NPPES file of Aug 9, 2026

Mary Alice Biggerstaff, ACSW

Clinical Social Worker · Belmont, MI

Mary Alice Biggerstaff, ACSW is a clinical social worker with a practice address in Belmont, Michigan, and NPI 1548069792, issued on Mar 11, 2025. Check the license (Michigan 6801020800, as entered in NPPES) with the Michigan board that licenses this profession; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1548069792
Name
Mary Alice Biggerstaff
Credential
ACSW
Primary taxonomy
Clinical Social Worker 1041C0700X
License number
6801020800 MI
Self-reported in NPPES; status is on the state search
Practice location
2172 Konkle Dr NE, Belmont, MI 49306
Phone
(616) 364-4999
Enumerated
Mar 11, 2025
Record last updated
Mar 11, 2025
Medicare enrollment
Enrolled (PECOS I20250527003158); 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 Mary Alice Biggerstaff 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 6801020800
    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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Bills Medicare through one group practice

  1. Mental Health Specialty Group PADetroit, MI

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Mary Alice Biggerstaff among 17,644 clinical social worker records in Michigan

Mary Alice Biggerstaff, 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. Its NPI, issued in 2025, is newer than 93% of them.

  • NPI issued2025 · 93% of these records are older, 2% newer
  • In a Medicare fileYes · 14% of these records are
  • In the CMS Doctors and Clinicians fileYes · 20% of these records are
  • Graduated1983 · 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).

3 clinical social worker records list a practice address in Belmont

They are 3 of the 62 NPPES records with a practice address in Belmont, and 17,644 clinical social worker records in Michigan.

The 8 clinical social worker records with the nearest ZIP codes

  1. Susan Aalsburg, M.S.W.Belmont, MI 493061962688630
  2. Kathleen Hyink, L.M.S.W.Belmont, MI 493061427279132
  3. Catherine Beagle, LMSWBig Rapids, MI 493071073697835
  4. Dwight Bull, LMSWBig Rapids, MI 493071780801522
  5. Marcia Bull, MSWBig Rapids, MI 493071538386289
  6. Bonnie Cripe, PHD LMSW ACSW DAPABig Rapids, MI 493071821219882
  7. David Degraff, MSW, LMSWBig Rapids, MI 493071447331988
  8. Karen Dunham, LMSWBig Rapids, MI 493071689694267

Common questions

What is Mary Alice Biggerstaff, ACSW's NPI number?

Mary Alice Biggerstaff, ACSW's National Provider Identifier (NPI) is 1548069792, issued on Mar 11, 2025. An NPI identifies a provider in billing; it is not a license.

Where is Mary Alice Biggerstaff, ACSW located?

The NPPES record lists a practice address at 2172 Konkle Dr NE, Belmont, MI, 49306. Phone: (616) 364-4999. Providers update this record themselves, so call before visiting.

How can I verify Mary Alice Biggerstaff, ACSW's license?

NPPES lists Michigan license number 6801020800, 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.