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

Margaret Kathleen Halloran, NP

Individual provider Women's Health Nurse Practitioner · NPI 1497220131

Margaret Kathleen Halloran, NP is a Nurse Practitioner in Ann Arbor, Michigan. Qualified in 2018, 8 years ago. Practices with Regents of the University of Michigan, a 3,271-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Michigan and Pennsylvania.

Years since qualifying
8
Licensed in
MI, PA
In the registry since
2018
Specialties on file
2
What do these letters mean?
NP — Nurse Practitioner
An advanced practice nurse who can diagnose, treat and in most states prescribe.

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Practice location Address checks out

1500 E Medical Center Dr
Ann Arbor, MI 48109-5000
Phone: (734) 936-4000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 1501 Lansdowne Ave Ste 208, Darby, PA 19023-1333 — (610) 237-7922

Specialties & licences

Nurse Practitioner (primary) Taxonomy 363L00000X · Licence 4704336944 (MI)
Women's Health Nurse Practitioner Taxonomy 363LW0102X · Licence SP019394 (PA)

Record details

NPI number1497220131
Entity typeIndividual (Type 1)
GenderFemale
Credentials NP
Sole proprietorNo
NPI enumeratedOctober 9, 2018
Last updated in NPPESFebruary 25, 2025
Certification dateFebruary 25, 2025

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
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

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