At NorthMain Radiation Oncology, we believe that excellent care begins with a skilled and compassionate team of individuals. We have assembled an unmatched team of healthcare professionals dedicated to providing you with the best possible care and services. Your caregiving team consists of a Radiation Oncologist, Radiation Therapists, the Radiation Oncology Nurse, Medical Physicist and a Dosimetrist. Each is committed to you as a patient, treating you as family, and ensuring you are supported from diagnosis to recovery.
NorthMain Radiation Oncology is part of The US Oncology Network (“The Network”), a community of more than 1,200 affiliated physicians with expertise in medical oncology, hematology, radiation oncology, gynecologic oncology, urology, oncology surgery and other specialties. We believe local cancer care is better care. Practices in The Network deliver advanced integrated cancer care supported by a network of independent physicians who share expertise and resources to provide quality, value-based care close to home. The Network practices have more than 400 sites of care in over 25 states and treat over 850,000 patients annually. The Network is supported by McKesson Specialty Health, an industry leader in solutions that empower the community patient care delivery system to advance the science, technology and quality of care.
Our Cancer Care Specialists
Nicklas Oldenburg, MD, is the medical director at NorthMain Radiation Oncology. He specializes in intensity-modulated radiation therapy and prostate brachytherapy. He has a special interest in the treatment of prostate cancer and gastrointestinal malignancies.
Dr. Oldenburg believes in treating patients the same way he would like to be treated. He calls patients with results right away to reduce the anxiety of waiting and believes strongly in the level of care every healthcare professional at NorthMain provides. In his free time, Dr. Oldenburg enjoys gardening, and plants his own vegetable garden every spring.
- Physician at Beth Israel Deaconess Medical Center Instructor at Harvard Medical School (2000 to 2002)
- Areas of interest – Prostate and gastrointestinal cancers Extensive experience – Prostate implants and IMRT
- Medical School: University of North Carolina
- Internship: Beth Israel Hospital
- Residency: Chief Resident - Harvard Joint Center for Radiation Therapy
- Board Certification: Board-Certiﬁed Radiation Oncologist
Donald Joyce, MD, has 25 years of experience treating many different cancers. He joined NorthMain Radiation Oncology in 1997. His expertise includes prostate, lung, and head and neck cancers. He has extensive experience with implants for prostate cancer, intensity-modulated radiation therapy and stereotactic radiation body therapy. Dr. Joyce is an army veteran and well-equipped to treat local VA patients. Dr. Joyce became an oncologist because he genuinely enjoys patient contact. He finds his work extremely rewarding and believes in empathetic care where he puts himself in his patients’ shoes. In his free time, he enjoys traveling with his family to his favorite destinations, Hawaii and Ireland.
- Served in the U.S. Army Medical Service
- Chief of the internal medicine clinic
- Areas of interest – Prostate, lung, and head and neck cancers
- Extensive experience – IMRT and SBRT
- Medical School: Georgetown University
- Internship: Walter Reed Army Medical Center
- Residency: Walter Reed Army Medical Center
- Board Certification: Board-Certified Radiation Oncologist
Kathy Radie-Keane, MD, named Top Doctor in Rhode Island, believes in providing every patient with the most compassionate and best quality care. She originally became a doctor to do her part in curing cancer and improving quality of life for her patients. Dr. Radie-Keane believes in putting herself in her patients’ shoes and treating them the way she would like to be treated.
She is married to her husband of 35 years and they have two beautiful daughters. She believes family is everything, and in her spare time enjoys reading, exercising, knitting, and cooking.
- Areas of interest – Breast and gynecologic cancers
- Extensive experience – IMRT and SBRT
- Medical School: Tufts University School of Medicine
- Internship: Salem Hospital
- Residency: Chief Resident - Tufts-New England Medical Center, Medical College of Virginia
- Board Certification: Board-Certified Radiation Oncologist
Our Cancer Care Technologies
3-D Conformal Radiation Therapy
Three-dimensional conformal radiation therapy (3D-CRT) uses computers, CT scans and MRI scans to create detailed, three-dimensional representations of the tumor and surrounding organs. The treatment team uses these images to shape the radiation beams to match the size and shape of the tumor. The tools used to shape the radiation beams are multileaf collimators or custom fabricated heavy metal blocks inserted between the beam and the patient. Nearby normal tissue receives less radiation exposure because the radiation beams are targeted directly at the tumor.
Accelerated Partial-breast Irradiation (APBI)
Accelerated partial breast irradiation (APBI) is high-dose-rate (HDR) internal therapy for breast cancer, administered following a lumpectomy. There are several different applicators including SAVI®, Mammosite®, and Contura®. A radioactive Iridium-192 seed at the end of a metallic wire and contained within a computer-controlled HDR delivery system is directed to 50 or so pre-defined positions within a set of catheters, which are inserted into the lumpectomy site through plastic tubes or a balloon. The HDR delivery system directs the seed sequentially along each catheter tube, stopping at pre-defined dwell positions and delivering radiation along the length of the tube within the lumpectomy site and immediate surrounding area. Treatment is delivered twice a day over five treatment days. After each application, the radioactive seed is withdrawn from the tubes into a lead-lined box and the patient (now non-radioactive) can go home. After the ten treatments are completed, the balloon or catheter array is removed.
Calypso 4D Localization System ("GPS for the Body"®)
The Calypso® treatment system finds and tracks the position of the prostate or lung tumor throughout radiation treatments. Since the prostate or lung tumor can move with breathing or the filling of the bladder or rectum, it is sometimes necessary to track organ or tumor movement in real-time and turn the radiation on and off depending upon whether the target is in the right place. The system works by implanting a tiny Calypso coil into the organ. The device is energized by an external magnetic field which causes the coil to send out a radio signal that can be located by the same external device that creates the magnetic field. This is similar to the GPS systems used in cars, but on a much more local scale. The process provides the ability to view the location and movement of the prostate or lung tumor. With this precise view of the location, adjustments can be made to the direction of the radiation beams during treatment, or the beam can be turned down if the radiation cannot track the tumor.
Computer Tomography (CT) Scanning & Simulation
Computer Tomography (CT) Scanning & Simulation allows the cancer specialists to design a treatment plan specifically for the patient based on the size, location, and shape of the tumor. The patient will have three-dimensional images (CT Scans) taken. These are used with the treatment planning software that helps determine how to best deliver the radiation beams while reducing damage to surrounding areas. In some cases, it may be necessary to mark the patient’s skin with a tiny marker so that the patient is perfectly realigned in the correct position for every session of radiation therapy. The need for a temporary or permanent marker will be discussed with the patient before the simulation.
Image-Guided Radiation Therapy (IGRT)
Image-Guided Radiation Therapy (IGRT) combines three-dimensional images, such as CT scans, with the precise technology of either 3-D or intensity-modulated radiation therapy (IMRT) to pinpoint and treat cancerous tumors. The images allow the cancer specialists to precisely localize the tumor each time radiation therapy is administered. This improves both accuracy of delivery and safety by reducing radiation exposure to other areas of the body including nearby tissue and organs. IGRT is used to treat tumors in areas of the body that are prone to movement, such as the lungs, liver, and prostate gland, as well as tumors located close to critical organs and tissues.
Intensity-Modulated Radiation Therapy (IMRT)
Intensity-modulated radiation therapy (IMRT) is an advanced form of external radiation treatment that allows precise targeting of tumor cells. The CT simulator localization scan or other three-dimensional images provide the radiation oncologist with an understanding of the shape and location of the tumor. With 3D planning, the radiation oncologist specifies the dose from various beams and sums up those doses to calculate the dose to tumor and normal tissue (forward planning). With IMRT, the radiation oncologist specifies the dose desired to give the tumor and the doses acceptable to the normal tissues (as low as possible). Then the computer system provides millions of alternative beam positions and the varying intensities of each beam, comparing one plan to the next until the best plan is identified. This is called inverse planning. Since each beam is broken up into many sub-beams of varying intensity the process is called intensity-modulated radiation.
Low-Dose Rate (LDR) Brachytherapy
Low-dose rate (LDR) brachytherapy delivers radiation using a radioactive device or implant placed inside the body. The device delivers a low dose of radiation to a limited area over a period of 20 to 50 hours. It is one of the most focused, precise forms of radiation therapy and spares much of the surrounding tissue. LDR can be used to treat various cancer sites, such as prostate, uterus, or cervix.
Stereotactic Body Radiation Therapy (SBRT)
Stereotactic body radiotherapy (SBRT), also known as stereotactic ablative body radiation (SABR), is an advanced type of radiation therapy that delivers high doses of radiation using several beams of varying intensity aimed at a very targeted area of the body. Due to the high intensity of the radiation dose, only one to five doses are given over a single day., Treatment can take up to a week and a half when the five treatments are given every other day. Three-dimensional images, such as CT or MRI scans, are used in the simulation process to direct the beams precisely while reducing radiation exposure to other areas of the body. Patients with small, well-defined tumors who cannot tolerate surgery are good candidates for SBRT.
Stereotactic Radiosurgery (SRS)
Stereotactic radiosurgery (SRS) is a type of stereotactic radiation therapy that can be used in place of or in conjunction with surgery for single tumors that have spread to the brain. It is given in one session, although the treatment can be repeated if necessary. There are two possible SRS treatments. In one, a machine focuses approximately 200 beams of radiation on the tumor from different angles while the patient’s head is kept in the same position. In the other version, a computer-controlled linear accelerator moves around the patient’s head to deliver radiation to the tumor from different angles.
Volumetric Arc Therapy (VMAT)
Volumetric arc therapy (VMAT) is an advanced form of IMRT that allows a targeted, three-dimensional dose of radiation to be delivered directly to a tumor. The machine that delivers radiation can deliver the dose to the entire tumor in a 360-degree rotation, up to eight times faster than IMRT alone.
Your First Appointment
825 North Main St, Providence, RI 02904
Phone. (401) 521-9700 Fax. (401) 331-6718
Please arrive 15 minutes prior to your scheduled appointment and bring the following:
- Other doctor’s names and phone numbers
- Insurance cards
- Medical history
- List of medications you are currently taking
- Driver’s license, military ID or passport for photo identification
We provide assistance with insurance including pre-authorization, pre-certification for services, and assistance determining benefits. Please call if you have any questions.
The patient portal allows patients to manage their personal health
information electronically at their own convenience.