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

William Thomas Simonson, MDPHD

Individual provider Anatomic Pathology & Clinical Pathology Physician · NPI 1306080262

William Thomas Simonson, MDPHD is a Pathology in Tacoma, Washington. Graduated from University of Wisconsin School of Medicine in 2009, 17 years ago. Practices with Cellnetix Pathology PLLC, a 58-clinician group and accepts Medicare assignment. Licensed in Arizona and Washington.

Years since qualifying
17
Trained at
University of Wisconsin School of Medicine
Licensed in
AZ, WA
In the registry since
2009
Specialties on file
2

Practice location Address checks out

315 Martin Luther King Jr Way Western Washington Pathology
Tacoma, WA 98405-4234
Phone: (253) 403-1043
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Anatomic Pathology & Clinical Pathology Physician (primary) Taxonomy 207ZP0102X · Licence MD60295980 (WA)
Anatomic Pathology & Clinical Pathology Physician Taxonomy 207ZP0102X · Licence 79372 (AZ)

Record details

NPI number1306080262
Entity typeIndividual (Type 1)
GenderMale
Credentials MDPHD
Sole proprietorNo
NPI enumeratedApril 22, 2009
Last updated in NPPESFebruary 27, 2026
Certification dateFebruary 27, 2026
Mailing address315 Martin Luther King Jr Way, Western Washington Pathology, Tacoma, WA 98405-4234

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPATHOLOGY
Medical schoolUNIVERSITY OF WISCONSIN SCHOOL OF MEDICINE
Graduated 2009 (17 years in practice)
Group practice Cellnetix Pathology Pllc — 58 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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