Marci Frances Witkowski, LMSW

Primary specialty

Clinical Social WorkerTaxonomy code 1041C0700X

License

6801100020 Issued in MI

Practice address

1202 W Oak St
Greenville, MI 48838-2155

Phone

(616) 754-2944

NPI assigned

Aug 5, 2016

Last updated

Jan 26, 2026By the provider in NPPES

Sex

Female

Sole proprietor

No

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Addresses

Other names 1

• Marci Frances Gleason Former name

Medicare fee-for-service enrollment

Enrolled in MI

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: No
• Power mobility devices: No
• Hospice: No

Green means eligible to order or refer.

Enrollment records 1

Specialty

Clinical Social Worker

Education

Other, 2016

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

LJ Counseling Services LLCGroup PAC ID 9537589593, 2 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Practice roles

Locations

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

• LJ Counseling Services LLC

  dba Lake Michigan Counseling Services

  • Clinical Social Worker
  • Rockford, MI
  • NPI 1174134654
  Medicare reassignment Care Compare group NPD
• Mecosta County Medical Center

  dba Spectrum Health Big Rapids Hospital

  • Cardiovascular Disease Physician
  • Big Rapids, MI
  • NPI 1386693471
  Medicare reassignment NPD
• Pine Rest Christian Mental Health Services

  • Social Worker
  • Grand Rapids, MI
  • NPI 1922019157
  Medicare reassignment NPD
• Spectrum Health United

  dba Corewell Health Greenville Hospital

  • General Acute Care Hospital
  • Greenville, MI
  • NPI 1457304495
  Medicare reassignment NPD
• Mecosta County Medical Center

  dba Corewell Health Big Rapids Hospital

  • General Acute Care Hospital
  • Big Rapids, MI
  • NPI 1316945991
  NPD
• Mecosta County Medical Center

  dba Corewell Health Big Rapids Hospital Professional

  • Family Medicine Physician
  • Big Rapids, MI
  • NPI 1366730566
  NPD
• Pine Rest Christian Mental Health Services

  • Professional Counselor
  • Grand Rapids, MI
  • NPI 1386015683
  NPD
• Spectrum Health United

  dba Corewell Health Greenville Hospital Professional

  • Family Medicine Physician
  • Greenville, MI
  • NPI 1063781342
  NPD

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1470355200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1769385600000",
    "number": "1972057081",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "100 MICHIGAN ST NE # MC845",
            "city": "GRAND RAPIDS",
            "state": "MI",
            "postal_code": "495032560"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1202 W OAK ST",
            "city": "GREENVILLE",
            "state": "MI",
            "postal_code": "488382155",
            "telephone_number": "616-754-2944"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WITKOWSKI",
        "first_name": "MARCI",
        "middle_name": "FRANCES",
        "credential": "LMSW",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2016-08-05",
        "last_updated": "2026-01-26",
        "certification_date": "2026-01-26",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1041C0700X",
            "taxonomy_group": "",
            "desc": "Social Worker, Clinical",
            "state": "MI",
            "license": "6801100020",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "MARCI",
            "last_name": "GLEASON",
            "middle_name": "FRANCES",
            "credential": "LMSW",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

• Craig W White, D.O.
• Monica Jean Wilds, MSOT
• Trudy Willadson, LMFT
• Jonathan Patrick Windeler, MD
• Jeana Rae Wisinski
• Alexander James Witte, MD
• Theodore J Wohlford, LPC, LMFT, NCC
• Cheryl Rager Woodward, PT
• Sarah Elizabeth Workman, LLPC
• Brianne Marie Wright, CNM

• Clinical Social Worker in Greenville, MI
• Providers in Greenville, MI by specialty
• Clinical Social Worker in Michigan

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 26, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.