Radiation oncologists in the United States
- Radiation oncologists
- 6,811
- Linked to a hospital or group
- 5,748
- Hospitals with a radiation oncologist
- 2,719
- Medical groups with a radiation oncologist
- 1,628
- States and territories
- 52
There are 6,811 radiation oncologists in the US. California has the most, 734, and The University of Texas MD Anderson Cancer Center has the most affiliated radiation oncologists of any hospital, 100. 35% finished medical school 30 or more years ago.
Find work emails and mobile numbers for all 6,811 US radiation oncologists
Validated work emails and mobile numbers for US radiation oncologists, found through healthcare waterfall enrichment, with a free Dmand AI account.
California has the most radiation oncologists, with 734
There are 6,811 radiation oncologists in the US, according to Dmand AI data. Florida is second with 492, and New York third with 438.
Radiation oncologists in every other state and territory
- Washington185
- Georgia182
- Minnesota160
- New Jersey159
- Virginia155
- Arizona155
- Indiana142
- Wisconsin139
- Missouri138
- Tennessee133
- Maryland115
- Oregon112
- Colorado109
- Kentucky99
- South Carolina85
- Alabama78
- Connecticut73
- Iowa71
- Kansas69
- Utah68
- Louisiana62
- Oklahoma56
- Arkansas52
- Mississippi43
- Nebraska41
- Nevada37
- West Virginia37
- Washington, DC32
- New Mexico32
- New Hampshire31
- Hawaii30
- Maine30
- Rhode Island27
- Montana25
- Delaware23
- Puerto Rico21
- North Dakota20
- South Dakota20
- Idaho19
- Alaska16
- Vermont14
- Wyoming11
Source: NPPES NPI Registry (CMS)
For health IT teams
Dmand AI has the EHR for 6,247 of 6,811 US radiation oncologists, at their hospital and their practice. Filter by Epic, Oracle Health, MEDITECH, athenahealth and more, then reach them with validated work emails and mobile numbers.
Brigham and Women's Hospital has the most radiation oncologists of any US medical group, with 97
Physicians Referral Service is second with 93, and Massachusetts General Physicians Organization (MGPO) third with 89. Counts are radiation oncologists linked to each group.
Sources: Dmand AI Affiliation Data and Dmand AI Org Hierarchy Data
The University of Texas MD Anderson Cancer Center has the most affiliated radiation oncologists of any US hospital, with 100
Brigham and Women's Hospital in Boston is second with 83, and Memorial Sloan Kettering Cancer Center third with 73. US radiation oncologists are affiliated with 2,719 hospitals in all.
See every hospital and group for each US radiation oncologist
Each public profile names one place a radiation oncologist practices. A free account shows all of them, with the employer, the EHR and validated contacts.
Source: Dmand AI Affiliation Data
4,931 US radiation oncologists practice at a hospital, the most common site of care
3,204 also practice at a medical group site, and 266 at physician offices. A radiation oncologist can practice at several kinds of site, so the shares overlap.
US radiation oncologists by site of care
- Hospitals4,931
- Medical group practices3,204
- Physician offices266
- Ambulatory surgery centers206
- Breast imaging centers184
Sources: Dmand AI Affiliation Data and Dmand AI Practice Data
35% of US radiation oncologists finished medical school 30 or more years ago
1,847 of the 5,290 US radiation oncologists with a graduation year on file. 642 graduated in the last 10 years, fewer than graduated 40 or more years ago.
Physicians by years since medical school
- Under 10 years ago642
- 10 to 19 years ago1,646
- 20 to 29 years ago1,155
- 30 to 39 years ago1,063
- 40 or more years ago784
Source: Dmand AI Professional Profile Data
Every US radiation oncologist profile shows current hospitals and groups, Medicare activity and NPI details
- Primary practiceThe main place they practice, with its type and cityOn every profile
- Every site of careEach hospital, clinic and group where they practice nowWith a free account
- EmployerThe organization they work for, when one is on fileWith a free account
- Medicare servicesServices and procedure codes billed to Medicare, from CMSOn every profile
- Medicare Part D prescribingClaims and drug costs from Part D, from CMSOn every profile
- Industry paymentsPayments from drug and device makers, from CMS Open PaymentsOn every profile
- Publications and clinical trialsResearch papers and trials linked to the NPI, when on fileOn every profile
- Licenses and graduation yearState license numbers and medical school graduation yearOn every profile
- NPI detailsNPI, enumeration date, primary taxonomy and practice addressOn every profile
- Work email and mobile numberFound on request through healthcare waterfall enrichment, then validatedWith a free account
- EHR in useThe EHR at each site where they practiceWith a free account
- Colleagues at each siteThe clinicians they work with at each hospital and groupWith a free account
Free account: 30 days free, self-serve, no credit card.
Sources: NPPES NPI Registry (CMS), Medicare Physician & Other Practitioners (CMS), Open Payments (CMS) and Dmand AI Affiliation Data
Sources for the US radiation oncologist directory
| Data on this page | Source |
|---|---|
| HCPs, types and specialties | NPPES NPI Registry (CMS) and Dmand AI Professional Profile Data |
| Sites of care, hospitals and medical groups | Dmand AI Affiliation Data |
| Medical school graduation year | Dmand AI Professional Profile Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
Radiation oncologists are HCPs whose primary specialty is radiation oncology (taxonomy code 2085R0001X), with an active NPI and a US practice address.
FAQ
Frequently asked questions about radiation oncologists in the US
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
How many radiation oncologists are in the US?
6,811 radiation oncologists have an active NPI, a US practice address and radiation oncology (taxonomy code 2085R0001X) as their primary specialty. 5,748 of them are linked to a hospital or medical group.
Which state has the most radiation oncologists?
California, with 734, followed by Florida with 492 and New York with 438.
Which medical groups have the most radiation oncologists?
Brigham and Women's Hospital, with 97, followed by Physicians Referral Service with 93 and Massachusetts General Physicians Organization (MGPO) with 89.
Which hospitals have the most radiation oncologists?
The University of Texas MD Anderson Cancer Center, with 100 affiliated radiation oncologists, followed by Brigham and Women's Hospital with 83 and Memorial Sloan Kettering Cancer Center with 73.
How many US radiation oncologists finished medical school 30 or more years ago?
1,847 of the 5,290 with a graduation year on file, or 35%. 642 graduated in the last 10 years.
What is the taxonomy code for radiation oncology?
2085R0001X is the NPPES taxonomy code for radiation oncology. Sub-specialties with their own code are counted on their own lists.
Dmand AI
Find the right contacts among US radiation oncologists
Search 6,811 US radiation oncologists by state, hospital, medical group and the EHR they use, with validated work emails and mobile numbers.
- 30 days free
- Self-serve
- No credit card