NPPES file of Aug 9, 2026

Matthew R. Williams, M.D.

Emergency Medicine Physician · Tigard, OR

Matthew R. Williams, M.D. is an emergency medicine physician with a practice address in Tigard, Oregon, and NPI 1154776359, issued on Apr 26, 2016. Check the license (Oregon MD192306, as entered in NPPES) on the Oregon Medical Board; 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
1154776359
Name
Matthew R. Williams
Credential
M.D.
Primary taxonomy
Emergency Medicine Physician 207P00000X
License numbers
MD192306 OR
BP10056842 TX
Self-reported in NPPES; status is on the state search
Practice location
12442 SW Scholls Ferry RD Ste 100, Tigard, OR 97223
Phone
(503) 216-9254
Enumerated
Apr 26, 2016
Record last updated
Feb 25, 2024
Medicare enrollment
Enrolled (PECOS I20190610001060); accepts Medicare assignment
Medical or professional school
Tulane University School Of Medicine, 2016
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 12442 SW Scholls Ferry RD Ste 100

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

  1. Enrique Barrera, FNPFamily Nurse Practitioner1528337201
  2. Stephanie D'Andrea, AGPCNPAdult Health Nurse Practitioner1497125884
  3. Morgan ElliottRegistered Nurse1548126873
  4. Martha Geisheker, ANPAdult Health Nurse Practitioner1194800961
  5. Lauren Gorence, PA-CPhysician Assistant1831482744
  6. Emily Jacobson, PHDClinical Psychologist1578915377

Verify Matthew R. Williams in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersOregon Medical Board
    Search for license MD192306
    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 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.

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21% more Medicare Part D claims than the average emergency medicine physician in 2024

273 Medicare Part D claims for 194 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.

  1. Matthew Williams273
  2. Specialty average226

Most prescribed

  1. Amoxicillin-Clavulanate Potass33 claims
  2. Cephalexin20 claims
  3. Sulfamethoxazole-Trimethoprim18 claims
  4. Doxycycline Hyclate17 claims
  5. Azithromycin14 claims
  6. Fluticasone Propionate11 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.

Bills Medicare through one group practice

  1. Providence Health And Services OregonHillsboro, OR

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Matthew R. Williams among 1,079 emergency medicine physician records in Oregon

Matthew R. Williams, M.D. is one of 1,079 emergency medicine physician records with a practice address in Oregon. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 77% of them.

  • NPI issued2016 · 77% of these records are older, 20% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 52% of these records are
  • Graduated2016 · median 2013 among the 557 with a school on file
  • Record last updated2024 · 57% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Emergency Medicine Physician providers in Oregon

There are 1,079 emergency medicine physician records in Oregon.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Chad Byars, M.D.Portland, OR 972221124006671
  2. Speros Homer, M.D.Milwaukie, OR 972221376631408
  3. Samuel Kim, MDMilwaukie, OR 972221881795078
  4. David Knox, M.D.Milwaukie, OR 972221447331921
  5. Alexander Lapidus, M.D.Portland, OR 972221467496521
  6. Frances Lawson, M.D.Tigard, OR 972241851334387
  7. James Maras, M.D.Milwaukie, OR 972221093803132
  8. Mark Roberts, D.O.Milwaukie, OR 972221154485514

Common questions

What is Matthew R. Williams, M.D.'s NPI number?

Matthew R. Williams, M.D.'s National Provider Identifier (NPI) is 1154776359, issued on Apr 26, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Matthew R. Williams, M.D. located?

The NPPES record lists a practice address at 12442 SW Scholls Ferry RD Ste 100, Tigard, OR, 97223. Phone: (503) 216-9254. Providers update this record themselves, so call before visiting.

How can I verify Matthew R. Williams, M.D.'s license?

NPPES lists Oregon license number MD192306, as entered by the provider. Search the Oregon Medical Board at https://www.oregon.gov/OMB/Pages/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Matthew R. Williams, M.D. prescribe under Medicare Part D?

In 2024, Matthew R. Williams, M.D. had 273 Medicare Part D claims for 194 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.