NPPES file of Aug 9, 2026

Matthew John Williams, D.D.S.

Oral and Maxillofacial Surgery (Dentist) · Portland, OR

Matthew John Williams, D.D.S. is an oral and maxillofacial surgery (dentist) with a practice address in Portland, Oregon, and NPI 1790086957, issued on Nov 4, 2010. Check the license (Oregon D11405, as entered in NPPES) with the Oregon board that licenses this profession; 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
1790086957
Name
Matthew John Williams
Credential
D.D.S.
Primary taxonomy
Oral and Maxillofacial Surgery (Dentist) 1223S0112X
License numbers
D11405 OR
1364 AK
Self-reported in NPPES; status is on the state search
Practice location
8931 SE Foster RD, Portland, OR 97266
Phone
(855) 433-6825
Enumerated
Nov 4, 2010
Record last updated
Apr 2, 2021 (not updated in 5 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
Download card Updates feed

Also registered at 8931 SE Foster RD

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

  1. Thao Chu, D.D.S.General Practice Dentistry1033213657
  2. Tyler Craven, DMDDentist1790390060
  3. Emily Goff, DMDDentist1255069514
  4. Tracy Herion, D.D.S, M. S.Orthodontics and Dentofacial Orthopedics Dentistry1427102276
  5. Michael Isaac, DDSOral and Maxillofacial Surgery (Dentist)1578884912
  6. Kyle Malloy, D.M.D.; M.S.Periodontics1457791592

Verify Matthew John Williams in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Oregon board licenses this profession
    Search for license D11405
    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
Find the Oregon 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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

84% fewer Medicare Part D claims than the average oral and maxillofacial surgery (dentist) in 2024

65 Medicare Part D claims for 28 beneficiaries, against an average of 406 among the 5,870 providers of this specialty who prescribed in Part D. 16 claims were for opioids.

  1. Matthew Williams65
  2. Specialty average406

Most prescribed

  1. Chlorhexidine Gluconate16 claims
  2. Amoxicillin14 claims
  3. Oxycodone Hcl14 claims
  4. Ondansetron Hcl12 claims

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 John Williams among 97 oral and maxillofacial surgery (dentist) records in Oregon

Matthew John Williams, D.D.S. is one of 97 oral and maxillofacial surgery (dentist) records with a practice address in Oregon. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 70% of them.

  • NPI issued2010 · 70% of these records are older, 26% newer
  • In a Medicare fileYes · 76% of these records are
  • In the CMS Doctors and Clinicians fileNo · 5% of these records are
  • Record last updated2021 · 68% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223S0112X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Oral and Maxillofacial Surgery (Dentist) providers in Oregon

There are 97 oral and maxillofacial surgery (dentist) records in Oregon.

The 8 oral and maxillofacial surgery (dentist) records with the nearest ZIP codes

  1. Michael Isaac, DDSPortland, OR 972661578884912
  2. Julie Ann Smith, DDS, MDPortland, OR 972661972588374
  3. Robert Smith, DMDPortland, OR 972661841250545
  4. Eugene Kelley, DMDPortland, OR 972391588805311
  5. Cynthia Kleinegger, DDSPortland, OR 972391366404717
  6. Ying Wu, DDS, PHDPortland, OR 972391265662894
  7. Kenneth Stinchfield, DDSPortland, OR 972331326104076
  8. John Bozich, D.M.D.Portland, OR 972321265644306

Common questions

What is Matthew John Williams, D.D.S.'s NPI number?

Matthew John Williams, D.D.S.'s National Provider Identifier (NPI) is 1790086957, issued on Nov 4, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Matthew John Williams, D.D.S. located?

The NPPES record lists a practice address at 8931 SE Foster RD, Portland, OR, 97266. Phone: (855) 433-6825. Providers update this record themselves, so call before visiting.

How can I verify Matthew John Williams, D.D.S.'s license?

NPPES lists Oregon license number D11405, as entered by the provider. Search the Oregon board that licenses this profession; the NPPES record confirms identity only.

How much does Matthew John Williams, D.D.S. prescribe under Medicare Part D?

In 2024, Matthew John Williams, D.D.S. had 65 Medicare Part D claims for 28 beneficiaries; the average among oral and maxillofacial surgery (dentist) prescribers was 406. 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.