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

HISHAM K TAMIMI
NPI 1205916103
Obstetrics & Gynecology - Gynecologic Oncology in Seattle, WA

Active since October 16, 2006
SEATTLE CANCER CARE ALLIANCE, 825 EASTLAKE AVENUE EAST, SEATTLE, WA 98109(206) 288-7400 Get Directions Write a Review

NPPES record last updated: July 5, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Hisham K Tamimi NPPES

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

HISHAM K TAMIMI (NPI 1205916103) is an individual gynecologic oncology provider in Seattle, Washington, licensed in Washington (MD00016163) and active in the NPI registry since October 2006.

NPPES Registry Identity

NPI1205916103
Entity TypeIndividualMale
Primary Taxonomy207VX0201X
Provider Legal NameHISHAM K TAMIMI
Location AddressSEATTLE CANCER CARE ALLIANCE, 825 EASTLAKE AVENUE EASTSeattle, WA 98109
Mailing AddressPo Box 50095Seattle, WA 98145-5095 · (206) 543-6420
Phone(206) 288-7400
Sole ProprietorNo
Enumeration DateOctober 16, 2006
Last NPPES UpdateJuly 5, 2026
✔ NPI 1205916103 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & Gynecology · Gynecologic OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207VX0201X
License✔ Licensed in WA · MD00016163
Definition
An obstetrician/gynecologist who provides consultation and comprehensive management of patients with gynecologic cancer, including those diagnostic and therapeutic procedures necessary for the total care of the patient with gynecologic cancer and resulting complications.
SEATTLE CANCER CARE ALLIANCE, Seattle, WA 98109
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Other Identifiers 3

Other0232030WA · L&i
Other1479Internal Id-motor Vehicle Id
Medicaid1205916103WA

Other Providers at the Same Location NPPES 13

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

JULIE R GRALOW MD
Internal Medicine (Medical Oncology)
SEATTLE CANCER CARE ALLIANCE, 825 EASTLAKE AVENUE EAST
SEATTLE, WA 98109
King County (206) 288-7400
MARC CHAMBERLAIN MD
Psychiatry & Neurology (Neurology with Special Qualifications in Child Neurology)
SEATTLE CANCER CARE ALLIANCE, 825 EASTLAKE AVE E MS G-6800 POB 19023
SEATTLE, WA 98109
King County (813) 362-4370
BARBARA ANN GOFF
Obstetrics & Gynecology (Gynecologic Oncology)
SEATTLE CANCER CARE ALLIANCE, 825 EASTLAKE AVENUE EAST
SEATTLE, WA 98109
King County (206) 288-7400
DR. NANCY N CHANG PHARM.D.
Pharmacist (Pharmacotherapy)
SEATTLE CANCER CARE ALLIANCE, 825 EASTLAKE AVE. E
SEATTLE, WA 98109
King County (206) 288-1375
TERRY B GERNSHEIMER MD
Internal Medicine (Hematology)
SEATTLE CANCER CARE ALLIANCE, 825 EASTLAKE AVENUE EAST
SEATTLE, WA 98109
King County (206) 288-1012
MICHAEL LEE LINENBERGER
Internal Medicine (Hematology)
SEATTLE CANCER CARE ALLIANCE, 825 EASTLAKE AVENUE EAST
SEATTLE, WA 98109
King County (206) 288-1012
ROBERT EDWIN RICHARD MD,PHD
Internal Medicine (Hematology & Oncology)
SEATTLE CANCER CARE ALLIANCE, 825 EASTLAKE AVENUE EAST
SEATTLE, WA 98109
King County (206) 288-1012
JANIS L ABKOWITZ
Internal Medicine (Hematology & Oncology)
SEATTLE CANCER CARE ALLIANCE, 825 EASTLAKE AVENUE EAST
SEATTLE, WA 98109
King County (206) 288-1012

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Hisham Tamimi's NPI number?

The NPI number for Hisham Tamimi is 1205916103. It was assigned to this individual provider in the NPPES registry on October 16, 2006.

Where is Hisham Tamimi located?

Hisham Tamimi practices at Seattle Cancer Care Alliance 825 Eastlake Avenue East, Seattle, WA 98109. The listed phone number is (206) 288-7400.

What is Hisham Tamimi's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology, specializing in Gynecologic Oncology, with taxonomy code 207VX0201X.

When was this NPI record last updated?

The NPPES record for Hisham Tamimi was last updated on July 5, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 37 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.