Hannah Grierson
NPI 1346805611 · Pediatrics Physician · New York, NY
Enrolled with Medicare as Order and Referring Only - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Hannah Grierson is a Pediatrics Physician provider in New York, NY (NPI 1346805611).
Provider details
- NPI number
- 1346805611
- Entity type
- Individual
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Sex
- Female
- Sole proprietor
- Yes
- License
- 336530 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
7 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
- 2019-05-02
- Last updated
- 2026-03-24
- Certified
- 2026-03-24
Frequently asked questions
- What is Hannah Grierson's NPI number?
- Hannah Grierson's National Provider Identifier (NPI) is 1346805611, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Hannah Grierson's specialty?
- Hannah Grierson is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is Hannah Grierson located?
- Hannah Grierson's practice location on file with NPPES is 1 Gustave L Levy Pl Fl 12, New York, NY 10029-6574.
- What is Hannah Grierson's phone number?
- The practice phone number listed in the NPPES registry for Hannah Grierson is (212) 241-6500.
- Does Hannah Grierson accept Medicare?
- Hannah Grierson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Hannah Grierson's NPI active?
- Yes — Hannah Grierson's NPI (1346805611) is active in the NPPES registry as of the last update on 2026-03-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.