Clinicians affiliated with Radia Oregon Radiology Medical Group LLC

121 clinicians on file with this group · most practice in Seattle-Tacoma-Bellevue, WA · PAC ID 2961852637

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

120 clinicians affiliated with Radia Oregon Radiology Medical Group LLC are in the 2024 Medicare Part B data, 117 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 · Diagnostic Radiology (114) · Interventional Radiology (3) · Physician Assistant (3)

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

Clinicians affiliated with Radia Oregon Radiology Medical Group LLC, 2024

Alphabetical by last name; 101–120 of 120.

NameSpecialtyCity
John N Simmons, M.D.Diagnostic RadiologyMedford, OR
Hartley M Sirkis, M.D.Diagnostic RadiologyLynnwood, WA
Rafal L Sosnowski, D.O.Diagnostic RadiologyMaywood, IL
Luke E Stall, MDDiagnostic RadiologyMonaca, PA
Lloyd E Stambaugh, MDDiagnostic RadiologyLynnwood, WA
Karl E Stien, M.D.Diagnostic RadiologyEau Claire, WI
Cedric C Strange, MDDiagnostic RadiologyCape Girardeau, MO
Daniel Susanto, MDDiagnostic RadiologyLynnwood, WA
David D Timm, M.D.Diagnostic RadiologyIron Mountain, MI
Michael TranDiagnostic RadiologyHouston, TX
Brian C Tryon, MDDiagnostic RadiologyLynnwood, WA
Nicole M Tuminaro, PA-CPhysician AssistantMedford, OR
Marco A Ugas, M.D.Diagnostic RadiologyBend, OR
Shaheen I Umar, MDDiagnostic RadiologySpokane Valley, WA
Seth Urban, MDInterventional RadiologyMedford, OR
Alfonso R Urdaneta-Moncada, MDDiagnostic RadiologyLynnwood, WA
Milton L Van Hise, MDDiagnostic RadiologyLynnwood, WA
Pedro T Vieco, M.D.Diagnostic RadiologyLynnwood, WA
Mark WinklerDiagnostic RadiologyScottsdale, AZ
Carter F Yeatman, M.D.Diagnostic RadiologyLynnwood, WA

Practice locations

Listed practice locations in Arizona, California, Colorado, District of Columbia, Florida, Georgia, Hawaii, Maine, Michigan, Missouri, Montana, North Carolina, Nebraska, New Jersey, Ohio, Oklahoma, Oregon, Pennsylvania, South Carolina, Texas, Utah, Virginia, 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