Marisa Armstrong, NP
NPI 1013809664 · Pediatric Nurse Practitioner · Stony Brook, NY
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marisa Armstrong, NP is a Pediatric Nurse Practitioner provider in Stony Brook, NY (NPI 1013809664).
Provider details
- NPI number
- 1013809664
- Entity type
- Individual
- Primary specialty
- Pediatric Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Female
- Sole proprietor
- No
- License
- 383705 (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
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
- 2025-07-17
- Last updated
- 2025-10-09
- Certified
- 2025-10-09
Frequently asked questions
- What is Marisa Armstrong's NPI number?
- Marisa Armstrong's National Provider Identifier (NPI) is 1013809664, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marisa Armstrong's specialty?
- Marisa Armstrong is listed in the NPPES registry with a primary specialty of Pediatric Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Marisa Armstrong located?
- Marisa Armstrong's practice location on file with NPPES is 101 Nicolls Rd, Stony Brook, NY 11794-0001.
- What is Marisa Armstrong's phone number?
- The practice phone number listed in the NPPES registry for Marisa Armstrong is (631) 689-8333.
- Does Marisa Armstrong accept Medicare?
- Marisa Armstrong is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marisa Armstrong's NPI active?
- Yes — Marisa Armstrong's NPI (1013809664) is active in the NPPES registry as of the last update on 2025-10-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.