Updated October 2026

Radiation oncologists in Seattle, WA

Radiation oncology
Seattle, Washington

Radiation oncologists: 78
Linked to a hospital or group: 58
Hospitals with a radiation oncologist: 17
Medical groups with a radiation oncologist: 15
Practice at a hospital: 56

There are 78 radiation oncologists in Seattle. UW Physicians has the most, 35, and Fred Hutchinson Cancer Center has the most affiliated radiation oncologists, 36. 20% finished medical school 30 or more years ago.

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Seattle radiation oncologists, listed A to Z by last name

Each radiation oncologist on the list has radiation oncology as their primary specialty and a Seattle practice address. The list shows the NPI, and how many hospitals and medical groups each one practices with. A free account names every hospital and group, with validated contacts.

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Seattle radiation oncologists, A to Z
Radiation oncologist	Hospitals	Medical groups	Email and phone
Ahsen Uzair Ahmed, MDNPI 1417510900	3 hospitals	1 group	Contacts
Saif Aljabab, MBBSNPI 1720512296	-	-	Contacts
Smith Apisarnthanarax, MDNPI 1184839722	2 hospitals	1 group	Contacts
Todd A. Barnett, MDNPI 1629091483	3 hospitals	1 group	Contacts
John C. Blasko, MDNPI 1194748715	-	-	Contacts
Kathryn Havard Blau, MD, MSNPI 1255862520	3 hospitals	1 group	Contacts
James H. Brashears, MDNPI 1720177819	4 hospitals	3 groups	Contacts
Daniela L. Buscariollo, MDNPI 1265708960	3 hospitals	1 group	Contacts
Alvin Roy Cabrera, MDNPI 1043407414	1 hospital	1 group	Contacts
Christopher Adam Canning, MDNPI 1558318998	1 hospital	1 group	Contacts
Jonathan J. Chen, MD, PhDNPI 1023429388	2 hospitals	1 group	Contacts
Maryam Ebadi, MDNPI 1063083327	1 hospital	1 group	Contacts
Ralph Philip Ermoian, MDNPI 1588795140	2 hospitals	2 groups	Contacts
Erin Faye Gillespie, MDNPI 1699031740	2 hospitals	1 group	Contacts
Mark T. GroudineNPI 1912082710	-	-	Contacts
Lia Moriguchi Halasz, MDNPI 1780735951	2 hospitals	1 group	Contacts
Sara J. Hardy, MDNPI 1629368998	2 hospitals	1 group	Contacts
Richard A. Hsi, MDNPI 1992815971	3 hospitals	3 groups	Contacts
Gabrielle Martina Kane, MDNPI 1205026572	-	-	Contacts
John Kang, MD, PhDNPI 1093100166	3 hospitals	1 group	Contacts
Kylie Haemin Kang, MDNPI 1033613047	2 hospitals	1 group	Contacts
Edward Y. Kim, MDNPI 1811100746	2 hospitals	1 group	Contacts
Janice Nam Kim, MDNPI 1942223151	1 hospital	1 group	Contacts
Daniel M. Landis, MDNPI 1013930643	5 hospitals	2 groups	Contacts
George Ernest LaramoreNPI 1457441313	2 hospitals	-	Contacts
Felicia LewNPI 1033806054	2 hospitals	1 group	Contacts
Charles Marc Leyrer, MDNPI 1518301464	1 hospital	1 group	Contacts
Benjamin Ching-Yi Li, MBA, MDNPI 1346744372	2 hospitals	1 group	Contacts
Jay J. Liao, MDNPI 1477764223	2 hospitals	1 group	Contacts
Skyler K. Lindsley, MDNPI 1396746657	1 hospital	3 groups	Contacts
Yilan LiuNPI 1922758697	2 hospitals	-	Contacts
Simon S. Lo, MDNPI 1932163680	2 hospitals	1 group	Contacts
Christopher R. Loiselle, MDNPI 1225259187	3 hospitals	2 groups	Contacts
Ting Martin Ma, MD, PhDNPI 1467818369	2 hospitals	1 group	Contacts
Annaliisa McGlinn, MDNPI 1063506590	5 hospitals	10 groups	Contacts
Shauna Marie McVorran, MDNPI 1730564154	3 hospitals	3 groups	Contacts
Vivek K. Mehta, MDNPI 1417970252	2 hospitals	2 groups	Contacts
Robert M. Meier, MDNPI 1215950704	5 hospitals	2 groups	Contacts
Astrid D. Morris, MDNPI 1194739755	2 hospitals	2 groups	Contacts
Katarina Thuy-Dan Nguyen, MDNPI 1740817964	2 hospitals	1 group	Contacts
Lisa Ni, MDNPI 1760944235	2 hospitals	3 groups	Contacts
Muneeb Zafarullah Khan Niazi, DONPI 1144782210	2 hospitals	1 group	Contacts
Neil Panjwani, MDNPI 1871026294	2 hospitals	1 group	Contacts
Arun Paul, MDNPI 1376898411	3 hospitals	2 groups	Contacts
Anthony Hoai-Nam Pham, MDNPI 1508251000	4 hospitals	1 group	Contacts
Amber B. Post, MD, PhDNPI 1801053053	3 hospitals	2 groups	Contacts
Ramesh Rengan, MD, PhDNPI 1801981428	1 hospital	1 group	Contacts
Paul Jean Marie Riviere, MDNPI 1710514013	3 hospitals	1 group	Contacts
Jason King RockhillNPI 1255416079	-	-	Contacts
Kenneth J. RussellNPI 1851477509	-	-	Contacts

Showing 1 to 50 of 66 Seattle radiation oncologists

The list shows the 66 radiation oncologists with a public profile. The other 12 are counted in the total and searchable with a free account.

Sources: NPPES NPI Registry (CMS) and Dmand AI Affiliation Data

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Dmand AI has the EHR for 71 of 78 Seattle 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.

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UW Physicians has the most radiation oncologists in Seattle, with 35

Tumor Institute Radiation Oncology Group (TIROG) is second with 11, and Swedish Health Services third with 5. Counts are radiation oncologists with a Washington address linked to each group.

Medical groups with the most radiation oncologists in Seattle
#	Medical group	Parent organization	Radiation oncologists
1	UW PhysiciansSeattle	Parent on file	35
2	Tumor Institute Radiation Oncology Group (TIROG)Seattle	-	11
3	Swedish Health ServicesSeattle	Parent on file	5
4	Washington Permanente Medical Group, P.C.Seattle	Parent on file	5
5	Virginia Mason Medical CenterSeattle	Parent on file	5
6	Franciscan Orthopedics - SilverdaleSilverdale	Parent on file	3
7	Children's University Medical Group (CUMG)Seattle	Parent on file	3
8	The PolyclinicSeattle	Parent on file	1
9	Jefferson HealthcarePort Townsend	Parent on file	1
10	Booth Gardner Parkinson's Care CenterKirkland	Parent on file	1

Top 10 of 15 Seattle medical groups with a radiation oncologist

Sources: Dmand AI Affiliation Data and Dmand AI Org Hierarchy Data

Fred Hutchinson Cancer Center has the most affiliated radiation oncologists in Seattle, with 36

UW Medical Center - Montlake is second with 32, and Swedish Cherry Hill Campus third with 9. Seattle radiation oncologists are affiliated with 17 hospitals in all.

Hospitals with the most radiation oncologists in Seattle
#	Hospital	Health system	Radiation oncologists
1	Fred Hutchinson Cancer CenterSeattle	Fred Hutchinson Cancer Center	36
2	UW Medical Center - MontlakeSeattle	University of Washington	32
3	Swedish Cherry Hill CampusSeattle	Providence	9
4	Swedish First Hill CampusSeattle	Providence	9
5	Providence Swedish Edmonds CampusEdmonds	Providence	6
6	Virginia Mason Medical CenterSeattle	CommonSpirit Health	5
7	St. Anne HospitalBurien	CommonSpirit Health	4
8	Olympic Memorial HospitalPort Angeles	Olympic Medical Center	4
9	St. Francis HospitalFederal Way	CommonSpirit Health	4
10	Jefferson Healthcare Medical CenterPort Townsend	Jefferson Healthcare	4

Top 10 of 17 Seattle hospitals with an affiliated radiation oncologistAll 11 Seattle hospitals

See every hospital and group for each Seattle 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.

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Source: Dmand AI Affiliation Data

Most Seattle radiation oncologists practice at a hospital: 56 of the 58 with a mapped site

23 also practice at a medical group site, and 5 at imaging centers. A radiation oncologist can practice at several kinds of site, so the shares overlap.

Seattle radiation oncologists by site of care

Hospitals5697%
Medical group practices2340%
Imaging centers59%

Sources: Dmand AI Affiliation Data and Dmand AI Practice Data

20% of Seattle radiation oncologists finished medical school 30 or more years ago

11 of the 54 Seattle radiation oncologists with a graduation year on file. 14 graduated in the last 10 years.

Physicians by years since medical school

Under 10 years ago1426%
10 to 19 years ago1426%
20 to 29 years ago1528%
30 to 39 years ago611%
40 or more years ago59%

Source: Dmand AI Professional Profile Data

Every Seattle 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 Seattle radiation oncologist directory

Sources for the data on this page
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 inaccuracy Remove my information

Radiation oncologists are HCPs whose primary specialty is radiation oncology (taxonomy code 2085R0001X), with an active NPI and a Seattle practice address.

FAQ

Frequently asked questions about radiation oncologists in Seattle

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 Seattle?

78 radiation oncologists have an active NPI, a Seattle practice address and radiation oncology (taxonomy code 2085R0001X) as their primary specialty. 58 of them are linked to a hospital or medical group.

Which Seattle medical groups have the most radiation oncologists?

UW Physicians, with 35, followed by Tumor Institute Radiation Oncology Group (TIROG) with 11 and Swedish Health Services with 5.

Which Seattle hospitals have the most radiation oncologists?

Fred Hutchinson Cancer Center, with 36 affiliated radiation oncologists, followed by UW Medical Center - Montlake with 32 and Swedish Cherry Hill Campus with 9.

What share of Seattle radiation oncologists practice at a hospital?

56 of the 58 Seattle radiation oncologists with a mapped site of care, or 97%, have a current hospital affiliation.

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.

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