John Mascari, MD
NPI 1154828507 · Neonatal-Perinatal Medicine Physician · New York, NY
John Mascari, MD is a Neonatal-Perinatal Medicine Physician provider in New York, NY (NPI 1154828507).
Provider details
- NPI number
- 1154828507
- Entity type
- Individual
- Primary specialty
- Neonatal-Perinatal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 337258 (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
8 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
- 2018-04-11
- Last updated
- 2026-03-02
- Certified
- 2026-03-02
Frequently asked questions
- What is John Mascari's NPI number?
- John Mascari's National Provider Identifier (NPI) is 1154828507, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Mascari's specialty?
- John Mascari is listed in the NPPES registry with a primary specialty of Neonatal-Perinatal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Mascari located?
- John Mascari's practice location on file with NPPES is 1283 York Ave, New York, NY 10065.
- What is John Mascari's phone number?
- The practice phone number listed in the NPPES registry for John Mascari is (646) 697-6428.
- Is John Mascari's NPI active?
- Yes — John Mascari's NPI (1154828507) is active in the NPPES registry as of the last update on 2026-03-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.