NPPES file of Aug 9, 2026

Matthew Joseph Ashbrook, MD

Surgery Physician · Bremerton, WA

Matthew Joseph Ashbrook, MD is a surgery physician with a practice address in Bremerton, Washington, and NPI 1710484993, issued on Apr 12, 2018. Check the license (Washington 61668157, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1710484993
Name
Matthew Joseph Ashbrook
Credential
MD
Primary taxonomy
Surgery Physician 208600000X
License numbers
61668157 WA
A164999 CA
Self-reported in NPPES; status is on the state search
Practice location
1 Boone RD, Bremerton, WA 98312
Phone
(999) 999-9999
Enumerated
Apr 12, 2018
Record last updated
Dec 10, 2025
Medicare enrollment
Enrolled (PECOS I20250804003497); may accept Medicare assignment
Medical or professional school
Wayne State University School Of Medicine, 2018
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1 Boone RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Lisa Abels, D.O.Family Medicine Physician1134323827
  2. Reginald Adkisson, PHDClinical Psychologist1063632834
  3. Kevin AguirreOther Specialist/Technologist1487487898
  4. Elaine Anderson, CNMAdvanced Practice Midwife1629226402
  5. Eric Anderson, M.D.Anesthesiology Physician1629041223
  6. Erik AndersonAerospace Medicine Physician1033524574

Verify Matthew Joseph Ashbrook in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWashington Medical Commission
    Search for license 61668157
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Washington license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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88% fewer Medicare Part D claims than the average surgery physician in 2024

17 Medicare Part D claims, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D.

  1. Matthew Ashbrook17
  2. Specialty average147

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Matthew Joseph Ashbrook among 791 surgery physician records in Washington

Matthew Joseph Ashbrook, MD is one of 791 surgery physician records with a practice address in Washington. 69% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 86% of them.

  • NPI issued2018 · 86% of these records are older, 12% newer
  • In a Medicare fileYes · 69% of these records are
  • In the CMS Doctors and Clinicians fileYes · 55% of these records are
  • Graduated2018 · median 2006 among the 439 with a school on file
  • Record last updated2025 · 60% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208600000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Surgery Physician providers in Washington

There are 791 surgery physician records in Washington.

The 8 surgery physician records with the nearest ZIP codes

  1. Mofei Liu, MDBremerton, WA 983121639438567
  2. Jessie Paull, M.D.Bremerton, WA 983121912392085
  3. Joejack Davis, MDBremerton, WA 983101730245523
  4. Gerald Fleischhauer, M.D.Bremerton, WA 983101164535977
  5. James Lee, M.D.Bremerton, WA 983101003163007
  6. Jacqueline Osland, MDForks, WA 983311750388559
  7. Steven Giss, MD, FACSGig Harbor, WA 983321538143292
  8. Barrington Murrell, DOGig Harbor, WA 983321043542012

Common questions

What is Matthew Joseph Ashbrook, MD's NPI number?

Matthew Joseph Ashbrook, MD's National Provider Identifier (NPI) is 1710484993, issued on Apr 12, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Matthew Joseph Ashbrook, MD located?

The NPPES record lists a practice address at 1 Boone RD, Bremerton, WA, 98312. Phone: (999) 999-9999. Providers update this record themselves, so call before visiting.

How can I verify Matthew Joseph Ashbrook, MD's license?

NPPES lists Washington license number 61668157, 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.

How much does Matthew Joseph Ashbrook, MD prescribe under Medicare Part D?

In 2024, Matthew Joseph Ashbrook, MD had 17 Medicare Part D claims; the average among surgery physician prescribers was 147. Part D covers Medicare prescriptions only.

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.