Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Mary Brenna McMahon, LMSW

Individual provider Social Worker · NPI 1558828897

Mary Brenna McMahon, LMSW is a Clinical Social Worker in Ann Arbor, Michigan. Qualified in 2018, 8 years ago. Practices with Regents of the University of Michigan, a 3,271-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Michigan.

Years since qualifying
8
Licensed in
MI
In the registry since
2019
Specialties on file
2
What do these letters mean?
LMSW — Licensed Master Social Worker
A master's-level social worker, usually practising under supervision.

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Practice location Address checks out

4260 Plymouth Rd
Ann Arbor, MI 48109-2700
Phone: (734) 764-6831
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Social Worker (primary) Taxonomy 104100000X · Licence 6801109270 (MI)
Social Worker Taxonomy 104100000X · Licence 6801103757 (MI)

Record details

NPI number1558828897
Entity typeIndividual (Type 1)
GenderFemale
Credentials LMSW
Sole proprietorNo
NPI enumeratedFebruary 22, 2019
Last updated in NPPESOctober 1, 2021
Certification dateJuly 28, 2021

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCLINICAL SOCIAL WORKER
Medical schoolOTHER
Graduated 2018 (8 years in practice)
Group practice Regents Of The University Of Michigan — 3271 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations3 on file with Medicare

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