Mary Martin-O'Brien, APRN
NPI 1407880487 · Adult Health Clinical Nurse Specialist · Newington, CT
Mary Martin-O'Brien, APRN is a Adult Health Clinical Nurse Specialist provider in Newington, CT (NPI 1407880487).
Provider details
- NPI number
- 1407880487
- Entity type
- Individual
- Primary specialty
- Adult Health Clinical Nurse SpecialistPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- APRN
- Sex
- Female
- Sole proprietor
- No
- License
- 001456 (CT)
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
19 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
- 2006-07-10
- Last updated
- 2007-07-08
Frequently asked questions
- What is Mary Martin-O'Brien's NPI number?
- Mary Martin-O'Brien's National Provider Identifier (NPI) is 1407880487, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Martin-O'Brien's specialty?
- Mary Martin-O'Brien is listed in the NPPES registry with a primary specialty of Adult Health Clinical Nurse Specialist (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mary Martin-O'Brien located?
- Mary Martin-O'Brien's practice location on file with NPPES is 555 Willard Ave, Newington, CT 06111-2631.
- What is Mary Martin-O'Brien's phone number?
- The practice phone number listed in the NPPES registry for Mary Martin-O'Brien is (860) 666-6951.
- Is Mary Martin-O'Brien's NPI active?
- Yes — Mary Martin-O'Brien's NPI (1407880487) 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.