NPPES file of Aug 9, 2026

Hannah Elizabeth Gassaway, M.S. CCC-SLP

Speech-Language Pathologist · Muskogee, OK

Hannah Elizabeth Gassaway, M.S. CCC-SLP is a speech-language pathologist with a practice address in Muskogee, Oklahoma, and NPI 1811738727, issued on Jun 4, 2024. Check the license (Oklahoma 6420, as entered in NPPES) with the Oklahoma 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
1811738727
Name
Hannah Elizabeth Gassaway
Credential
M.S. CCC-SLP
Primary taxonomy
Speech-Language Pathologist 235Z00000X
License number
6420 OK
Self-reported in NPPES; status is on the state search
Practice location
1111 N 36TH St, Muskogee, OK 74401
Phone
(918) 683-4621
Enumerated
Jun 4, 2024
Record last updated
Apr 19, 2025
Fax
(918) 683-4002
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 1111 N 36TH St

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

  1. Brandi Debruin, MS-CCC-SLPSpeech-Language Pathologist1497137962
  2. Caitlin Hoagland, OTR/LOccupational Therapist1992225361
  3. Keelie Nail, PT, DPTPediatric Physical Therapist1801462577
  4. Patricia Pack, PTPediatric Rehabilitation Medicine Physician1013027275
  5. Christina Parisotto, PTAPhysical Therapy Assistant1194317263
  6. Catherine Ross, MS, CCC-SLPSpeech-Language Pathologist1801228424

Verify Hannah Elizabeth Gassaway in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Oklahoma board licenses this profession
    Search for license 6420
    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 Oklahoma license search

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39 speech-language pathologist records list a practice address in Muskogee

They are 39 of the 1,769 NPPES records with a practice address in Muskogee, and 2,454 speech-language pathologist records in Oklahoma. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other speech-language pathologist records in Oklahoma

  1. Mary Aboud, CCC-SLPTulsa, OK1992476931
  2. Mitzi Abraham, MS CCC-SLPClaremore, OK1891669222
  3. Carrie AbramsOklahoma City, OK1366033870
  4. Deborah Abshere, MEDCCCSLPEdmond, OK1871890467
  5. Lynette Acebo, M.S. CCC-SLPJenks, OK1023150190
  6. Deanna Adams, M.S.McAlester, OK1457450132
  7. Julie Adams, MS-CCC-SLPMidwest City, OK1942750716
  8. McKenzie Adams, CCC-SLPNorman, OK1851910434
  9. Peggy Adams, M.ED. CCCTulsa, OK1558661090
  10. Sara AdamsOwasso, OK1871917120

Common questions

What is Hannah Elizabeth Gassaway, M.S. CCC-SLP's NPI number?

Hannah Elizabeth Gassaway, M.S. CCC-SLP's National Provider Identifier (NPI) is 1811738727, issued on Jun 4, 2024. An NPI identifies a provider in billing; it is not a license.

Where is Hannah Elizabeth Gassaway, M.S. CCC-SLP located?

The NPPES record lists a practice address at 1111 N 36TH St, Muskogee, OK, 74401. Phone: (918) 683-4621. Providers update this record themselves, so call before visiting.

How can I verify Hannah Elizabeth Gassaway, M.S. CCC-SLP's license?

NPPES lists Oklahoma license number 6420, as entered by the provider. Search the Oklahoma 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.

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.