Mary Jane O'Brien, RNP
NPI 1831138320 · Pediatric Nurse Practitioner · East Boston, MA
Mary Jane O'Brien, RNP is a Pediatric Nurse Practitioner provider in East Boston, MA (NPI 1831138320).
Provider details
- NPI number
- 1831138320
- Entity type
- Individual
- Primary specialty
- Pediatric Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- RNP
- Sex
- Female
- License
- 128206 (MA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES 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
- 2006-06-06
- Last updated
- 2007-07-08
Frequently asked questions
- What is Mary Jane O'Brien's NPI number?
- Mary Jane O'Brien's National Provider Identifier (NPI) is 1831138320, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Jane O'Brien's specialty?
- Mary Jane O'Brien is listed in the NPPES registry with a primary specialty of Pediatric Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mary Jane O'Brien located?
- Mary Jane O'Brien's practice location on file with NPPES is 10 Gove St, East Boston, MA 02128-1920.
- What is Mary Jane O'Brien's phone number?
- The practice phone number listed in the NPPES registry for Mary Jane O'Brien is (617) 569-5800.
- Is Mary Jane O'Brien's NPI active?
- Yes — Mary Jane O'Brien's NPI (1831138320) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.