Radiation Oncologists in Tennessee
Data updated monthly · Last refresh October 2026
133 Radiation Oncology providers practice in Tennessee, including 27 (20%) offering telehealth. The largest concentration is in Nashville. 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.
133providers
27telehealth
Nashvilletop city
Radiation Oncology by city in Tennessee
Choose a city to see providers there.
Radiation Oncology providers in Tennessee
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. Evan Osmundson, M.D.,PH.D.Nashville, TN · $2,870 in drug and device payments (2025) · Telehealth ·
(615) 936-2000 Dr. Han-chih Chang, M.D.Nashville, TN · $30,235 in drug and device payments (2025) · Telehealth ·
(615) 322-3000 Dr. James Gray, M.D.Nashville, TN · $2,721 in drug and device payments (2025) · Telehealth ·
(615) 342-4850 Dr. Jayden GracieNashville, TN · No drug or device payments recorded (2025) ·
(615) 322-5000 Dr. John Phillips, M.D. (MAY 2010)Nashville, TN · $1,213 in drug and device payments (2025) ·
(615) 222-6755 Dr. Joshua Mondschein, MDNashville, TN · $210 in drug and device payments (2025) · Telehealth ·
(615) 222-6755 Dr. Julian Heitz, MDNashville, TN · No drug or device payments recorded (2025) ·
(615) 284-7785 Dr. Kaleb Darrow, MDNashville, TN · $91 in drug and device payments (2025) ·
(615) 322-5000 Dr. Karen Winkfield, MD, PHDNashville, TN · $146 in drug and device payments (2025) ·
(615) 936-2000 Dr. Katherine Castle, M.D.Nashville, TN · $25 in drug and device payments (2025) · Telehealth ·
(615) 312-3333 Dr. Kenneth Niermann, MDNashville, TN · No drug or device payments recorded (2025) ·
(615) 322-3000 Dr. Khush Aujla, MDNashville, TN · No drug or device payments recorded (2025) · Telehealth ·
(615) 322-3000 Dr. Leo Luo, MDNashville, TN · No drug or device payments recorded (2025) · Telehealth ·
(615) 936-2000 Dr. Marion Bolin, M.D.Nashville, TN · No drug or device payments recorded (2025) ·
(615) 222-6755 Dr. Mark Sittig, MDNashville, TN · $499 in drug and device payments (2025) ·
(615) 284-7785 Dr. Mersiha Hadziahmetovic, M.D.Nashville, TN · $102 in drug and device payments (2025) · Telehealth ·
(615) 517-0866 Dr. Milad Baradaran GhahfarokhiNashville, TN · No drug or device payments recorded (2025) ·
(615) 343-9241 Dr. My Nguyen, M.D.Nashville, TN · $597 in drug and device payments (2025) ·
(615) 769-2300 Dr. Natalie Lockney, M.D.Nashville, TN · No drug or device payments recorded (2025) · Telehealth ·
(615) 322-3000 Dr. Scott Strickler, MDNashville, TN · $356 in drug and device payments (2025) ·
(615) 342-4850 Dr. Sean All, MDNashville, TN · No drug or device payments recorded (2025) · Telehealth ·
(615) 322-3000 Dr. Thomas Hunter, M.D.Nashville, TN · No drug or device payments recorded (2025) ·
(615) 222-6755 Dr. Todd Tenenholz, MDNashville, TN · No drug or device payments recorded (2025) · Telehealth ·
(615) 322-3000 Dr. Zachary Kohutek, M.D., PH.D.Nashville, TN · No drug or device payments recorded (2025) · Telehealth ·
(615) 322-3000 Dr. Elliot Navo, M.D.Oak Ridge, TN · No drug or device payments recorded (2025) ·
(865) 835-4500 Dr. Erica Northern, MSPowell, TN · No drug or device payments recorded (2025) ·
(865) 255-1316 Dr. Natasa Townsend, M.D.Sevierville, TN · No drug or device payments recorded (2025) ·
(865) 446-9125 Dr. Daniel Garner, MDSmyrna, TN · No drug or device payments recorded (2025) ·
(615) 768-2855 Dr. Lauren Kropp, M.D.Tullahoma, TN · $156 in drug and device payments (2025) · Telehealth ·
(931) 454-9002 Dr. William Bradford, M.D.Tullahoma, TN · $47 in drug and device payments (2025) ·
(931) 454-9423 Dr. Kevin Collins, MDUnion City, TN · $574 in drug and device payments (2025) ·
(731) 884-1412 Common questions
How many Radiation Oncology providers are in Tennessee?There are 133 Radiation Oncology providers with active NPI records practicing in Tennessee, according to federal NPPES data refreshed monthly.
Do Radiation Oncology providers in Tennessee offer telehealth?Yes. 27 of the 133 Radiation Oncology providers in Tennessee (about 20%) report offering telehealth services in CMS data.
Which cities in Tennessee have the most Radiation Oncology providers?Nashville (37), Memphis (20), Knoxville (15) have the highest concentration of Radiation Oncology providers in Tennessee.
How many Radiation Oncology providers in Tennessee received drug or device company payments?73 of 133 Radiation Oncology providers in Tennessee (55%) 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 Tennessee work in independent practices or large health systems?Among 91 Radiation Oncologists in Tennessee enrolled in Medicare, 24% bill through a solo or small practice with fewer than 10 clinicians, 12% through a mid-size group of 10 to 99, and 64% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.
Which hospitals do Radiation Oncologists in Tennessee work at?According to CMS facility affiliation records, the Tennessee hospitals where the most Radiation Oncologists hold privileges are Vanderbilt University Medical Center in Nashville; Vanderbilt Wilson County Hospital in Lebanon; Memorial Healthcare System, Inc. in Chattanooga.
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