Mary K. Lewis, LMSW
Social Worker · Chelsea, MI
Mary K. Lewis, LMSW is a social worker with a practice address in Chelsea, Michigan, and NPI 1306019732, issued on Apr 7, 2008. Check the license (Michigan 6801073041, as entered in NPPES) with the Michigan board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mary K. Lewis
- Credential
- LMSW
- Primary taxonomy
- Social Worker 104100000X
- License number
- 6801073041 MI
Self-reported in NPPES; status is on the state search - Practice location
- 350 North Main Street, Chelsea, MI 48118
- Phone
- (734) 593-5251
- Enumerated
- Apr 7, 2008
- Record last updated
- Jul 30, 2024
- Fax
- (734) 593-5255
- Medicare enrollment
- Enrolled (PECOS I20210324002782); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest social worker records → All 9,114 in Michigan → Look up another NPI →
Also registered at 350 North Main Street
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Alexandria Betke, LMSWSocial Worker1588119960
- Elizabeth Block, MDPsychiatry Physician1457693855
- Stuart Chalin, LMSWSocial Worker1285778126
- Julie Chappel, LMSWSocial Worker1831156405
- Amanda Connon, LLPPsychologist1144505744
- Kelly Frederick-Castro, LMSWSocial Worker1871630681
Verify Mary K. Lewis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Michigan board licenses this profession
Search for license 6801073041Check 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
- Iha Health Services CorporationPontiac, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mary K. Lewis among 9,114 social worker records in Michigan
Mary K. Lewis, LMSW is one of 9,114 social worker records with a practice address in Michigan. 7% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 13% of them.
- NPI issued2008 · 13% of these records are older, 84% newer
- In a Medicare fileYes · 7% of these records are
- In the CMS Doctors and Clinicians fileYes · 10% of these records are
- Graduated1991 · median 2012 among the 914 with a school on file
- Record last updated2024 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 104100000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
20 social worker records list a practice address in Chelsea
They are 20 of the 500 NPPES records with a practice address in Chelsea, and 9,114 social worker records in Michigan.
All 9,114 in Michigan → Every provider in Chelsea → Social Worker nationwide →
The 8 social worker records with the nearest ZIP codes
- Leslie Barroso, LCSWChelsea, MI 481181821590316
- Alexandria Betke, LMSWChelsea, MI 481181588119960
- Stuart Chalin, LMSWChelsea, MI 481181285778126
- Julie Chappel, LMSWChelsea, MI 481181831156405
- Marian Cohen, MSWChelsea, MI 481181942357330
- Kelly Frederick-Castro, LMSWChelsea, MI 481181871630681
- Edward Humenay, MSWChelsea, MI 481181649336314
- Margaret Kantola, LMSWChelsea, MI 481181598242463
Common questions
What is Mary K. Lewis, LMSW's NPI number?
Mary K. Lewis, LMSW's National Provider Identifier (NPI) is 1306019732, issued on Apr 7, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Mary K. Lewis, LMSW located?
The NPPES record lists a practice address at 350 North Main Street, Chelsea, MI, 48118. Phone: (734) 593-5251. Providers update this record themselves, so call before visiting.
How can I verify Mary K. Lewis, LMSW's license?
NPPES lists Michigan license number 6801073041, 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.