Dr. Athanasios Colonias, M.D.
Radiation Oncology (Radiation Oncology Physician)
- Medicare participating
At a glance
- Medical school
- Northeastern Ohio University College of Medicine (1996)
- Years since graduation
- 30
- In the NPI registry since
- 2005
- Medicare patients seen, 2024
- 174
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
- 1996Medical school: Northeastern Ohio University College of Medicine
- 2005Registered 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
PA license MD069589L -
Therapeutic Radiology Physician
PA license MD069589L
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- Allegheny General Hospital Pittsburgh, PA
- West Penn Hospital Pittsburgh, PA
- Ahn Wexford Hospital Wexford, PA
- Trinity Medical Ctr East &trinity Medical Ctr West Steubenville, OH
- Grove City Medical Center Grove City, PA
Medical groups
- Allegheny Clinic (2,389 clinicians)
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
- 174
- Services billed
- 1,953
- Patients’ average age
- 73
| Service | Times | Patients |
|---|---|---|
| Ct guidance for insertion of radiation therapy fields | 502 | 77 |
| Intensity modulated treatment delivery, single or multiple fields/arcs,via narrow spatially and temporally modulated beams, binary, dynamic mlc, per treatment session | 445 | 46 |
| Radiation treatment management, 5 treatment sessions | 128 | 42 |
| Continuing radiation therapy consultation per week | 114 | 51 |
| Design and construction of complex radiation treatment device | 91 | 27 |
| Calculation of radiation therapy dose | 76 | 37 |
| Radiation treatment delivery,3 or more separate treatment areas, custom blocking, tangential ports, wedges, rotational beam, compensators, electron beam; 11-19 mev | 71 | 12 |
| Established patient office or other outpatient visit, 30-39 minutes | 54 | 39 |
| Established patient office or other outpatient visit, 20-29 minutes | 42 | 35 |
| Complex radiation therapy planning | 41 | 40 |
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.
Medicare prescriptions
| Drug | Prescriptions |
|---|---|
| Tamsulosin Hcl Other prescribers in Pittsburgh, PA | 100 |
| Oxycodone Hcl Other prescribers in Pittsburgh, PA | 16 |
Prescriptions filled under Medicare Part D, including refills. CMS leaves out drugs prescribed fewer than 11 times.
Payments from drug and device companies
In 2025, 3 companies reported 15 payments worth $4,440 in total to this clinician.
| Elekta, Inc. | $2,998 |
|---|---|
| Siemens Medical Solutions USA, Inc. | $1,320 |
| Visionrt, Inc. | $122 |
| Travel and Lodging | $3,515 |
|---|---|
| Food and Beverage | $925 |
What the payments were for
| Company | What it was for | Amount |
|---|---|---|
| Elekta, Inc. Jul 21, 2025 | Travel and Lodging ELEKTA MEDICAL LINEAR ACCELERATOR · LINAC SOLUTIONS (LINAC) · travel to LONDON, Great Britain (UK) | $1,612 |
| Siemens Medical Solutions USA, Inc. Aug 26, 2025 | Travel and Lodging Varian Ethos Treatment Planning · Oncology · travel to Philadelphia, PA · in-kind | $751 |
| Elekta, Inc. Aug 19, 2025 | Travel and Lodging ELEKTA MEDICAL LINEAR ACCELERATOR · LINAC SOLUTIONS (LINAC) · travel to LONDON, Great Britain (UK) | $324 |
| Elekta, Inc. Aug 18, 2025 | Travel and Lodging ELEKTA MEDICAL LINEAR ACCELERATOR · LINAC SOLUTIONS (LINAC) · travel to LONDON, Great Britain (UK) | $322 |
| Elekta, Inc. Jul 21, 2025 | Travel and Lodging ELEKTA MEDICAL LINEAR ACCELERATOR · LINAC SOLUTIONS (LINAC) · travel to LONDON, Great Britain (UK) | $274 |
| Siemens Medical Solutions USA, Inc. Sep 16, 2025 | Travel and Lodging Varian Ethos Treatment Planning · Oncology · travel to Philadelphia, PA · in-kind | $233 |
Each payment as the company reported it, with the products it named. Meals are counted in the totals above but not listed one by one.
From CMS Open Payments. A payment is not evidence of wrongdoing; many are for consulting, teaching or meals. Clinicians can review and dispute their records with CMS.