NPPES file of Aug 9, 2026

W T. Longstreth

Neurology Physician · Seattle, WA

W T. Longstreth is a neurology physician with a practice address in Seattle, Washington, and NPI 1033299037, issued on Oct 16, 2006. Check the license (Washington MD00015423, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1033299037
Name
W T. Longstreth
Primary taxonomy
Neurology Physician 2084N0400X
License number
MD00015423 WA
Self-reported in NPPES; status is on the state search
Practice location
Harborview Medical Center, Seattle, WA 98104
Phone
(206) 731-3992
Enumerated
Oct 16, 2006
Record last updated
Jan 12, 2012 (not updated in 14 years: call before relying on the address or phone)
Medicaid ID
1033299037 WA
Medicare enrollment
Enrolled (PECOS I20060411000275); accepts Medicare assignment
Medical or professional school
Perelman School Of Med At The University Of Pennsylvania, 1975
Telehealth
Offers telehealth (CMS)
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 Harborview Medical Center

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

  1. Emily AlbrechtPhysician Assistant1871679688
  2. Jordan Allen, RRTCritical Care Registered Respiratory Therapist1750270922
  3. David AveryPsychiatry Physician1548349293
  4. David BareiOrthopaedic Trauma Physician1316023112
  5. Scott Barnhart, MDPulmonary Disease Physician1134205933
  6. Kyra BeckerNeurology Physician1902985666

Verify W T. Longstreth in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWashington Medical Commission
    Search for license MD00015423
    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

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92% fewer Medicare Part D claims than the average neurology physician in 2024

107 Medicare Part D claims for 18 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D.

  1. W Longstreth107
  2. Specialty average1,370

Most prescribed

  1. Lamotrigine34 claims
  2. Lacosamide32 claims
  3. Pregabalin16 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.

The MIPS final score for 2023 (Medicare payment program): 93.1 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score74.0
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. The Association OF University PhysiciansSeattle, WA

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

W T. Longstreth among 489 neurology physician records in Washington

W T. Longstreth is one of 489 neurology physician records with a practice address in Washington. 82% 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 7% of them.

  • NPI issued2006 · 7% of these records are older, 60% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 72% of these records are
  • Graduated1975 · median 2007 among the 351 with a school on file
  • Record last updated2012 · 57% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0400X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Neurology Physician providers in Washington

There are 489 neurology physician records in Washington.

The 8 neurology physician records with the nearest ZIP codes

  1. William Berg, M.D.Seattle, WA 981041568461507
  2. Alex Cooper, M.D.Seattle, WA 981041689646614
  3. Arielle Davis, MDSeattle, WA 981041942316401
  4. Gwenn GardenSeattle, WA 981041982780797
  5. Emily Ho, M.D.Seattle, WA 981041598861841
  6. Sandeep Khot, MDSeattle, WA 981041629015367
  7. John MillerSeattle, WA 981041942380910
  8. Bart Muller, M.D.Seattle, WA 981041104815885

Common questions

What is W T. Longstreth's NPI number?

W T. Longstreth's National Provider Identifier (NPI) is 1033299037, issued on Oct 16, 2006. An NPI identifies a provider in billing; it is not a license.

Where is W T. Longstreth located?

The NPPES record lists a practice address at Harborview Medical Center, Seattle, WA, 98104. Phone: (206) 731-3992. Providers update this record themselves, so call before visiting.

How can I verify W T. Longstreth's license?

NPPES lists Washington license number MD00015423, 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.

How much does W T. Longstreth prescribe under Medicare Part D?

In 2024, W T. Longstreth had 107 Medicare Part D claims for 18 beneficiaries; the average among neurology physician prescribers was 1,370. Part D covers Medicare prescriptions only.

What is W T. Longstreth's MIPS final score?

The 2023 MIPS final score is 93.1 of 100. The average among 454,083 clinicians with a measured score was 83.5.

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.