MICHAEL MAGUIRE
NPI 1104416122
Registered Nurse in Boston, MA
About Michael Maguire NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MICHAEL MAGUIRE (NPI 1104416122) is an individual registered nurse in Boston, Massachusetts, licensed in Massachusetts (RN2302470) and active in the NPI registry since January 2021. He is enrolled in Medicare PECOS, is affiliated with New England Baptist Hospital, and is a graduate of Other (2022).
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Michael Maguire is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show Michael Maguire reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Boston, MA 02215
- Reassigned Medicare billing, Massachusetts enrollment
- Also billed through NPI 1245773308 (Massachusetts), NPI 1336781301 (Massachusetts)
- 1,006 clinicians in this Medicare group
Boston, MA 02115
- Reassigned Medicare billing, Massachusetts enrollment
- 4,574 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 4
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
New England Baptist Hospital
Acute Care Hospitals · Boston, MABrigham And Women's Hospital
Acute Care Hospitals · Boston, MAFaulkner Hospital-Brigham And Women's
Acute Care Hospitals · Boston, MAOther Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BOSTON, MA 02114
BOSTON, MA 02114
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Michael Maguire's NPI number?
The NPI number for Michael Maguire is 1104416122. It was assigned to this individual provider in the NPPES registry on January 23, 2021.
Where is Michael Maguire located?
Michael Maguire practices at 243 Charles St, Boston, MA 02114. The listed phone number is (617) 523-7900.
What is Michael Maguire's specialty?
The primary specialty registered for this NPI is Registered Nurse with taxonomy code 163W00000X.
Is Michael Maguire enrolled in Medicare?
Yes. Michael Maguire is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Michael Maguire's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Michael Maguire reassigns Medicare benefits to 2 organizations: Associated Physicians Of Harvard Medical Faculty Physicians At Beth Is (Boston, MA) and Brigham & Womens Physicians Organization Inc (Boston, MA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Michael Maguire's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Michael Maguire affiliated with any hospitals?
According to CMS data, Michael Maguire is affiliated with New England Baptist Hospital, Brigham And Women's Hospital and Faulkner Hospital-Brigham And Women's.
When was this NPI record last updated?
The NPPES record for Michael Maguire was last updated on January 23, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Michael Maguire · NPI 1104416122
Registered Nurse provider in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since January 23, 2021.
## Identity
- **NPI:** 1104416122 (Entity type: Individual)
- **Enumerated:** January 23, 2021
- **Primary specialty:** Registered Nurse · taxonomy 163W00000X
- **State license:** RN2302470 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 243 CHARLES ST, Boston, MA 02114-3002
- **Phone:** (617) 523-7900
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Associated Physicians Of Harvard Medical Faculty Physicians At Beth Is (NPI 1952358533, Boston, MA); Brigham & Womens Physicians Organization Inc (NPI 1033535497, Boston, MA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2022
## Record status
- **NPPES last updated:** January 23, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1104416122) · Data from the CMS NPPES public registry.