Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Tumor Institute Radiation Oncology Group LLP

Organization Radiation Oncology Physician · NPI 1184632572

Tumor Institute Radiation Oncology Group LLP is a Radiation Oncology Physician in Seattle, Washington. Works from 2 locations. Registered with an NPI since 2006.

In the registry since
2006
What do these letters mean?
LLP — Limited liability partnership
A form of business registration, not a clinical qualification.

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Practice location Address checks out

1221 Madison St First Fl
Seattle, WA 98104-3589
Phone: (206) 386-2323
Fax: (206) 385-6150
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 550 17th Ave Ste A10, Seattle, WA 98122-5789 — (206) 320-7130

Specialties & licences

Radiation Oncology Physician (primary) Taxonomy 2085R0001X

Record details

NPI number1184632572
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Mary Monahan — Administrator · (206) 320-7129
NPI enumeratedAugust 3, 2006
Last updated in NPPESJuly 5, 2022
Certification dateMay 23, 2022
Mailing addressPo Box 749730, Los Angeles, CA 90074-9730

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