Margaret Grillo, MD
NPI 1285168401 · Pediatric Endocrinology Physician · New Hyde Park, NY
Enrolled with Medicare as Practitioner - Endocrinology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Margaret Grillo, MD is a Pediatric Endocrinology Physician provider in New Hyde Park, NY (NPI 1285168401).
Provider details
- NPI number
- 1285168401
- Entity type
- Individual
- Primary specialty
- Pediatric Endocrinology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 306437 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
9 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
- 2017-04-13
- Last updated
- 2023-12-12
- Certified
- 2023-12-12
Frequently asked questions
- What is Margaret Grillo's NPI number?
- Margaret Grillo's National Provider Identifier (NPI) is 1285168401, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret Grillo's specialty?
- Margaret Grillo is listed in the NPPES registry with a primary specialty of Pediatric Endocrinology Physician (Allopathic & Osteopathic Physicians).
- Where is Margaret Grillo located?
- Margaret Grillo's practice location on file with NPPES is 1991 Marcus Ave, New Hyde Park, NY 11042-2057.
- What is Margaret Grillo's phone number?
- The practice phone number listed in the NPPES registry for Margaret Grillo is (516) 472-3750.
- Does Margaret Grillo accept Medicare?
- Margaret Grillo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Margaret Grillo's NPI active?
- Yes — Margaret Grillo's NPI (1285168401) is active in the NPPES registry as of the last update on 2023-12-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.