NPPES file of Aug 9, 2026

Margaret Hartmann, LMSW

Social Worker · Kalkaska, MI

Margaret Hartmann, LMSW is a social worker with a practice address in Kalkaska, Michigan, and NPI 1831554740, issued on Dec 18, 2015. Check the license (Michigan 6801098412, as entered in NPPES) with the Michigan board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1831554740
Name
Margaret Hartmann
Credential
LMSW
Primary taxonomy
Social Worker 104100000X
License number
6801098412 MI
Self-reported in NPPES; status is on the state search
Practice location
2469 Beebe RD, Kalkaska, MI 49646
Phone
(231) 676-7913
Enumerated
Dec 18, 2015
Record last updated
Dec 13, 2022
Medicare enrollment
Enrolled (PECOS I20180716002457); 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 Margaret Hartmann 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 6801098412
    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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6 social worker records list a practice address in Kalkaska

They are 6 of the 130 NPPES records with a practice address in Kalkaska, and 9,114 social worker records in Michigan. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other social worker records in Michigan

  1. Holly A Carpenter, MSWHillsdale, MI1679377535
  2. Dana AbbamonteAuburn Hills, MI1184915159
  3. Yasmin AbbasRomulus, MI1174463046
  4. Madeeha AbbasiCanton, MI1801441878
  5. Claudia AbboudSouthfield, MI1275499329
  6. Mariam AbdallaSterling Heights, MI1619696051
  7. Intsar AbdulaheGrand Rapids, MI1275988925
  8. Josie Abdulbaki, LLMSWClinton Township, MI1912517590
  9. Nancy Abiade, LMSWMuskegon, MI1245860907
  10. James Abid, BSWWyoming, MI1245679745

Common questions

What is Margaret Hartmann, LMSW's NPI number?

Margaret Hartmann, LMSW's National Provider Identifier (NPI) is 1831554740, issued on Dec 18, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Margaret Hartmann, LMSW located?

The NPPES record lists a practice address at 2469 Beebe RD, Kalkaska, MI, 49646. Phone: (231) 676-7913. Providers update this record themselves, so call before visiting.

How can I verify Margaret Hartmann, LMSW's license?

NPPES lists Michigan license number 6801098412, 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. 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.