NPPES file of Aug 9, 2026

Mark Thoreau Olin, DC

Rehabilitation Chiropractor · Seattle, WA

Mark Thoreau Olin, DC is a rehabilitation chiropractor with a practice address in Seattle, Washington, and NPI 1780367417, issued on Aug 9, 2023. Check the license (Washington CH61462281, as entered in NPPES) with the Washington board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1780367417
Name
Mark Thoreau Olin
Credential
DC
Primary taxonomy
Rehabilitation Chiropractor 111NR0400X
License number
CH61462281 WA
Self-reported in NPPES; status is on the state search
Practice location
1225 Dexter Ave N, Seattle, WA 98109
Phone
(206) 497-4962
Enumerated
Aug 9, 2023
Record last updated
Aug 9, 2023
Fax
(206) 316-8655
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 1225 Dexter Ave N

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

  1. Clay Brannen, LMPMassage Therapist1902236086
  2. Dionna CouchSpecialist1538589445
  3. Rachel Giordano, NDNaturopath1528386620

Verify Mark Thoreau Olin 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 CH61462281    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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Rehabilitation Chiropractor providers in Washington

There are 64 rehabilitation chiropractor records in Washington. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 64 in Washington → Every provider in Seattle →

Other rehabilitation chiropractor records in Washington

  1. Anthony AamodtFederal Way, WA1669850798
  2. Jeremiah Aden, DCBainbridge Island, WA1346873445
  3. David Adich, D.C.Bellingham, WA1275756041
  4. Ashley Agcaoili, DCLynnwood, WA1477028173
  5. Youngwuk An, DCSeattle, WA1518043181
  6. Angelina Armstrong, DCLynnwood, WA1952446882
  7. Alyssa Avila, DCSeattle, WA1437783768
  8. Jay Baker, D.C.Federal Way, WA1720141161
  9. David Baum, D.C.Seattle, WA1770986739
  10. Vyacheslav Borisenko, D.C.Kent, WA1689744500

Common questions

What is Mark Thoreau Olin, DC's NPI number?

Mark Thoreau Olin, DC's National Provider Identifier (NPI) is 1780367417, issued on Aug 9, 2023. An NPI identifies a provider in billing; it is not a license.

Where is Mark Thoreau Olin, DC located?

The NPPES record lists a practice address at 1225 Dexter Ave N, Seattle, WA, 98109. Phone: (206) 497-4962. Providers update this record themselves, so call before visiting.

How can I verify Mark Thoreau Olin, DC's license?

NPPES lists Washington license number CH61462281, 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. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.