic & Faculty Appointments

Following her fellowship, Dr. Chap joined the faculty at the David Geffen School of Medicine at UCLA, where she was appointed Associate Clinical Professor of Medical Oncology. During her tenure, she also served as Co-Director of the UCLA/Revlon Multidisciplinary Breast Clinic, helping shape multidisciplinary approaches to breast cancer care.

Clinical Focus & Expertise

  • Breast Cancer

  • Gynecologic Cancers

  • Clinical Trials & Translational Research

Dr. Chap is passionate about applying the latest scientific discoveries to patient care and has been at the forefront of incorporating novel therapies and precision medicine into women’s oncology.

Board Certifications

  • Internal Medicine

  • Hematology

  • Medical Oncology

Awards & Honors

Dr. Chap’s exceptional contributions to medicine have been recognized through numerous prestigious honors, including:

  • Exceptional Women in Medicine: 2019, 2020, 2021, 2022, 2023

  • America’s Top Doctors (Castle Connolly, print & digital): 2nd–14th Editions

  • America’s Top Doctors for Cancer (Castle Connolly, print & digital): 1st–10th Editions

  • Castle Connolly Digital Guides: 2016–2021

  • Modern Luxury Los Angeles: 2022

Doctor

Michael Castro, M.D.

Neuro-Oncologist | Medical Oncologist | Expert in Molecular Oncology & Precision Medicine

Dr. Michael Castro is a highly respected neuro-oncologist and medical oncologist with board certifications in medical hematology and internal medicine. He is renowned for his work in molecular oncology, precision medicine, and immunotherapy, bringing a deeply personalized approach to cancer treatment.

Expertise & Clinical Focus

Dr. Castro specializes in the integration of molecular profiling and mechanism-based treatment strategies to combat cancer. His approach emphasizes precision targeting of the biological processes that drive each individual’s disease, enabling more effective, personalized therapies—especially for treatment-resistant cancers.

Research & Program Development

With a strong background in clinical research and oncology program development, Dr. Castro is widely regarded as a leading industry resource in molecular diagnostics. His work is centered on constructing a comprehensive molecular diagnosis for each patient, identifying the operative biological pathways and engineering strategies to disarm the malignant phenotype.

Philosophy of Care

Dr. Castro’s mission is to achieve an engineering-level understanding of cancer pathogenesis on a per-patient basis. By decoding the biological mechanisms driving tumor behavior, he aims to neutralize treatment resistance and guide highly specific, effective therapeutic interventions.

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Radiation Oncologists

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Arash "Ari" Gabayan, MD

Medical Director of Radiation Oncology | Board-Certified Radiation Oncologist
Recognized as a “Top Doctor” (2018–2024)

Dr. Arash "Ari" Gabayan is a board-certified radiation oncologist and the Medical Director of Radiation Oncology at Beverly Hills Cancer Center. He is known for his compassionate approach to patient care and his ongoing commitment to advancing the field through cutting-edge clinical research.

Education & Academic Distinction

  • Undergraduate – University of California, Los Angeles (UCLA)

    • Major: Neuroscience

    • Graduated Summa Cum Laude with College Honors

    • Recipient of multiple academic honors, including the University of California Regents Scholarship

  • Medical School – David Geffen School of Medicine, UCLA

  • Internship – University of California, San Francisco (UCSF)

  • Residency – University of Arizona, Department of Radiation Oncology

    • Served as Chief Resident

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Professional Highlights

  • Board certified in Radiation Oncology

  • Named one of the region’s “Top Doctors” for seven consecutive years (2018–2024)

  • Combines deep medical expertise with a personalized, patient-centered care philosophy

Clinical Focus

Dr. Gabayan is deeply committed to providing his patients with state-of-the-art cancer treatment grounded in scientific rigor and delivered with compassion. His clinical leadership ensures the integration of the latest advances in radiation oncology into daily patient care.

Doctor

Armand Bouzaglou, M.D., F.A.C.R.

Board-Certified Radiation Oncologist | Fellow, American College of Radiology

Dr. Armand Bouzaglou is a highly accomplished, board-certified radiation oncologist with a specialty focus on brain and prostate tumors and high-dose rate (HDR) implants. He has over 15 years of experience in these areas and is deeply committed to advancing cancer care through both clinical excellence and research innovation.

Education & Training

  • Medical Degree – University of Illinois, Chicago
  • Internship – Internal Medicine, 1974
  • Residency – Radiation Oncology, LAC-USC Medical School
  • Chief Resident – Radiation Oncology, LAC-USC
  • Fellowship – Institute Gustave Roussy (Villejuif, France)
    • Studied Paris System of Dosimetry in Interstitial Implants
    • Participated in brain tumor implant research at Hospital St. Anne, Paris

Academic & Professional Roles

  • Assistant Clinical Professor of Radiation Oncology – LAC/USC Medical Center
  • Board of Directors – CHW, Southern California
  • Fellow – American College of Radiology

Research & Clinical Impact

Dr. Bouzaglou has been actively involved in National Cancer Institute (NCI)-sponsored research through collaborations with SWOG, RTOG, and NSABP for over 15 years. He also served as the initial Principal Investigator for the Community Clinical Oncology Program (CCOP).

In collaboration with Dr. Peter Dyck, he has treated over 250 brain lesions using Iridium-192, achieving a doubling of survival rates in patients with Glioblastoma Multiforme.

Publications & Contributions

He has authored numerous peer-reviewed articles and contributed to textbooks in radiation oncology, advancing clinical understanding and best practices in the field.

Mission & Philosophy

Dr. Bouzaglou is dedicated to developing a “Center of Excellence” focused on enhancing treatment outcomes for brain and prostate cancers. He is recognized for delivering high-quality, compassionate care that ensures continuity and addresses the broader health concerns of his patients.

Current Role

Dr. Bouzaglou is a leading member of the Beverly Hills Cancer Center, where he brings his extensive expertise and commitment to excellence in Radiation Medicine, making a significant impact on the lives of his patients.

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To schedule an appointment, please call Beverly Hills Cancer Center in Beverly Hills, California at (877) 320-5131 or Click the link below to access our Online Appointment Request

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