Radiation Oncology Team

The department of Radiation Oncology is dedicated to providing exceptional care to our patients while offering both conventional and leading-edge approaches to radiation treatment and care. Our clinicians are experts in their field, including brachytherapy, stereotactic radiosurgery, and palliative approaches to treatment.

Tatiana I. Lingos, MD

Director of Network Development, Radiation Oncology

Specialty: Radiation Oncology/Therapeutic Radiology
Medical Education: University of Massachusetts Medical School
Internship: Mount Auburn Hospital
Residency: Massachusetts General Hospital, Chief Resident
Board Certified: Therapeutic Radiology
Clinical Interest: Breast cancer, skin cancer, sarcomas, gastrointestinal malignancies, general radiation oncology, intensity-modulated radiation therapy (IMRT).

Peter F. Orio, III, DO

Vice Chair of Network Operations, Radiation Oncology

Specialty: Radiation Oncology
Medical Education: University of New England College of Osteopathic Medicine
Internship: Brooke Army Medical Center
Residency: University of Washington Medical Center
Board Certified: Radiation Oncology
Clinical Interests: Prostate brachytherapy, genitourinary malignancies, gastrointestinal malignancies, lung cancer, intensity-modulated radiation therapy (IMRT) and image-guided radiation therapy (IGRT).

Bruce Borgelt, MD, PhD, MPH

Specialty: Radiation Oncology
Medical Education: Jefferson Medical College
Internship: Thomas Jefferson University Hospital
Residency: Thomas Jefferson University Hospital, Chief Resident in Radiation Oncology
Fellowship: American Cancer Society
Board Certified: Therapeutic Radiology

Monica Krishnan, MD

Specialty: Radiation Oncology
Medical Education: Harvard Medical School
Internship: University of Chicago Medical Center
Residency: Brigham and Women’s
Board Certified: Radiation Oncology
Clinical Interests: Palliative care, central nervous system cancers, breast cancer and gynecologic cancer.

Stephanie MacAusland, MD

Specialty: Radiation Oncology
Medical Education: University of Pittsburgh School of Medicine
Internship: Roger Williams Hospital
Residency: Tufts Medical Center
Board Certified: Radiology, Radiation Oncology
Clinical Interests: Intensity-modulated radiation therapy (IMRT) and image-guided radiation therapy (IGRT).

Itai Pashtan, MD

Specialty: Radiation Oncology
Medical Education: University of Chicago
Internship: Brigham and Women’s Hospital
Residency: Brigham and Women’s Hospital
Board Certified: Radiation Oncology
Clinical Interests: Intensity-modulated radiation therapy, stereotactic radiation therapy, head and neck cancer, breast cancer and lung cancer.

John Phillips, MD

Specialty: Radiation Oncology
Medical Education: Vanderbilt University School of Medicine, TN
Internship: University of Tennessee College of Medicine
Residency: Brigham and Women's/Harvard Medical School
Board Certified: Radiation Oncology
Clinical Interests: Intensity-modulated radiation therapy image-guided radiation therapy, stereotactic radiation therapy, central nervous system malignancies, thoracic malignancies and genitourinary malignancies.

William Powlis, MD

Specialty: Radiation Oncology
Medical Education: Columbia University
Internship: Beth Israel Hospital
Residency: Beth Israel Hospital
Fellowship: Dana-Farber Cancer Institute, Joint Center for Radiation Therapy
Board Certified: Radiology, Therapeutic Radiology
Clinical Interests: Head and neck malignancies, lymphomas, general radiation oncology.

Jennifer Pretz, MD

Specialty: Radiation Oncology
Medical Education: Stanford University School of Medicine
Internship: Massachusetts General Hospital
Residency: Brigham and Women’s Hospital/ Harvard Medical School
Board Certified: Radiation Oncology
Clinical Interests: Intensity-modulated radiation therapy and image-guided radiation therapy, breast cancer and gynecological cancer.

Ron Shiloh, MD

Specialty: Radiation Oncology
Medical Education: Emory University School of Medicine
Internship: Harvard/Brigham and Women's Hospital
Residency: Northwestern Memorial Hospital
Fellowship: Harvard Medical School
Board Certified: Internal Medicine, Radiation Oncology
Clinical Interests: Breast cancer, palliative care, gastrointestinal cancer and sarcoma.

Laura Warren, MD

Specialty: Radiation Oncology
Medical Education: Harvard Medical School
Residency: Harvard Radiation Oncology Program
Fellowship: Harvard Radiation Oncology Program
Board Eligible: Radiation Oncology
Clinical Interests: Intensity-modulated and image-guided radiation therapy, breast, throracic, and gastrointestinal malignancies.


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