NPPES file of Aug 9, 2026

Courtney Mahaffy

Social Worker · Sandusky, MI

Courtney Mahaffy is a social worker with a practice address in Sandusky, Michigan, and NPI 1013491000, issued on Sep 17, 2018. Check the license (Michigan 6801103120, 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
1013491000
Name
Courtney Mahaffy
Primary taxonomy
Social Worker 104100000X
License number
6801103120 MI
Self-reported in NPPES; status is on the state search
Practice location
227 E Sanilac RD, Sandusky, MI 48471
Phone
(810) 648-0330
Enumerated
Sep 17, 2018
Record last updated
Sep 17, 2018 (not updated in 8 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20210324000988); 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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Also registered at 227 E Sanilac RD

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

  1. Brian Adame, LPNLicensed Practical Nurse1851813828
  2. Georgia AebelRegistered Nurse1700532371
  3. Catherine AlbertOther Technician1225588064
  4. Hannah AlexanderSocial Worker1306560057
  5. Taylor BallSocial Worker1669360368
  6. Megan BealsSocial Worker1023872694

Verify Courtney Mahaffy 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 6801103120
    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. Sanilac County Community Mental Health AuthoritySandusky, MI

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

Courtney Mahaffy among 9,114 social worker records in Michigan

Courtney Mahaffy 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 2018, is newer than 52% of them.

  • NPI issued2018 · 52% of these records are older, 42% newer
  • In a Medicare fileYes · 7% of these records are
  • In the CMS Doctors and Clinicians fileYes · 10% of these records are
  • Graduated2018 · median 2012 among the 914 with a school on file
  • Record last updated2018 · 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).

72 social worker records list a practice address in Sandusky

They are 72 of the 400 NPPES records with a practice address in Sandusky, and 9,114 social worker records in Michigan.

The 8 social worker records with the nearest ZIP codes

  1. James Bartley, BA, LBSWSandusky, MI 484711982705349
  2. Janine Beatty, MA, LBSWSandusky, MI 484711295827038
  3. Patricia Cole, LBSW, QMRP, QMHPSandusky, MI 484711003906249
  4. Jack Dutton, MA, LPC, LBSWSandusky, MI 484711285735357
  5. Victoria Frisbey, BS LBSW QMRPSandusky, MI 484711750476628
  6. Laura Gotham, ACSWSandusky, MI 484711497844013
  7. Thomas Kraemer, LBSW/QMRPSandusky, MI 484711477643195
  8. Michele Livingston, L.B.S.W.Sandusky, MI 484711376632588

Common questions

What is Courtney Mahaffy's NPI number?

Courtney Mahaffy's National Provider Identifier (NPI) is 1013491000, issued on Sep 17, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Courtney Mahaffy located?

The NPPES record lists a practice address at 227 E Sanilac RD, Sandusky, MI, 48471. Phone: (810) 648-0330. Providers update this record themselves, so call before visiting.

How can I verify Courtney Mahaffy's license?

NPPES lists Michigan license number 6801103120, 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.