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Dr. Eric C. Ko, M.D., PH.D.

Radiation Oncology (Radiation Oncology Physician)

  • Medicare participating

At a glance

Years since graduation
18
In the NPI registry since
2008
Medicare patients seen, 2024
151

The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. NPIs were first issued in May 2005 and became required on claims in 2007–2008, so an early date usually means the clinician was already in practice before then. What an NPI is

Education and training

  • 2008Medical school: State University of New York at Buffalo School of Medicine
  • 2008Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier

Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).

Specialties and state licenses

  • Radiation Oncology Physician primary
    MA license 281642

As reported to the NPI registry. To confirm a license is current, check the state medical board.

Map: Radiation Oncology per capita by county →

Where they work

Hospitals

Medical groups

Hospitals this clinician lists with Medicare, and groups they bill Medicare through (Care Compare). Affiliation doesn’t mean they see patients at every location.

Medicare patients and services

Medicare patients, 2024
151
Services billed
1,550
Patients’ average age
74
Most frequent Medicare services, 2023
ServiceTimesPatients
Stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapy30430
Calculation of radiation therapy dose15636
Ct guidance for insertion of radiation therapy fields10013
Radiation treatment management, 5 treatment sessions9242
Design and construction of complex radiation treatment device7727
Complex radiation therapy planning3332
New patient office or other outpatient visit, 45-59 minutes2727
New patient office or other outpatient visit, 60-74 minutes2424
Obtaining data needed to develop the optimal radiation treatment, 3 or more treatment areas or any number of treatment areas where special treatment is involved2221
3d radiation therapy planning2221

Medicare fee-for-service only. CMS leaves out services billed for fewer than 11 patients. These figures describe a practice’s Medicare work; they aren’t a measure of quality.

Other Radiation Oncology clinicians in Worcester

Sources

NPI registry (CMS NPPES, November 2026; record last updated November 13, 2020), Medicare Care Compare, Medicare Physician & Other Practitioners (2024), Medicare Part D Prescribers (2024) and Open Payments (2025). Information is self-reported or billed data and may be out of date; call before visiting.

NPI 1639345929. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.