Radiation Oncologists in Rhode Island
Data updated monthly · Last refresh October 2026
29 Radiation Oncology providers practice in Rhode Island, including 7 (24%) offering telehealth. The largest concentration is in Providence. Profiles include federal Open Payments records of money received from drug and device companies in 2025. Listings are drawn from federal public records and are not endorsements.
29providers
7telehealth
Providencetop city
Radiation Oncology by city in Rhode Island
Choose a city to see providers there.
Where Radiation Oncologists in Rhode Island practice
From CMS Medicare enrollment records covering 19 of the 29 providers listed here (66%). Providers who do not bill Medicare are not included in these figures.
26%solo or small practice (under 10 clinicians)
0%mid-size group (10 to 99)
74%large group or health system (100+)
Largest practice groups
| Group (as registered with Medicare) | Radiation Oncologists | All clinicians in group | Main city |
| Lifespan Physician Group Inc. | 12 | 1,151 | Providence |
| Radiosurgery Center of Rhode Island LLC | 8 | 9 | Providence |
| Southern New England Regional Cancer Center, LLC | 5 | 6 | Woonsocket |
| Roger Williams Radiation Therapy LLC | 5 | 6 | Providence |
| Brown Urology, Inc.. | 3 | 32 | Providence |
Hospitals where they hold privileges
| Hospital | City | Ownership | CMS star rating | Radiation Oncologists affiliated |
| Rhode Island Hospital | Providence | Nonprofit | 4 of 5 | 12 |
| The Miriam Hospital | Providence | Nonprofit | 4 of 5 | 9 |
| Newport Hospital | Newport | Nonprofit | 4 of 5 | 5 |
| South County Hospital Inc. | Wakefield | Nonprofit | 4 of 5 | 2 |
Sources: CMS Doctors and Clinicians (August 2026) and Facility Affiliation files (August 2026); hospital ownership type and overall star rating from CMS Hospital General Information (July 2026). A clinician in several groups is counted once, in the largest group they bill through. Ownership type is what the hospital reports to CMS; it does not show private equity or other investor ownership. How we build this directory.
Radiation Oncology providers in Rhode Island
Listed by city, largest first. Payment figures come from the federal Open Payments program, which requires drug and device companies to report what they pay physicians for consulting, speaking, meals, travel and royalties. A disclosed payment is a financial relationship, not evidence of wrongdoing, and many totals reflect a single meal. Figures cover calendar year 2025.
Dr. Alexandra Sherman, M.D.Providence, RI · No drug or device payments recorded (2025) ·
(401) 456-2690 Dr. Allen Rossetti-chung, M.D., PH.D.Providence, RI · $51 in drug and device payments (2025) ·
(401) 437-5865 Dr. Andrew Kopecky, MDProvidence, RI · No drug or device payments recorded (2025) · Telehealth ·
(401) 444-8311 Dr. Brigid O'connor, M.D.Providence, RI · $23 in drug and device payments (2025) ·
(401) 444-4521 Dr. Brijal Desai, MDProvidence, RI · $2,118 in drug and device payments (2025) ·
(401) 444-3600 Dr. David Wazer, M.DProvidence, RI · No drug or device payments recorded (2025) ·
(401) 444-8311 Dr. Donald Joyce, M.D.Providence, RI · No drug or device payments recorded (2025) ·
(401) 521-9700 Dr. Esther Yu, M.D.Providence, RI · $170 in drug and device payments (2025) ·
(401) 444-4251 Dr. Gabriela Masko, M.D.Providence, RI · No drug or device payments recorded (2025) ·
(401) 521-9700 Dr. Jessica Yancey, MDProvidence, RI · No drug or device payments recorded (2025) · Telehealth ·
(401) 456-2690 Dr. John Coen, MDProvidence, RI · No drug or device payments recorded (2025) ·
(401) 456-2690 Dr. Jonathan Glanzman, MDProvidence, RI · No drug or device payments recorded (2025) ·
(401) 444-8311 Dr. Kara Leonard, M.D.Providence, RI · No drug or device payments recorded (2025) · Telehealth ·
(401) 444-8311 Dr. Kathy Radie Keane, M.D.Providence, RI · No drug or device payments recorded (2025) ·
(401) 521-9700 Dr. Mohamedyakub Puthawala, M.DProvidence, RI · No drug or device payments recorded (2025) · Telehealth ·
(401) 444-8311 Dr. Nicklas Oldenburg, M.D.Providence, RI · $157 in drug and device payments (2025) ·
(401) 521-9700 Dr. Paul Koffer, M.D.Providence, RI · No drug or device payments recorded (2025) · Telehealth ·
(401) 444-3600 Dr. Paul Rava, MD, PHDProvidence, RI · No drug or device payments recorded (2025) · Telehealth ·
(401) 444-8311 Dr. Sana Raoof, MD, PHDProvidence, RI · $3,844 in drug and device payments (2025) ·
(401) 444-8311 Dr. Scott Triedman, M.D.Providence, RI · No drug or device payments recorded (2025) ·
(401) 521-9700 Dr. Shirin Sioshansi, M.D.Providence, RI · No drug or device payments recorded (2025) ·
(401) 444-8311 Dr. Thomas Dipetrillo, M.DProvidence, RI · $106 in drug and device payments (2025) · Telehealth ·
(401) 444-8311 Dr. Tak-po Yu, M.D.Slatersville, RI · No drug or device payments recorded (2025) ·
(401) 766-3657 Dr. James Assif, MDWakefield, RI · $131 in drug and device payments (2025) ·
(401) 284-0850 Dr. Philip Maddock, MD, FRCRWarwick, RI · No drug or device payments recorded (2025) ·
(401) 732-2300 Dr. Prakash Chougule, M.D.Warwick, RI · No drug or device payments recorded (2025) ·
(401) 732-2300 Dr. Rashmi Benda, M.D.Warwick, RI · No drug or device payments recorded (2025) ·
(401) 732-2300 Dr. Martin Fuss, M.D.Woonsocket, RI · $128 in drug and device payments (2025) ·
(401) 356-1701 Dr. Michael Katin, MDWoonsocket, RI · No drug or device payments recorded (2025) ·
(401) 356-1701 Common questions
How many Radiation Oncology providers are in Rhode Island?There are 29 Radiation Oncology providers with active NPI records practicing in Rhode Island, according to federal NPPES data refreshed monthly.
Do Radiation Oncology providers in Rhode Island offer telehealth?Yes. 7 of the 29 Radiation Oncology providers in Rhode Island (about 24%) report offering telehealth services in CMS data.
Which cities in Rhode Island have the most Radiation Oncology providers?Providence (22), Warwick (3), Woonsocket (2) have the highest concentration of Radiation Oncology providers in Rhode Island.
How many Radiation Oncology providers in Rhode Island received drug or device company payments?9 of 29 Radiation Oncology providers in Rhode Island (31%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.
Where does this data come from?Provider counts and profiles come from the federal NPPES registry and CMS Doctors and Clinicians files. Payment figures come from the CMS Open Payments program for calendar year 2025. The directory refreshes monthly.
Do most Radiation Oncologists in Rhode Island work in independent practices or large health systems?Among 19 Radiation Oncologists in Rhode Island enrolled in Medicare, 26% bill through a solo or small practice with fewer than 10 clinicians, 0% through a mid-size group of 10 to 99, and 74% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.
Which hospitals do Radiation Oncologists in Rhode Island work at?According to CMS facility affiliation records, the Rhode Island hospitals where the most Radiation Oncologists hold privileges are Rhode Island Hospital in Providence; The Miriam Hospital in Providence; Newport Hospital in Newport.
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