NPPES file of Aug 9, 2026

Siamak Najafi-Abrandabadi, D.D.S

Dentist · Bellevue, WA

Siamak Najafi-Abrandabadi, D.D.S is a dentist with a practice address in Bellevue, Washington, and NPI 1356890081, issued on Sep 22, 2016. Check the license (Washington DE61247820, 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
1356890081
Name
Siamak Najafi-Abrandabadi
Credential
D.D.S
Primary taxonomy
Dentist 122300000X
License numbers
DE61247820 WA
106077 CA
36213 TX
0401416345 VA
Self-reported in NPPES; status is on the state search
Practice location
14645 NE Bel Red RD Ste 100, Bellevue, WA 98007
Phone
(425) 644-2205
Enumerated
Sep 22, 2016
Record last updated
Feb 23, 2025
Fax
(425) 644-1564
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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Verify Siamak Najafi-Abrandabadi 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 DE61247820
    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

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27% fewer Medicare Part D claims than the average dentist in 2024

63 Medicare Part D claims for 32 beneficiaries, 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. Siamak Najafi-Abrandabadi63
  2. Specialty average86

Most prescribed

  1. Amoxicillin35 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.

Industry payments in 2024: $79.75

1 payment: food and beverage; the largest payer was Align Technology, Inc. The 31,974 providers of this specialty with any payment received $540.36 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Siamak Najafi-Abrandabadi$79.75
  2. Specialty average$540.36

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Siamak Najafi-Abrandabadi among 2,767 dentist records in Washington

Siamak Najafi-Abrandabadi, D.D.S 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 2016, is newer than 65% of them.

  • NPI issued2016 · 65% of these records are older, 31% 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).

114 dentist records list a practice address in Bellevue

They are 114 of the 6,738 NPPES records with a practice address in Bellevue, and 2,767 dentist records in Washington.

The 8 dentist records with the nearest ZIP codes

  1. Elena Borodyansky, D.D.S.Bellevue, WA 980071548509540
  2. R. Cahoon, D.D.S., P.S.Bellevue, WA 980071699850156
  3. Hyejin Cheong, DDSBellevue, WA 980071437597721
  4. Elizabeth Finnessy, DDSBellevue, WA 980071124255484
  5. Michael Gile, DR.Bellevue, WA 980071073609673
  6. Lisa Kim, DDSBellevue, WA 980071598875874
  7. Regina Lederman, DDSBellevue, WA 980071154677367
  8. Randall Maebo, D.D.S.Bellevue, WA 980071780754820

Common questions

What is Siamak Najafi-Abrandabadi, D.D.S's NPI number?

Siamak Najafi-Abrandabadi, D.D.S's National Provider Identifier (NPI) is 1356890081, issued on Sep 22, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Siamak Najafi-Abrandabadi, D.D.S located?

The NPPES record lists a practice address at 14645 NE Bel Red RD Ste 100, Bellevue, WA, 98007. Phone: (425) 644-2205. Providers update this record themselves, so call before visiting.

How can I verify Siamak Najafi-Abrandabadi, D.D.S's license?

NPPES lists Washington license number DE61247820, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.

How much does Siamak Najafi-Abrandabadi, D.D.S prescribe under Medicare Part D?

In 2024, Siamak Najafi-Abrandabadi, D.D.S had 63 Medicare Part D claims for 32 beneficiaries; 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.