Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Dr. Thomas Charles Sroka, MD

Individual provider Radiation Oncology Physician · NPI 1700058021

Dr. Thomas Charles Sroka, MD practises Radiation Oncology in Eugene, Oregon. Graduated from University of Arizona College of Medicine in 1997, 29 years ago. Practices with Oncology Associates of Oregon P C, a 48-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Arizona, New Hampshire and Oregon.

Years since qualifying
29
Trained at
University of Arizona College of Medicine
Licensed in
AZ, NH, OR
In the registry since
2008
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

520 Country Clb
Eugene, OR 97401-6036
Phone: (541) 683-5001
Fax: (541) 683-1422
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Radiation Oncology Physician (primary) Taxonomy 2085R0001X · Licence MD172744 (OR)
Radiation Oncology Physician Taxonomy 2085R0001X · Licence 82131 (AZ)
Radiation Oncology Physician Taxonomy 2085R0001X · Licence 15775 (NH)

Record details

NPI number1700058021
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 26, 2008
Last updated in NPPESJuly 15, 2021
Certification dateJuly 15, 2021

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyRADIATION ONCOLOGY
Medical schoolUNIVERSITY OF ARIZONA COLLEGE OF MEDICINE
Graduated 1997 (29 years in practice)
Group practice Oncology Associates Of Oregon P C — 48 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients214
Services billed 3,133 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Travel and Lodging $516 3 payments · travel or lodging paid or reimbursed, such as to attend a conference
Food and Beverage $101 3 payments · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Oncology Associates of Oregon P C

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 48 clinicians in the practice; 12 are shown here.

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