Radiation oncologists in California
- Radiation oncologists
- 734
- Linked to a hospital or group
- 621
- Hospitals with a radiation oncologist
- 183
- Medical groups with a radiation oncologist
- 167
- Cities
- 132
There are 734 radiation oncologists in California. City of Hope has the most, 61, and Stanford Hospital at 300 Pasteur Drive has the most affiliated radiation oncologists, 40. Los Angeles is home to 85, and 31% finished medical school 30 or more years ago.
Find work emails and mobile numbers for all 734 California radiation oncologists
Validated work emails and mobile numbers for California radiation oncologists, found through healthcare waterfall enrichment, with a free Dmand AI account.
California radiation oncologists, listed A to Z by last name
Each radiation oncologist on the list has radiation oncology as their primary specialty and a California practice address. The list shows the NPI and city, and how many hospitals and medical groups each one practices with. A free account names every hospital and group, with validated contacts.
Filter this list with a free account
Sort and filter all 734 California radiation oncologists by city, hospital, medical group, the EHR they use and Medicare volume in Dmand AI.
Showing 1 to 10 of 685 California radiation oncologists
The list shows the 685 radiation oncologists with a public profile. The other 49 are counted in the total and searchable with a free account.
Sources: NPPES NPI Registry (CMS) and Dmand AI Affiliation Data
For health IT teams
Dmand AI has the EHR for 680 of 734 California 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.
City of Hope has the most radiation oncologists in California, with 61
The Permanente Medical Group, Inc. is second with 46, and Stanford Health Care third with 34. Counts are radiation oncologists with a California address linked to each group.
Sources: Dmand AI Affiliation Data and Dmand AI Org Hierarchy Data
Stanford Hospital at 300 Pasteur Drive has the most affiliated radiation oncologists in California, with 40
UCSF Helen Diller Medical Center at Parnassus Heights in San Francisco is second with 37, and Hillcrest Medical Center third with 31. California radiation oncologists are affiliated with 183 hospitals in all.
See every hospital and group for each California 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
Los Angeles has the most radiation oncologists in California, with 85
More California cities with radiation oncologists
Radiation oncologists practice in 132 California cities. Every city with 10 or more has its own page.
Source: NPPES NPI Registry (CMS)
Most California radiation oncologists practice at a hospital: 450 of the 606 with a mapped site
377 also practice at a medical group site, and 33 at physician offices. A radiation oncologist can practice at several kinds of site, so the shares overlap.
California radiation oncologists by site of care
- Hospitals450
- Medical group practices377
- Physician offices33
- Ambulatory surgery centers20
- Breast imaging centers18
Sources: Dmand AI Affiliation Data and Dmand AI Practice Data
31% of California radiation oncologists finished medical school 30 or more years ago
174 of the 570 California radiation oncologists with a graduation year on file. 62 graduated in the last 10 years, fewer than graduated 40 or more years ago.
Physicians by years since medical school
- Under 10 years ago62
- 10 to 19 years ago181
- 20 to 29 years ago153
- 30 to 39 years ago100
- 40 or more years ago74
Source: Dmand AI Professional Profile Data
Every California 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 California 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 California practice address.
FAQ
Frequently asked questions about radiation oncologists in California
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 California?
734 radiation oncologists have an active NPI, a California practice address and radiation oncology (taxonomy code 2085R0001X) as their primary specialty. 621 of them are linked to a hospital or medical group.
Which California medical groups have the most radiation oncologists?
City of Hope, with 61, followed by The Permanente Medical Group, Inc. with 46 and Stanford Health Care with 34.
Which California hospitals have the most radiation oncologists?
Stanford Hospital at 300 Pasteur Drive, with 40 affiliated radiation oncologists, followed by UCSF Helen Diller Medical Center at Parnassus Heights with 37 and Hillcrest Medical Center with 31.
Which California cities have the most radiation oncologists?
Los Angeles, with 85, followed by San Diego (43) and Duarte (38). Radiation oncologists practice in 132 California cities in all.
How many California radiation oncologists finished medical school 30 or more years ago?
174 of the 570 with a graduation year on file, or 31%. 62 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.
How can I contact radiation oncologists in California?
Dmand AI finds validated work emails, mobile numbers and practice phone numbers for radiation oncologists in California through healthcare waterfall enrichment, matched to the site where each one practices now. They are available with a free Dmand AI account: 30 days free, self-serve, no credit card.
Dmand AI
Find the right contacts among California radiation oncologists
Search 734 California radiation oncologists by hospital, medical group and the EHR they use, with validated work emails and mobile numbers.
- 30 days free
- Self-serve
- No credit card