NPPES file of Aug 9, 2026

Arthur S. Chandless, D.C.

Chiropractor · Mercer Island, WA

Arthur S. Chandless, D.C. is a chiropractor with a practice address in Mercer Island, Washington, and NPI 1417150517, issued on Jun 6, 2007. Check the license (Washington CH00002430, 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1417150517
Name
Arthur S. Chandless
Credential
D.C.
Primary taxonomy
Chiropractor 111N00000X
License number
CH00002430 WA
Self-reported in NPPES; status is on the state search
Practice location
2825 80TH Ave SE, Mercer Island, WA 98040
Phone
(206) 232-2000
Enumerated
Jun 6, 2007
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(206) 232-2000
Medicare enrollment
Enrolled (PECOS I20210308000477); accepts Medicare assignment
Medical or professional school
Palmer College Chiropractic - Davenport, 1989
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 2825 80TH Ave SE

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

  1. Meredith Horiuchi, EAMP, LACAcupuncturist1659046688

Verify Arthur S. Chandless 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 CH00002430
    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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Bills Medicare through one group practice

  1. Gonstead Chiropractic OF Seattle PCTukwila, WA

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

Arthur S. Chandless among 3,006 chiropractor records in Washington

Arthur S. Chandless, D.C. is one of 3,006 chiropractor records with a practice address in Washington. 21% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 31% of them.

  • NPI issued2007 · 31% of these records are older, 47% newer
  • In a Medicare fileYes · 21% of these records are
  • In the CMS Doctors and Clinicians fileYes · 42% of these records are
  • Graduated1989 · median 2005 among the 1,275 with a school on file
  • Record last updated2007 · 75% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 111N00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

7 chiropractor records list a practice address in Mercer Island

They are 7 of the 331 NPPES records with a practice address in Mercer Island, and 3,006 chiropractor records in Washington.

The 8 chiropractor records with the nearest ZIP codes

  1. Casey Campbell, DCMercer Island, WA 980401770123689
  2. Hali Enderby, DCMercer Island, WA 980401811436363
  3. Jeffrey PartonMercer Island, WA 980401639249873
  4. Korissa Ramage, DCMercer Island, WA 980401932871662
  5. Kyle Siskar, D.C.Mercer Island, WA 980401972175826
  6. William Warburton, D.C.Mercer Island, WA 980401487854915
  7. Kevin Andersen, D.C.Kent, WA 980421568568251
  8. Jacob Brown, D.C.Maple Valley, WA 980381194114181

Common questions

What is Arthur S. Chandless, D.C.'s NPI number?

Arthur S. Chandless, D.C.'s National Provider Identifier (NPI) is 1417150517, issued on Jun 6, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Arthur S. Chandless, D.C. located?

The NPPES record lists a practice address at 2825 80TH Ave SE, Mercer Island, WA, 98040. Phone: (206) 232-2000. Providers update this record themselves, so call before visiting.

How can I verify Arthur S. Chandless, D.C.'s license?

NPPES lists Washington license number CH00002430, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity 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.