Radiation Oncology

Our Division of Radiation Oncology is comprised of nine radiation oncologists and a full support team of nurses, medical physicists, dosimetrists, therapists and more, working together to treat every type of adult cancer. We collaborate with medical oncologists, surgeons, pathologists, and radiologists to provide world class care to the individual needs of the patient. Our treatment guidelines were developed in partnership with our colleagues at MD Anderson Cancer Center Houston. Using state of the art medical technology, our specialists treat patients with all modes of radiotherapy including radiosurgery, brachytherapy, intraoperative radiation, and other forms of external beam radiation therapy.

Our areas of particular interest and expertise are noted below:

Ray Lin, MD (Division Head)

Breast Oncology
Gastrointestinal Oncology
Gynecological Oncology
Sarcoma

Thomas Buchholz, MD

Breast Oncology

Chien Pong (Peter) Chen, MD, PhD

Liver Cancer
Lymphoma
Neuro Oncology
Thoracic Oncology

Norbert Kased, MD

Genitourinary Oncology
Head & Neck Oncology
Sarcoma
Thoracic Oncology

Anuradha Koka, MD

Cutaneous Oncology
Gastrointestinal Oncology
Gynecological Oncology
Breast Oncology

Eva Lean, MD

Breast Oncology
Gynecological Oncology
Lymphoma
Thoracic

Patrick Linson, MD, MPH

Cutaneous Oncology
Genitourinary Oncology
Neuro-Oncology
Thoracic Oncology

Shane Mesko, MD

Genitourinary Oncology
Head & Neck Oncology
Thoracic Oncology
Neuo-Oncology
Lymphoma

Kenneth Shimizu, MD, MPH

Breast Oncology
Genitourinary Oncology
Liver Cancer
Neuro-Oncology

Prabhakar Tripuraneni, MD

Cutaneous Oncology
Gastrointestinal Oncology
Genitourinary Oncology
Head & Neck Oncology

Advanced Practice Clinician:

Cammie Nguyen, PA

Our Radiation Oncology practice locations are noted below:

Scripps Clinic Torrey Pines – Scripps MD Anderson Cancer Center

Thomas Buchholz, MD
Chien Pong (Peter) Chen, MD, PhD
Ray Lin, MD
Patrick Linson, MD
Shane Mesko, MD
Kenneth Shimizu, MD
Prabhakar Tripuraneni, MD
Cammie Nguyen, PA

Scripps Clinic Mercy – Prebys Cancer Center

Anurada Koka, MD
Patrick Linson, MD
Shane Mesko, MD

Scripps Clinic Radiation Therapy Center Encinitas

Norbert Kased, MD
Eva Lean, MD
Patrick Linson, MD
Shane Mesko, MD
Kenneth Shimizu, MD

Scripps Clinic Radiation Therapy Center Vista

Chien Pong (Peter) Chen, MD, PhD
Norbert Kased, MD
Eva Lean, MD
Patrick Linson, MD
Kenneth Shimizu, MD

Featured Services

  • Radiosurgery using Linac based accelerators and Gamma Knife

  • Intraoperative Radiation

  • Total Body Radiation as part of bone marrow transplant

  • Intracoronary Radiation Therapy

  • Treatment of Benign Conditions- Dupuytren’s, Keloids, Heterotopic ossification

Recognitions & Awards

  • Our doctors are well known in the field for providing top notch and compassionate care.

  • Many of our physicians are voted amongst their peers to be a top doctor, both regionally and nationally ( Castle Connolly, San Diego Magazine).

  • Our physicians have served as prominent leaders in various local and national organizations.

  • Certificate of Accreditation from the American Society for Therapeutic Radiation Oncology –APEX, indicating a peer review approving of our policies and processes

Our Division provides Radiation Oncology rotations for trainees from Dermatology (including Mohs fellows), Hematology/Oncology, and Internal Medicine.

For more information or to apply, please visit the Graduate Medical Education page.

Our Division conducts research, including clinical trials, in collaboration with our Medical Oncologists and Surgeons, and with our colleagues at Scripps MD Anderson Cancer Center. Research trials that are opening in collaboration with MD Anderson include:
OPAL II – Hypofractionation Partial Breast Radiation Trial in Patients with Early Breast Cancer
Extend Trial – External Beam Radiation to Eliminate Nominal Metastatic Disease

SEE ALL SCMG RESEARCH