John Mascari, MD
Neonatal-Perinatal Medicine Physician · New York, NY
John Mascari, MD is a neonatal-perinatal medicine physician with a practice address in New York, New York, and NPI 1154828507, issued on Apr 11, 2018. Check the license (New York 337258, as entered in NPPES) on the NYS Education Department, Office of the Professions; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- John Mascari
- Credential
- MD
- Primary taxonomy
- Neonatal-Perinatal Medicine Physician 2080N0001X
- License number
- 337258 NY
Self-reported in NPPES; status is on the state search - Practice location
- 1283 York Ave, New York, NY 10065
- Phone
- (646) 697-6428
- Enumerated
- Apr 11, 2018
- Record last updated
- Mar 2, 2026
- Medicare enrollment
- Enrolled (PECOS I20260403000426); may accept Medicare assignment
- Medical or professional school
- Geisel School Of Medicine At Dartmouth, 2018
- Entity
- Type 1 · individual
8 nearest neonatal-perinatal medicine physician records → All 513 in New York → Look up another NPI →
Also registered at 1283 York Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Emily Ahn, MDNeonatal-Perinatal Medicine Physician1760918478
- Laura Andreadis, FNPFamily Nurse Practitioner1487215679
- Samantha Berberich, FNP-CFamily Nurse Practitioner1043047285
- Erika Brockhoff, MS, CGCGenetic Counselor (M.S.)1417516022
- Tracy Buechele, PAPhysician Assistant1013507136
- Michelle Cohen, M.D.Gastroenterology Physician1023252145
Verify John Mascari in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 337258Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
John Mascari among 513 neonatal-perinatal medicine physician records in New York
John Mascari, MD is one of 513 neonatal-perinatal medicine physician records with a practice address in New York. 19% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2018, is newer than 91% of them.
- NPI issued2018 · 91% of these records are older, 5% newer
- In a Medicare fileNo · 19% of these records are
- In the CMS Doctors and Clinicians fileYes · 7% of these records are
- Graduated2018 · median 2006 among the 34 with a school on file
- Record last updated2026 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2080N0001X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Neonatal-Perinatal Medicine Physician providers in New York
There are 513 neonatal-perinatal medicine physician records in New York. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 513 in New York → Every provider in New York → Neonatal-Perinatal Medicine Physician nationwide →
The 8 neonatal-perinatal medicine physician records with the nearest ZIP codes
- Alpa Basu, MDNew York, NY 100651558671321
- Lauren Blatt, M.D.New York, NY 100651073889093
- Rebecca Corwin, M.D.New York, NY 100651821364381
- Nina Debenedictis, MDNew York, NY 100651356873327
- Giselle Gayle Gozum, M.D.New York, NY 100651073047403
- Alan Groves, MBCHBNew York, NY 100651093148504
- Sherrie Hauft, MDNew York, NY 100651578581997
- Ericalyn Kasdorf, M.D.New York, NY 100651043477557
Common questions
What is John Mascari, MD's NPI number?
John Mascari, MD's National Provider Identifier (NPI) is 1154828507, issued on Apr 11, 2018. An NPI identifies a provider in billing; it is not a license.
Where is John Mascari, MD located?
The NPPES record lists a practice address at 1283 York Ave, New York, NY, 10065. Phone: (646) 697-6428. Providers update this record themselves, so call before visiting.
How can I verify John Mascari, MD's license?
NPPES lists New York license number 337258, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.