NPPES file of Aug 9, 2026

David W. Castle, PA-C

Surgical Physician Assistant · Tacoma, WA

David W. Castle, PA-C is a surgical physician assistant with a practice address in Tacoma, Washington, and NPI 1194740159, issued on Jul 12, 2006. Check the license (Washington PA10004531, 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
1194740159
Name
David W. Castle
Credential
PA-C
Primary taxonomy
Surgical Physician Assistant 363AS0400X
License number
PA10004531 WA
Self-reported in NPPES; status is on the state search
Practice location
315 Martin Luther King JR Way, Tacoma, WA 98405
Phone
(253) 403-7537
Enumerated
Jul 12, 2006
Record last updated
Mar 31, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(253) 403-7539
Medicaid ID
8366841 WA
Medicare enrollment
Enrolled (PECOS I20040317000432); accepts Medicare assignment
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 315 Martin Luther King JR Way

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

  1. Neilan John Acaso, PHD, APRN, FNP-CCritical Care Medicine Registered Nurse1851266654
  2. Ammara AftabInternal Medicine Physician1447038823
  3. Hamza Aftab, MDInternal Medicine Physician1689294175
  4. Majeed Al-Mateen, MDPediatrics Physician1134144157
  5. Mario Alinea, MDFamily Medicine Physician1093810459
  6. Bethany Allen, CCCAudiologist1629195144

Verify David W. Castle 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 PA10004531
    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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44% fewer Medicare Part D claims than the average surgical physician assistant in 2024

170 Medicare Part D claims for 75 beneficiaries, against an average of 304 among the 10,174 providers of this specialty who prescribed in Part D. 71 claims were for opioids.

  1. David Castle170
  2. Specialty average304

Most prescribed

  1. Oxycodone Hcl60 claims
  2. Ondansetron Odt40 claims
  3. Meloxicam38 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: $15.90

1 payment: food and beverage; the largest payer was Bioventus LLC. The 7,578 providers of this specialty with any payment received $703.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. David Castle$15.90
  2. Specialty average$703.95

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

Bills Medicare through one group practice

  1. Kaiser Foundation Health Plan OF WashingtonBellevue, WA

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

David W. Castle among 609 surgical physician assistant records in Washington

David W. Castle, PA-C is one of 609 surgical physician assistant records with a practice address in Washington. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 3% of them.

  • NPI issued2006 · 3% of these records are older, 74% newer
  • In a Medicare fileYes · 85% of these records are
  • In the CMS Doctors and Clinicians fileYes · 79% of these records are
  • Graduated2003 · median 2015 among the 479 with a school on file
  • Record last updated2021 · 49% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363AS0400X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Surgical Physician Assistant providers in Washington

There are 609 surgical physician assistant records in Washington.

The 8 surgical physician assistant records with the nearest ZIP codes

  1. Mark Arrant, P.A.Tacoma, WA 984051902960909
  2. Christopher Boeger, PA-CTacoma, WA 984051295768828
  3. Daniel Brocksmith, PA-CTacoma, WA 984051114942554
  4. Dean Douglas, PA-CTacoma, WA 984051053424333
  5. Malcolm Dugliss, PA-CTacoma, WA 984051336296193
  6. Yolanda Garoutte, PA-CTacoma, WA 984051154383917
  7. Jaylynn Hughes, PACTacoma, WA 984051093707440
  8. Ralph Mitchell, PHYSICIAN ASSISTANTTacoma, WA 984051942247572

Common questions

What is David W. Castle, PA-C's NPI number?

David W. Castle, PA-C's National Provider Identifier (NPI) is 1194740159, issued on Jul 12, 2006. An NPI identifies a provider in billing; it is not a license.

Where is David W. Castle, PA-C located?

The NPPES record lists a practice address at 315 Martin Luther King JR Way, Tacoma, WA, 98405. Phone: (253) 403-7537. Providers update this record themselves, so call before visiting.

How can I verify David W. Castle, PA-C's license?

NPPES lists Washington license number PA10004531, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.

How much does David W. Castle, PA-C prescribe under Medicare Part D?

In 2024, David W. Castle, PA-C had 170 Medicare Part D claims for 75 beneficiaries; the average among surgical physician assistant prescribers was 304. 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.