NPPES file of Aug 9, 2026

Brian Sieu Lieu, DMD

General Practice Dentistry · Portland, OR

Brian Sieu Lieu, DMD is a general practice dentistry with a practice address in Portland, Oregon, and NPI 1306114830, issued on Dec 12, 2011. Check the license (Oregon D9671, 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
1306114830
Name
Brian Sieu Lieu
Credential
DMD
Primary taxonomy
General Practice Dentistry 1223G0001X
License number
D9671 OR
Self-reported in NPPES; status is on the state search
Practice location
13255 SE Stark St, Portland, OR 97233
Phone
(855) 433-6825
Enumerated
Dec 12, 2011
Record last updated
Aug 23, 2019 (not updated in 7 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.
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Also registered at 13255 SE Stark St

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

  1. Ciara Barton, R.D.H.Dental Hygienist1992051049
  2. Fouzia Bashir, DENTAL HYGIENISTDental Hygienist1720402886
  3. Don Chen, DDSDentist1306919238
  4. Katie Faulkner, RDHDental Hygienist1427396613
  5. Alysha HellbuschDental Hygienist1598189920
  6. Landis Kwong, DMDDentist1285262311

Verify Brian Sieu Lieu 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 D9671
    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

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2.2 times the Medicare Part D claims of the average general practice dentistry in 2024

186 Medicare Part D claims for 87 beneficiaries, against an average of 83 among the 70,290 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 20 claims were for opioids.

  1. Brian Lieu186
  2. Specialty average83

Most prescribed

  1. Chlorhexidine Gluconate74 claims
  2. Sodium Fluoride 5000 Plus32 claims
  3. Hydrocodone-Acetaminophen18 claims
  4. Sf 5000 Plus12 claims
  5. Ibuprofen11 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.

Brian Sieu Lieu among 1,888 general practice dentistry records in Oregon

Brian Sieu Lieu, DMD is one of 1,888 general practice dentistry records with a practice address in Oregon. 60% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 71% of them.

  • NPI issued2011 · 71% of these records are older, 27% newer
  • In a Medicare fileYes · 60% of these records are
  • In the CMS Doctors and Clinicians fileNo · under 1% of these records are
  • Record last updated2019 · 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 1223G0001X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

General Practice Dentistry providers in Oregon

There are 1,888 general practice dentistry records in Oregon.

The 8 general practice dentistry records with the nearest ZIP codes

  1. Abel Ahumada-Alaniz, D.M.D.Portland, OR 972331326150855
  2. David Anderson, DMDPortland, OR 972331437157906
  3. Margaret Anderson Brunner, DDSPortland, OR 972331548338809
  4. Bruce Austin, DMDPortland, OR 972331932133303
  5. Zoryana Brodsky, DMDPortland, OR 972331629182035
  6. Natalia Duvalko, DDSPortland, OR 972331730275231
  7. Joseph Elkhal, DMDPortland, OR 972331295728137
  8. Ziad Hazim, DDSPortland, OR 972331184666414

Common questions

What is Brian Sieu Lieu, DMD's NPI number?

Brian Sieu Lieu, DMD's National Provider Identifier (NPI) is 1306114830, issued on Dec 12, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Brian Sieu Lieu, DMD located?

The NPPES record lists a practice address at 13255 SE Stark St, Portland, OR, 97233. Phone: (855) 433-6825. Providers update this record themselves, so call before visiting.

How can I verify Brian Sieu Lieu, DMD's license?

NPPES lists Oregon license number D9671, as entered by the provider. Search the Oregon board that licenses this profession; the NPPES record confirms identity only.

How much does Brian Sieu Lieu, DMD prescribe under Medicare Part D?

In 2024, Brian Sieu Lieu, DMD had 186 Medicare Part D claims for 87 beneficiaries; the average among general practice dentistry prescribers was 83. 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.