NPPES file of Aug 9, 2026

Katherine Nguyen

Dentist · Lynnwood, WA

Katherine Nguyen is a dentist with a practice address in Lynnwood, Washington, and NPI 1508475997, issued on Jul 30, 2020. Check the license (Washington 61474917, as entered in NPPES) with the Washington 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
1508475997
Name
Katherine Nguyen
Primary taxonomy
Dentist 122300000X
License numbers
61474917 WA
105113 CA
Self-reported in NPPES; status is on the state search
Practice location
4111 194TH St SW, Lynnwood, WA 98036
Phone
(714) 809-9997
Enumerated
Jul 30, 2020
Record last updated
Nov 3, 2025
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 4111 194TH St SW

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

  1. Jenna Alvey, DDSDentist1710290614
  2. Bishoy AwadDentist1821626706
  3. Ritika Chandra, D.M.DDentist1639584782
  4. Chun Chen, RDHDental Hygienist1629711197
  5. Jacqueline Diercks, PHARM.D.Pharmacist1770878076
  6. Alana East, DDSDentist1043524531

Verify Katherine Nguyen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Washington board licenses this profession
    Search for license 61474917
    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 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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87% fewer Medicare Part D claims than the average dentist in 2024

11 Medicare Part D claims, against an average of 86 among the 51,021 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Katherine Nguyen11
  2. Specialty average86

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.

Katherine Nguyen among 2,767 dentist records in Washington

Katherine Nguyen is one of 2,767 dentist records with a practice address in Washington. 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 2020, is newer than 79% of them.

  • NPI issued2020 · 79% of these records are older, 18% 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 updated2025 · 64% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 122300000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

59 dentist records list a practice address in Lynnwood

They are 59 of the 2,501 NPPES records with a practice address in Lynnwood, and 2,767 dentist records in Washington.

The 8 dentist records with the nearest ZIP codes

  1. Scott Andrews, DDSBrier, WA 980361326114422
  2. Valeriy Beliy, DMDLynnwood, WA 980361790855005
  3. Abrah Goudarzi, DDSLynnwood, WA 980361225119944
  4. Raymond Hotz, DDSLynnwood, WA 980361689734808
  5. Massoud Khami, DDSLynnwood, WA 980361548333461
  6. Elisa Larrondo, D.D.S.Lynnwood, WA 980361578781282
  7. Ting-Ting Tina Liu, DDSLynnwood, WA 980361710069992
  8. Steven Machida, D.D.S.Lynnwood, WA 980361912111220

Common questions

What is Katherine Nguyen's NPI number?

Katherine Nguyen's National Provider Identifier (NPI) is 1508475997, issued on Jul 30, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Katherine Nguyen located?

The NPPES record lists a practice address at 4111 194TH St SW, Lynnwood, WA, 98036. Phone: (714) 809-9997. Providers update this record themselves, so call before visiting.

How can I verify Katherine Nguyen's license?

NPPES lists Washington license number 61474917, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.

How much does Katherine Nguyen prescribe under Medicare Part D?

In 2024, Katherine Nguyen had 11 Medicare Part D claims; the average among dentist prescribers was 86. 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.