Mary Brenna McMahon, LMSW
NPI 1558828897ActiveIndividual· Social Worker· Ann Arbor, MI
Social Worker (LMSW) with Regents of the University of Michigan, practicing in Ann Arbor, Michigan. Medicare paid $2,258 for services to 12 patients in 2024. Lists University of Michigan Health System as a hospital affiliation.
Overview
| NPI | 1558828897 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | LMSW |
| Sole proprietor | No |
| NPI issued | Feb 22, 2019 |
| Last updated in NPPES | Oct 1, 2021 |
| Certified by provider | Jul 28, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Social Worker Primary | 104100000X | 6801109270 | MI |
| Social Worker | 104100000X | 6801103757 | MI |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Clinical Social Worker (MI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 12 |
|---|---|
| Services billed | 52 across 4 procedure codes |
| Paid by Medicare | $2,258 |
Education and affiliations
| Graduation year | 2018 |
|---|---|
| Medicare specialty | Clinical Social Worker |
| Telehealth | Offers telehealth |
Medical group
- Regents of the University of MichiganAnn Arbor, MI · 3,346 clinicians
Hospital affiliation
- University of Michigan Health SystemAnn Arbor, MI
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