NPPES file of Aug 9, 2026

Rebecca Ganzak

Clinical Social Worker · Holland, MI

Rebecca Ganzak is a clinical social worker with a practice address in Holland, Michigan, and NPI 1023777240, issued on Dec 15, 2021. Check the license (Michigan 6801118608, 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
1023777240
Name
Rebecca Ganzak
Primary taxonomy
Clinical Social Worker 1041C0700X
License number
6801118608 MI
Self-reported in NPPES; status is on the state search
Practice location
238 Hoover Blvd Ste Holland, Holland, MI 49423
Phone
(616) 312-2989
Enumerated
Dec 15, 2021
Record last updated
Dec 5, 2025
Medicare enrollment
Enrolled (PECOS I20250801000829); 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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Verify Rebecca Ganzak 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 6801118608
    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. Emhpe Michigan PLLCHolland, MI

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

Rebecca Ganzak among 17,644 clinical social worker records in Michigan

Rebecca Ganzak 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 2021, is newer than 72% of them.

  • NPI issued2021 · 72% of these records are older, 22% newer
  • In a Medicare fileYes · 14% of these records are
  • In the CMS Doctors and Clinicians fileYes · 20% of these records are
  • Graduated2022 · median 2012 among the 3,587 with a school on file
  • Record last updated2025 · 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 Rebecca Ganzak's NPI number?

Rebecca Ganzak's National Provider Identifier (NPI) is 1023777240, issued on Dec 15, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Rebecca Ganzak located?

The NPPES record lists a practice address at 238 Hoover Blvd Ste Holland, Holland, MI, 49423. Phone: (616) 312-2989. Providers update this record themselves, so call before visiting.

How can I verify Rebecca Ganzak's license?

NPPES lists Michigan license number 6801118608, 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.