NPPES file of Aug 9, 2026

Molly L. Gassensmith, MA, CCC-SLP/L

Speech-Language Pathologist · Seattle, WA

Molly L. Gassensmith, MA, CCC-SLP/L is a speech-language pathologist with a practice address in Seattle, Washington, and NPI 1427438233, issued on Jun 5, 2015. Check the license (Washington LL60787898, 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1427438233
Name
Molly L. Gassensmith
Credential
MA, CCC-SLP/L
Primary taxonomy
Speech-Language Pathologist 235Z00000X
License numbers
LL60787898 WA
146.012505 IL
Self-reported in NPPES; status is on the state search
Practice location
1100 9TH Ave, Seattle, WA 98101
Phone
(206) 223-6600
Enumerated
Jun 5, 2015
Record last updated
Mar 26, 2018 (not updated in 8 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20180323001224); accepts Medicare assignment
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 1100 9TH Ave

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

  1. Barry Aaronson, MDHospitalist Physician1952418345
  2. David Aboulafia, MDHematology & Oncology Physician1043269392
  3. Deborah Abrams, M.D.Hematology & Oncology Physician1902974835
  4. Alvin Aceron, ARNPAdult Health Nurse Practitioner1639488562
  5. Ream AdeebAdult Health Nurse Practitioner1760868855
  6. Steven Adler, MDDiagnostic Ultrasound Physician1639108046

Verify Molly L. Gassensmith 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 LL60787898
    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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One hospital affiliation

  1. Virginia Mason Medical CenterSeattle, WA · Acute Care Hospitals5 of 5 stars

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

534 speech-language pathologist records list a practice address in Seattle

They are 534 of the 41,956 NPPES records with a practice address in Seattle, and 4,109 speech-language pathologist records in Washington.

Other speech-language pathologist records in Washington

  1. Melissa Aar, MS, MS, CF-SLPEverett, WA1699336735
  2. Elizabeth Aarstol, M.A. CCC-SLPBellingham, WA1750876827
  3. Jessica Abawag, CCC-SLPUniversity Place, WA1225392392
  4. Elise Abel, M.A., CF-SLPSpokane, WA1295349835
  5. Megan AbergerIssaquah, WA1679074512
  6. Deanna AberleSeattle, WA1932400652
  7. Tracy Abeto, M.S., CCC-SLPSeattle, WA1134561467
  8. Hannah AbrahamTacoma, WA1467223545
  9. Kierra Abraham, M.S., CCC-SLPBellevue, WA1346928835
  10. Stephanie Abutin, ,MS, CCC-SLPSeattle, WA1902522444

Common questions

What is Molly L. Gassensmith, MA, CCC-SLP/L's NPI number?

Molly L. Gassensmith, MA, CCC-SLP/L's National Provider Identifier (NPI) is 1427438233, issued on Jun 5, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Molly L. Gassensmith, MA, CCC-SLP/L located?

The NPPES record lists a practice address at 1100 9TH Ave, Seattle, WA, 98101. Phone: (206) 223-6600. Providers update this record themselves, so call before visiting.

How can I verify Molly L. Gassensmith, MA, CCC-SLP/L's license?

NPPES lists Washington license number LL60787898, 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. 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.