Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

ZACHARY DANIEL HANSON DO, MA
NPI 1760956841
Internal Medicine - Hematology & Oncology in Seattle, WA

Q: What is Zachary Hanson's NPI number?

The NPI number for Zachary Hanson is 1760956841. It was assigned to this individual provider in the NPPES registry on January 11, 2019.

Q: What is Zachary Hanson's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

Q: When was this NPI record last updated?

The NPPES record for Zachary Hanson was last updated on October 2, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since January 11, 2019

825 EASTLAKE AVE E, SEATTLE, WA 98109(206) 520-5000 Get Directions Write a Review

NPPES record last updated: October 2, 2026. Verified against the NPPES registry weekly; last sync: October 11, 2026.

Record update history: Oct 2, 2026, Nov 21, 2022, Jan 11, 2019 (3 updates tracked since 2019).

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About Zachary Daniel Hanson Do, Ma NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ZACHARY DANIEL HANSON DO, MA (NPI 1760956841) is an individual hematology & oncology provider in Seattle, Washington, licensed in Washington (DO.OP.70123987) and active in the NPI registry since January 2019.

NPPES Registry Identity

NPI1760956841

Entity TypeIndividualMale

Primary Taxonomy207RH0003X

Provider Legal NameZACHARY DANIEL HANSONCredential: DO, MA

Location Address825 EASTLAKE AVE ESeattle, WA 98109-4405

Mailing AddressPo Box 50095Seattle, WA 98145-5095

Phone(206) 520-5000

Sole ProprietorYes

Enumeration DateJanuary 11, 2019

Last NPPES UpdateOctober 2, 20263 updates tracked since enumeration

NPPES CertifiedOctober 2, 2026

✔ NPI 1760956841 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 4

★ Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians

Taxonomy Code207RH0003X

License✔ Licensed in WA · DO.OP.70123987

Definition

An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.

Also ListedInternal MedicineTaxonomy 207R00000X · License DO.OP.70123987 (WA)

Also ListedInternal Medicine · HematologyTaxonomy 207RH0000X · License DO.OP.70123987 (WA)

Also ListedInternal Medicine · Medical OncologyTaxonomy 207RX0202X · License DO.OP.70123987 (WA)

825 EASTLAKE AVE E, Seattle, WA 98109

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Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

SANDHYA RAMANATHAN PANCH M.D.

Internal Medicine (Hematology)