NPPES file of Aug 9, 2026

John Mathieson, ACSW

Clinical Social Worker · Battle Creek, MI

John Mathieson, ACSW is a clinical social worker with a practice address in Battle Creek, Michigan, and NPI 1275562860, issued on Jul 3, 2006. Check the license (Michigan 6801015676, 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
1275562860
Name
John Mathieson
Credential
ACSW
Primary taxonomy
Clinical Social Worker 1041C0700X
License number
6801015676 MI
Self-reported in NPPES; status is on the state search
Practice location
5500 Armstrong RD, Battle Creek, MI 49015
Phone
(269) 966-5600
Enumerated
Jul 3, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(269) 966-5585
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 5500 Armstrong RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Christine Anguras, D.O.Internal Medicine Physician1558473843
  2. William Arneson, MS, RPHPharmacist1316047806
  3. Sandra Badt, LMSWClinical Social Worker1831122787
  4. Barbara Baggerly, RN, MSN, GNPGerontology Nurse Practitioner1316966377
  5. Govardhana Bandlamudi, MDGeriatric Psychiatry Physician1316952773
  6. Marian Beardsley-Gibbs, LMSWClinical Social Worker1255368569

Verify John Mathieson 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 6801015676
    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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John Mathieson among 17,644 clinical social worker records in Michigan

John Mathieson, ACSW 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 not. Its NPI, issued in 2006, is newer than under 1% of them.

  • NPI issued2006 · under 1% of these records are older, 91% newer
  • In a Medicare fileNo · 14% of these records are
  • In the CMS Doctors and Clinicians fileNo · 20% of these records are
  • Record last updated2007 · 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).

272 clinical social worker records list a practice address in Battle Creek

They are 272 of the 2,117 NPPES records with a practice address in Battle Creek, and 17,644 clinical social worker records in Michigan. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 clinical social worker records with the nearest ZIP codes

  1. Sandra Badt, LMSWBattle Creek, MI 490151831122787
  2. Marian Beardsley-Gibbs, LMSWBattle Creek, MI 490151255368569
  3. Sherri Deloof, MSWBattle Creek, MI 490151619905932
  4. Joseph Grueter, LLMSWBattle Creek, MI 490151417991779
  5. Larry Grueter, LMSWBattle Creek, MI 490151720096522
  6. Thomas Hicks, ACSWBattle Creek, MI 490151295763415
  7. John Mathew, MSWBattle Creek, MI 490151285645101
  8. Michelle Oursler, LMSWBattle Creek, MI 490151992756142

Common questions

What is John Mathieson, ACSW's NPI number?

John Mathieson, ACSW's National Provider Identifier (NPI) is 1275562860, issued on Jul 3, 2006. An NPI identifies a provider in billing; it is not a license.

Where is John Mathieson, ACSW located?

The NPPES record lists a practice address at 5500 Armstrong RD, Battle Creek, MI, 49015. Phone: (269) 966-5600. Providers update this record themselves, so call before visiting.

How can I verify John Mathieson, ACSW's license?

NPPES lists Michigan license number 6801015676, 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.