Radiation Oncology
Radiation Oncology holds 5 active organization NPIs in the federal registry, with practice locations in 5 cities in 5 states. 3 list radiation oncology physician as their primary taxonomy; each location can bill under its own NPI.
Search the organization with your city to find the NPI for the location you visit or bill.
Find a location's NPIColorado Springs, CO has the most NPIs, 1
Source: CMS NPPES monthly file of Aug 9, 2026, organization NPIs by practice city.
Most NPIs were issued in 2006 and 2015
Source: CMS NPPES, enumeration dates.
4 NPIs were issued in 2006 alone, more than in any other year; none in 8 of the years between.
Colorado Springs, CO locations
The city with the most Radiation Oncology NPIs. The full list of all 5 follows.
| NPI | Location | Primary taxonomy | Issued |
|---|---|---|---|
| 1184604266 | 2222 N NEVADA AVE STE CC-101, Colorado Springs, CO | Radiation Oncology Physician | Jan 17, 2006 |
All 5 locations, by state and city
| NPI | Location | Primary taxonomy | Issued |
|---|---|---|---|
| 1184604266 | 2222 N NEVADA AVE STE CC-101, Colorado Springs, CO | Radiation Oncology Physician | Jan 17, 2006 |
| 1518338797 | 227 MAHALANI ST, Wailuku, HI | Specialist | Oct 13, 2015 |
| 1154374056 | 1001 PENNSYLVANIA AVE, Ottumwa, IA | Radiation Oncology Physician | May 19, 2006 |
| 1619990074 | 1234 NAPIER AVE, Saint Joseph, MI | Specialist | Jul 26, 2006 |
| 1154369163 | 1 COOPER PLZ, Camden, NJ | Radiation Oncology Physician | Jun 2, 2006 |
Related names
- Radiation Oncology Associates · 23 NPIs
- Radiation Oncology Centers Of Southwest Florida LLC · 6 NPIs
- Radiation Oncology Alliance · 3 NPIs
- Radiation Oncology Consultants INC · 3 NPIs
- Radiation Oncology Group · 3 NPIs
- Radiation Oncology Specialists · 3 NPIs
- Radiation Oncology Associates Of Michiana PC · 2 NPIs
- Radiation Oncology Center - Zachary · 2 NPIs
- Radiation Oncology Centers Of The Carolinas, INC · 2 NPIs
- Radiation Oncology Medical Practice Of St Vincents PC · 2 NPIs
- Radiation Oncology Of Southern Ct, LLC · 2 NPIs
- Radiation Oncology Of Wisconsin S C · 2 NPIs
Checking an organization
- Match the NPI to the exact location you will visit or bill; each location can have its own.
- Confirm the business entity with the secretary of state.
- Check the HHS-OIG exclusion list for the organization and its owners.
- Verify each clinician you will see on their own record and with the state license search.
Common questions
Why does Radiation Oncology have 5 NPIs?
An organization may obtain more than one Type 2 NPI, for example for separate locations or units that bill on their own. Radiation Oncology's NPIs list practice locations in 5 cities.
Is an organization NPI a license?
No. An NPI identifies who bills. Facilities and the clinicians who work there are licensed separately by the state.
Source: CMS National Plan and Provider Enumeration System (NPPES), monthly file of Aug 9, 2026 (NPPES files on CMS.gov). An NPI identifies who bills; it is not a license.