NPPES file of Aug 9, 2026

Derek James Knoth

Speech-Language Pathologist · Zeeland, MI

Derek James Knoth is a speech-language pathologist with a practice address in Zeeland, Michigan, and NPI 1730644907, issued on Feb 1, 2019. Check the license (Michigan 7101005757, as entered in NPPES) with the Michigan 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
1730644907
Name
Derek James Knoth
Primary taxonomy
Speech-Language Pathologist 235Z00000X
License number
7101005757 MI
Self-reported in NPPES; status is on the state search
Practice location
320 E Central Ave, Zeeland, MI 49464
Phone
(616) 772-9191
Enumerated
Feb 1, 2019
Record last updated
May 27, 2025
Medicare enrollment
Enrolled (PECOS I20230503001253); 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 320 E Central Ave

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

  1. Patrick Melder, MDInternal Medicine Physician1780688051
  2. Linda Skinner, PTPhysical Therapist1851894117
  3. Josilyn Vandewaa, MA CCC-SLPSpeech-Language Pathologist1457824302

Verify Derek James Knoth in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Michigan board licenses this profession
    Search for license 7101005757
    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 Michigan 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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Bills Medicare through one group practice

  1. Fox Rehabilitation Services MI LLCCanton, MI

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

Derek James Knoth among 3,734 speech-language pathologist records in Michigan

Derek James Knoth is one of 3,734 speech-language pathologist records with a practice address in Michigan. 4% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 53% of them.

  • NPI issued2019 · 53% of these records are older, 39% newer
  • In a Medicare fileYes · 4% of these records are
  • In the CMS Doctors and Clinicians fileYes · 8% of these records are
  • Graduated2017 · median 2019 among the 312 with a school on file
  • Record last updated2025 · 60% 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 Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

7 speech-language pathologist records list a practice address in Zeeland

They are 7 of the 471 NPPES records with a practice address in Zeeland, and 3,734 speech-language pathologist records in Michigan.

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

  1. Allison Booth, CF-SLPZeeland, MI 494641013862556
  2. Michelle KonynenbeltZeeland, MI 494641164890406
  3. Jami Petersen, MA, CCC-SLPZeeland, MI 494641104498278
  4. Kristen Van De RietZeeland, MI 494641477136232
  5. Josilyn Vandewaa, MA CCC-SLPZeeland, MI 494641457824302
  6. Martha VeldkampZeeland, MI 494641225607922
  7. Erin Carmode, MS, CCC-SLPSpring Lake, MI 494561891437513
  8. Devon Lawrey, MA, CCC-SLPSpring Lake, MI 494561356868152

Common questions

What is Derek James Knoth's NPI number?

Derek James Knoth's National Provider Identifier (NPI) is 1730644907, issued on Feb 1, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Derek James Knoth located?

The NPPES record lists a practice address at 320 E Central Ave, Zeeland, MI, 49464. Phone: (616) 772-9191. Providers update this record themselves, so call before visiting.

How can I verify Derek James Knoth's license?

NPPES lists Michigan license number 7101005757, as entered by the provider. Search the Michigan 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.