NPPES file of Aug 9, 2026

Thomas Harmon Castle, MD

Orthopaedic Surgery Physician · Bellevue, WA

Thomas Harmon Castle, MD is an orthopaedic surgery physician with a practice address in Bellevue, Washington, and NPI 1881665677, issued on Jan 30, 2006. Check the license (Washington MD00025341, as entered in NPPES) on the Washington Medical Commission; 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
1881665677
Name
Thomas Harmon Castle
Credential
MD
Primary taxonomy
Orthopaedic Surgery Physician 207X00000X
License number
MD00025341 WA
Self-reported in NPPES; status is on the state search
Practice location
1231 116TH Ave NE, Bellevue, WA 98004
Phone
(425) 455-3600
Enumerated
Jan 30, 2006
Record last updated
May 15, 2012 (not updated in 14 years: call before relying on the address or phone)
Fax
(425) 455-3920
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 1231 116TH Ave NE

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

  1. Lisa Abel, ARNPWomen's Health Nurse Practitioner1609875855
  2. Cynthia Anonsen, MDOtolaryngology Physician1568417608
  3. Sung Cho, MDSurgery Physician1588822951
  4. Alexandra Degroot, AUDAudiologist1437426970
  5. Shelby Dobbs, PACSurgical Physician Assistant1184669491
  6. Trac Duong, M.D.Otolaryngology Physician1659566560

Verify Thomas Harmon Castle in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWashington Medical Commission
    Search for license MD00025341
    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
Open 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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Thomas Harmon Castle among 656 orthopaedic surgery physician records in Washington

Thomas Harmon Castle, MD is one of 656 orthopaedic surgery physician records with a practice address in Washington. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 7% of them.

  • NPI issued2006 · 7% of these records are older, 46% newer
  • In a Medicare fileNo · 67% of these records are
  • In the CMS Doctors and Clinicians fileNo · 59% of these records are
  • Record last updated2012 · 63% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207X00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Orthopaedic Surgery Physician providers in Washington

There are 656 orthopaedic surgery physician records in Washington. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 orthopaedic surgery physician records with the nearest ZIP codes

  1. Clayton Brandes, MDBellevue, WA 980041396716346
  2. James Bruckner, MDBellevue, WA 980041154392942
  3. Thomas Chi, MDBellevue, WA 980041487625430
  4. Frederic Chi, M.D.Bellevue, WA 980041700828555
  5. Gregory Komenda, M.D.Bellevue, WA 980041972562528
  6. Peter Mandt, M.D.Bellevue, WA 980041730158148
  7. Mathew Nicholls, MDBellevue, WA 980041336180413
  8. Douglas Patch, MDBellevue, WA 980041942223292

Common questions

What is Thomas Harmon Castle, MD's NPI number?

Thomas Harmon Castle, MD's National Provider Identifier (NPI) is 1881665677, issued on Jan 30, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Thomas Harmon Castle, MD located?

The NPPES record lists a practice address at 1231 116TH Ave NE, Bellevue, WA, 98004. Phone: (425) 455-3600. Providers update this record themselves, so call before visiting.

How can I verify Thomas Harmon Castle, MD's license?

NPPES lists Washington license number MD00025341, as entered by the provider. Search the Washington Medical Commission at https://wahelms.my.site.com/s/license-search. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

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.

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.