NPPES file of Aug 9, 2026

Nathan Tam

Dentist · Covington, WA

Nathan Tam is a dentist with a practice address in Covington, Washington, and NPI 1659104636, issued on Aug 23, 2024. Check the license (Washington DE61689979, 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
1659104636
Name
Nathan Tam
Primary taxonomy
Dentist 122300000X
License number
DE61689979 WA
Self-reported in NPPES; status is on the state search
Practice location
27081 185TH Ave SE, Covington, WA 98042
Phone
(480) 257-6882
Enumerated
Aug 23, 2024
Record last updated
Feb 11, 2026
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 27081 185TH Ave SE

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

  1. Amanda Jackson, D.D.S.General Practice Dentistry1437370582

Verify Nathan Tam 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 DE61689979
    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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85% fewer Medicare Part D claims than the average dentist in 2024

13 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. Nathan Tam13
  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.

Nathan Tam among 2,767 dentist records in Washington

Nathan Tam 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 2024, is newer than 94% of them.

  • NPI issued2024 · 94% of these records are older, 3% 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 updated2026 · 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).

8 dentist records list a practice address in Covington

They are 8 of the 431 NPPES records with a practice address in Covington, and 2,767 dentist records in Washington.

The 8 dentist records with the nearest ZIP codes

  1. Jessica Ahn, DMDCovington, WA 980421275966178
  2. Kyle Blair, D.D.S.Covington, WA 980421245546068
  3. Kelly Hahn, DDSCovington, WA 980421205540267
  4. Trang Huynh, DDSCovington, WA 980421922654607
  5. Wade Marler, DDSCovington, WA 980421184755548
  6. Timothy Miller, DDSCovington, WA 980421346655453
  7. Christopher Park, D.D.S.Covington, WA 980421013203405
  8. Kathryn Jagow, D.D.SMountlake Terrace, WA 980431578904108

Common questions

What is Nathan Tam's NPI number?

Nathan Tam's National Provider Identifier (NPI) is 1659104636, issued on Aug 23, 2024. An NPI identifies a provider in billing; it is not a license.

Where is Nathan Tam located?

The NPPES record lists a practice address at 27081 185TH Ave SE, Covington, WA, 98042. Phone: (480) 257-6882. Providers update this record themselves, so call before visiting.

How can I verify Nathan Tam's license?

NPPES lists Washington license number DE61689979, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.

How much does Nathan Tam prescribe under Medicare Part D?

In 2024, Nathan Tam had 13 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.