Marci Frances Witkowski, LMSW
Clinical Social Worker · Greenville, MI
Marci Frances Witkowski, LMSW is a clinical social worker with a practice address in Greenville, Michigan, and NPI 1972057081, issued on Aug 5, 2016. Check the license (Michigan 6801100020, as entered in NPPES) with the Michigan board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Marci Frances Witkowski
- Credential
- LMSW
- Primary taxonomy
- Clinical Social Worker 1041C0700X
- License number
- 6801100020 MI
Self-reported in NPPES; status is on the state search - Practice location
- 1202 W Oak St, Greenville, MI 48838
- Phone
- (616) 754-2944
- Enumerated
- Aug 5, 2016
- Record last updated
- Jan 26, 2026
- Medicare enrollment
- Enrolled (PECOS I20190125000176); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest clinical social worker records → All 17,644 in Michigan → Look up another NPI →
Also registered at 1202 W Oak St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Magdalena Babinska-Hogan, MDFamily Medicine Physician1053871996
- Lauren Beghtol, DOObstetrics & Gynecology Physician1932694320
- Katherine Behrenwald, PA-CPhysician Assistant1942698576
- Ruth Bruce, D.O.Obstetrics & Gynecology Physician1134397466
- Sabrina Carlson, MSN, FNP-CNurse Practitioner1144973728
- Megan Czmer, DOObstetrics & Gynecology Physician1700521838
Verify Marci Frances Witkowski in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Michigan board licenses this profession
Search for license 6801100020Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- LJ Counseling Services LLCGrand Rapids, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marci Frances Witkowski among 17,644 clinical social worker records in Michigan
Marci Frances Witkowski, 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 2016, is newer than 47% of them.
- NPI issued2016 · 47% of these records are older, 48% newer
- In a Medicare fileYes · 14% of these records are
- In the CMS Doctors and Clinicians fileYes · 20% of these records are
- Graduated2016 · median 2012 among the 3,587 with a school on file
- Record last updated2026 · 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).
31 clinical social worker records list a practice address in Greenville
They are 31 of the 363 NPPES records with a practice address in Greenville, and 17,644 clinical social worker records in Michigan.
All 17,644 in Michigan → Every provider in Greenville → Clinical Social Worker nationwide →
The 8 clinical social worker records with the nearest ZIP codes
- Chad Campbell, LMSWGreenville, MI 488381457461428
- Mark Chapman, LMSWGreenville, MI 488381750602751
- Julie Ford, MSWGreenville, MI 488381699003525
- Joel Hoekema, LMSWGreenville, MI 488381467731752
- Lacey Jones, LLMSWGreenville, MI 488381174860977
- James Martin, LMSWGreenville, MI 488381245358365
- Sue Pabst, LMSWGreenville, MI 488381790014637
- Leah Quintanilla, LMSWGreenville, MI 488381639485717
Common questions
What is Marci Frances Witkowski, LMSW's NPI number?
Marci Frances Witkowski, LMSW's National Provider Identifier (NPI) is 1972057081, issued on Aug 5, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Marci Frances Witkowski, LMSW located?
The NPPES record lists a practice address at 1202 W Oak St, Greenville, MI, 48838. Phone: (616) 754-2944. Providers update this record themselves, so call before visiting.
How can I verify Marci Frances Witkowski, LMSW's license?
NPPES lists Michigan license number 6801100020, 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.