Mary Maciejewski
NPI 1831235621 · Pediatric Nurse Practitioner · Buffalo, NY
Mary Maciejewski is a Pediatric Nurse Practitioner provider in Buffalo, NY (NPI 1831235621).
Provider details
- NPI number
- 1831235621
- Entity type
- Individual
- Primary specialty
- Pediatric Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 380958 (NY)
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
- 2007-01-29
- Last updated
- 2007-07-08
Frequently asked questions
- What is Mary Maciejewski's NPI number?
- Mary Maciejewski's National Provider Identifier (NPI) is 1831235621, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Maciejewski's specialty?
- Mary Maciejewski is listed in the NPPES registry with a primary specialty of Pediatric Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mary Maciejewski located?
- Mary Maciejewski's practice location on file with NPPES is 219 Bryant St, Buffalo, NY 14222-2006.
- What is Mary Maciejewski's phone number?
- The practice phone number listed in the NPPES registry for Mary Maciejewski is (716) 878-7000.
- Is Mary Maciejewski's NPI active?
- Yes — Mary Maciejewski's NPI (1831235621) 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.