NPPES file of Aug 9, 2026

Isaac Kosydar, CF-SLP

Speech-Language Pathologist · Longview, WA

Isaac Kosydar, CF-SLP is a speech-language pathologist with a practice address in Longview, Washington, and NPI 1861914624, issued on Jul 13, 2017. Check the license (Washington SI60697159, 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
1861914624
Name
Isaac Kosydar
Credential
CF-SLP
Primary taxonomy
Speech-Language Pathologist 235Z00000X
License number
SI60697159 WA
Self-reported in NPPES; status is on the state search
Practice location
917 7TH Ave, Longview, WA 98632
Phone
(503) 425-5910
Enumerated
Jul 13, 2017
Record last updated
Jul 13, 2017 (not updated in 9 years: call before relying on the address or phone)
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.
Download card Updates feed

8 nearest speech-language pathologist records → All 4,109 in Washington → Look up another NPI →

Also registered at 917 7TH Ave

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

  1. Daniela Bustamante, MOTOccupational Therapist1497243992
  2. Nicholas Chambers, DPTPhysical Therapist1205219201
  3. Lucas DolanPhysical Therapist1134691835
  4. Ashley McCulloch, COTA/L, DOROccupational Therapy Assistant1902398803
  5. Amy McGowan, PTAPhysical Therapy Assistant1245942051
  6. Andrea Taylor, OTR/LOccupational Therapist1811125453

Verify Isaac Kosydar 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 SI60697159    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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

Isaac Kosydar among 4,109 speech-language pathologist records in Washington

Isaac Kosydar, CF-SLP is one of 4,109 speech-language pathologist records with a practice address in Washington. 2% 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 2017, is newer than 56% of them.

  • NPI issued2017 · 56% of these records are older, 39% newer
  • In a Medicare fileNo · 2% of these records are
  • In the CMS Doctors and Clinicians fileNo · 4% of these records are
  • Record last updated2017 · 67% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 235Z00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

37 speech-language pathologist records list a practice address in Longview

They are 37 of the 1,933 NPPES records with a practice address in Longview, and 4,109 speech-language pathologist records in Washington. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 4,109 in Washington → Every provider in Longview → Speech-Language Pathologist nationwide →

The 8 speech-language pathologist records with the nearest ZIP codes

  1. Lucinda Bowman, MS, CCC-SLPLongview, WA 986321477984714
  2. Joan Carpenter, M.A, CCC-SLPLongview, WA 986321154675221
  3. Hannah CatlinLongview, WA 986321013450303
  4. Nancy D'Urso, SLP-CCCLongview, WA 986321144579434
  5. Dona DavisLongview, WA 986321053661421
  6. Rachel Dille, SLPLongview, WA 986321336305515
  7. Ginger Gardner, CCC-SLPLongview, WA 986321801058367
  8. Brenda Hiegel, SLPLongview, WA 986321992830608

Common questions

What is Isaac Kosydar, CF-SLP's NPI number?

Isaac Kosydar, CF-SLP's National Provider Identifier (NPI) is 1861914624, issued on Jul 13, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Isaac Kosydar, CF-SLP located?

The NPPES record lists a practice address at 917 7TH Ave, Longview, WA, 98632. Phone: (503) 425-5910. Providers update this record themselves, so call before visiting.

How can I verify Isaac Kosydar, CF-SLP's license?

NPPES lists Washington license number SI60697159, 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.