Margaret Mcmahon
NPI 1871446419 · Critical Care Medicine Registered Nurse · Jamaica Plain, MA
Margaret Mcmahon is a Critical Care Medicine Registered Nurse provider in Jamaica Plain, MA (NPI 1871446419).
Provider details
- NPI number
- 1871446419
- Entity type
- Individual
- Primary specialty
- Critical Care Medicine Registered NurseNursing Service Providers
- Sex
- Female
- Sole proprietor
- Yes
- License
- RN2385534 (MA)
Specialties & taxonomies
Nursing Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
Under 1 yr in registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2026-02-16
- Last updated
- 2026-02-16
- Certified
- 2026-02-15
Frequently asked questions
- What is Margaret Mcmahon's NPI number?
- Margaret Mcmahon's National Provider Identifier (NPI) is 1871446419, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret Mcmahon's specialty?
- Margaret Mcmahon is listed in the NPPES registry with a primary specialty of Critical Care Medicine Registered Nurse (Nursing Service Providers).
- Where is Margaret Mcmahon located?
- Margaret Mcmahon's practice location on file with NPPES is 35 Eldridge Rd Apt 103, Jamaica Plain, MA 02130-4648.
- What is Margaret Mcmahon's phone number?
- The practice phone number listed in the NPPES registry for Margaret Mcmahon is (301) 830-1408.
- Is Margaret Mcmahon's NPI active?
- Yes — Margaret Mcmahon's NPI (1871446419) is active in the NPPES registry as of the last update on 2026-02-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.