NPPES file of Aug 9, 2026

Thomas J. Denczek, LMSW

Clinical Social Worker · Holland, MI

Thomas J. Denczek, LMSW is a clinical social worker with a practice address in Holland, Michigan, and NPI 1568502664, issued on Feb 7, 2007. Check the license (Michigan 6801078171, 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
1568502664
Name
Thomas J. Denczek
Credential
LMSW
Primary taxonomy
Clinical Social Worker 1041C0700X
License number
6801078171 MI
Self-reported in NPPES; status is on the state search
Practice location
854 S Washington Ave, Holland, MI 49423
Phone
(616) 392-5141
Enumerated
Feb 7, 2007
Record last updated
Aug 7, 2019 (not updated in 7 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20190816001210); 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 854 S Washington Ave

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

  1. Lorraine Harper, LMSWClinical Social Worker1649314600
  2. Thomas Kuhn, M.D.Psychiatry Physician1235109372
  3. Jayne Lubbers, LMSWClinical Social Worker1144360165
  4. John Norder, LMSWClinical Social Worker1942340872
  5. Jean Russner, MA LLPClinical Psychologist1851431787

Verify Thomas J. Denczek 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 6801078171
    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. Life Support LLCGrand Rapids, MI

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

Thomas J. Denczek among 17,644 clinical social worker records in Michigan

Thomas J. Denczek, LMSW is one of 17,644 clinical social worker records with a practice address in Michigan. 14% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 9% of them.

  • NPI issued2007 · 9% of these records are older, 82% newer
  • In a Medicare fileYes · 14% of these records are
  • In the CMS Doctors and Clinicians fileYes · 20% of these records are
  • Graduated1999 · median 2012 among the 3,587 with a school on file
  • Record last updated2019 · 52% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1041C0700X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

267 clinical social worker records list a practice address in Holland

They are 267 of the 2,124 NPPES records with a practice address in Holland, and 17,644 clinical social worker records in Michigan.

The 8 clinical social worker records with the nearest ZIP codes

  1. Patricia Baer, LMSWHolland, MI 494231174615009
  2. Criselda Bazan, LMSWHolland, MI 494231487691358
  3. Sherryl Cole, LMSWHolland, MI 494231265442404
  4. Ralph Edgington, ACSW, LMSWHolland, MI 494231326121690
  5. Janet Laing, LMSW, CAADC, CCS-MHolland, MI 494231083798615
  6. Mary Mooi, LCSWHolland, MI 494231760585301
  7. Diana Mudde, LMSW, ACSWHolland, MI 494231922188028
  8. Thomas Mullens, LMSW, CAADCHolland, MI 494231801978903

Common questions

What is Thomas J. Denczek, LMSW's NPI number?

Thomas J. Denczek, LMSW's National Provider Identifier (NPI) is 1568502664, issued on Feb 7, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Thomas J. Denczek, LMSW located?

The NPPES record lists a practice address at 854 S Washington Ave, Holland, MI, 49423. Phone: (616) 392-5141. Providers update this record themselves, so call before visiting.

How can I verify Thomas J. Denczek, LMSW's license?

NPPES lists Michigan license number 6801078171, 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.