William Thomas Simonson, MD PHD
Anatomic Pathology & Clinical Pathology Physician · Tacoma, WA
William Thomas Simonson, MD PHD is an anatomic pathology & clinical pathology physician with a practice address in Tacoma, Washington, and NPI 1306080262, issued on Apr 22, 2009. Check the license (Washington MD60295980, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- William Thomas Simonson
- Credential
- MD PHD
- Primary taxonomy
- Anatomic Pathology & Clinical Pathology Physician 207ZP0102X
- License numbers
- MD60295980 WA
79372 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 315 Martin Luther King JR Way, Tacoma, WA 98405
- Phone
- (253) 403-1043
- Enumerated
- Apr 22, 2009
- Record last updated
- Feb 27, 2026
- Medicare enrollment
- Enrolled (PECOS I20260317000679); accepts Medicare assignment
- Medical or professional school
- University Of Wisconsin School Of Medicine, 2009
- Entity
- Type 1 · individual
8 nearest anatomic pathology & clinical pathology physician records → All 330 in Washington → Look up another NPI →
Also registered at 315 Martin Luther King JR Way
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Majeed Al-Mateen, MDPediatrics Physician1134144157
- Mario Alinea, MDFamily Medicine Physician1093810459
- Bethany Allen, CCCAudiologist1629195144
Verify William Thomas Simonson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD60295980Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $21.17
1 payment: food and beverage; the largest payer was Abbott Laboratories. The 2,607 providers of this specialty with any payment received $3,565.00 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Cellnetix Pathology PLLCNogales, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William Thomas Simonson among 330 anatomic pathology & clinical pathology physician records in Washington
William Thomas Simonson, MD PHD is one of 330 anatomic pathology & clinical pathology physician records with a practice address in Washington. 58% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 63% of them.
- NPI issued2009 · 63% of these records are older, 33% newer
- In a Medicare fileYes · 58% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated2009 · median 2004 among the 187 with a school on file
- Record last updated2026 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207ZP0102X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Anatomic Pathology & Clinical Pathology Physician providers in Washington
There are 330 anatomic pathology & clinical pathology physician records in Washington.
All 330 in Washington → Every provider in Tacoma → Anatomic Pathology & Clinical Pathology Physician nationwide →
The 8 anatomic pathology & clinical pathology physician records with the nearest ZIP codes
- Joshua Anderson, M.D.Tacoma, WA 984051043605884
- George Austin, M.D.Tacoma, WA 984051588702765
- Angela Fields, M.D.Tacoma, WA 984051033182035
- Michael Flaherty, M.D.Tacoma, WA 984051568501153
- George Hodges, MDTacoma, WA 984051881732998
- Samuel Insalaco, M.D.Tacoma, WA 984051265570378
- James Kelley, M.D.Tacoma, WA 984051609849371
- Margaret Richardson, M.D.Tacoma, WA 984051952478448
Common questions
What is William Thomas Simonson, MD PHD's NPI number?
William Thomas Simonson, MD PHD's National Provider Identifier (NPI) is 1306080262, issued on Apr 22, 2009. An NPI identifies a provider in billing; it is not a license.
Where is William Thomas Simonson, MD PHD located?
The NPPES record lists a practice address at 315 Martin Luther King JR Way, Tacoma, WA, 98405. Phone: (253) 403-1043. Providers update this record themselves, so call before visiting.
How can I verify William Thomas Simonson, MD PHD's license?
NPPES lists Washington license number MD60295980, as entered by the provider. Search the Washington Medical Commission at https://wahelms.my.site.com/s/license-search. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
What is William Thomas Simonson, MD PHD's MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.