Clinicians affiliated with Tumor Institute Radiation Oncology Group LLP

16 clinicians on file with this group · most practice in Seattle-Tacoma-Bellevue, WA · PAC ID 3779470463

Affiliation snapshotOctober 2, 2026CMS Doctors and Clinicians file, current snapshot (no end-of-2024 archive), applied to 2024
Activity year2024Medicare Part B claims, Original Medicare fee-for-service

16 clinicians affiliated with Tumor Institute Radiation Oncology Group LLP are in the 2024 Medicare Part B data, 15 of them physicians. Data years with affiliated clinicians: 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024.

Each clinician's exact figures are in their Physician Report, from their page; a specialty's figures in this market are in a Market Comparison. View sample report · Already purchased? Open your report

Affiliated clinicians by specialty, 2024

All specialties · Radiation Oncology (15) · Nurse Practitioner (1)

Specialty links go to the specialty in Seattle-Tacoma-Bellevue, WA.

Clinicians affiliated with Tumor Institute Radiation Oncology Group LLP, 2024

Alphabetical by last name; 16.

NameSpecialtyCity
Todd A Barnett, M.D.Radiation OncologySeattle, WA
James H Brashears, MDRadiation OncologySeattle, WA
Daniela Buscariollo, M.D.Radiation OncologyBoston, MA
Robert M Douglas, M.D.Radiation OncologyRenton, WA
Lindsey Eaton, ARNPNurse PractitionerSeattle, WA
Steve M Eulau, M.D.Radiation OncologySeattle, WA
Li-Ming C Fang, MDRadiation OncologySeattle, WA
Daniel M Landis, M.D.Radiation OncologySeattle, WA
Christopher R Loiselle, M.D.Radiation OncologySeattle, WA
Vivek K Mehta, M.D.Radiation OncologySeattle, WA
Robert M Meier, M.D.Radiation OncologySeattle, WA
Astrid D Morris, M.D.Radiation OncologySeattle, WA
Reith Sarkar, MDRadiation OncologySeattle, WA
James F Spiegel, M.D.Radiation OncologyIssaquah, WA
Robert K Takamiya, M.D.Radiation OncologyEdmonds, WA
Jacob W Trotter, MDRadiation OncologySeattle, WA

Practice locations

Listed practice locations in Washington.

Source: CMS Doctors and Clinicians National Downloadable File, snapshot October 2, 2026.

Membership comes from the CMS Doctors and Clinicians file. CMS does not publish an end-of-year archive of it, so the current snapshot is applied to every data year. A clinician affiliated with several groups or hospitals appears on each of their pages. How group pages are built · Limitations