Mathew Kosik, LMSW, CAADC
Clinical Social Worker · Grand Rapids, MI
Mathew Kosik, LMSW, CAADC is a clinical social worker with a practice address in Grand Rapids, Michigan, and NPI 1336428879, issued on Aug 16, 2011. Check the license (Michigan 6801094209, as entered in NPPES) with the Michigan board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mathew Kosik
- Credential
- LMSW, CAADC
- Primary taxonomy
- Clinical Social Worker 1041C0700X
- License number
- 6801094209 MI
Self-reported in NPPES; status is on the state search - Practice location
- 300 68TH St SE, Grand Rapids, MI 49548
- Phone
- (616) 559-5896
- Enumerated
- Aug 16, 2011
- Record last updated
- Aug 20, 2025
- Medicare enrollment
- Enrolled (PECOS I20180207001555); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest clinical social worker records → All 17,644 in Michigan → Look up another NPI →
Also registered at 300 68TH St SE
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Kimberly AbedClinical Social Worker1568864775
- Eric Achtyes, MDPsychiatry Physician1780665976
- Matthew AdamsBehavior Analyst1770290561
- Andrae Agnew, LMSWClinical Social Worker1306481023
- Kyle AhonenChild & Adolescent Psychiatry Physician1326579426
Verify Mathew Kosik in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Michigan board licenses this profession
Search for license 6801094209Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
One hospital affiliation
- Pine Rest Christian Mental Health ServicesSpring Lake, MI · Psychiatric
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov).
Mathew Kosik among 17,644 clinical social worker records in Michigan
Mathew Kosik, LMSW, CAADC 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 2011, is newer than 26% of them.
- NPI issued2011 · 26% of these records are older, 71% newer
- In a Medicare fileYes · 14% of these records are
- In the CMS Doctors and Clinicians fileYes · 20% of these records are
- Graduated2012 · 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).
1,604 clinical social worker records list a practice address in Grand Rapids
They are 1,604 of the 18,005 NPPES records with a practice address in Grand Rapids, and 17,644 clinical social worker records in Michigan.
All 17,644 in Michigan → Every provider in Grand Rapids → Clinical Social Worker nationwide →
The 8 clinical social worker records with the nearest ZIP codes
- Amanda Batenburg-Drake, LLMSWGrand Rapids, MI 495481558436287
- Lisa Borden, BSGrand Rapids, MI 495481356495196
- Mariah Deyoung, LMSWGrand Rapids, MI 495481447342019
- Christa Galer, LMSW, CAADC, CCSGrand Rapids, MI 495481548355985
- Barbara Gritter, LMSW, ACSWGrand Rapids, MI 495481508881806
- Jean Holthaus, LISW, LMSWGrand Rapids, MI 495481992733182
- Matthew Jachalke, LMSWGrand Rapids, MI 495481306833439
- Kimberly Jackson, LMSWGrand Rapids, MI 495481750492336
Common questions
What is Mathew Kosik, LMSW, CAADC's NPI number?
Mathew Kosik, LMSW, CAADC's National Provider Identifier (NPI) is 1336428879, issued on Aug 16, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Mathew Kosik, LMSW, CAADC located?
The NPPES record lists a practice address at 300 68TH St SE, Grand Rapids, MI, 49548. Phone: (616) 559-5896. Providers update this record themselves, so call before visiting.
How can I verify Mathew Kosik, LMSW, CAADC's license?
NPPES lists Michigan license number 6801094209, 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.