Individual Healthcare Provider
Mary B Deegan Haff, D.O.
Provider's NPPES record last updated: April 28, 2026
Overview
- Entity Type
- Individual Healthcare Provider
- NPI
- 1659565919
- Primary Specialty
- Pediatrics — Adolescent Medicine
- Practice Location
- Mineola, New York
- Sole Proprietor
- No
Federal Screening
NPISignal checked this NPI against federal exclusion sources. Results below are based on the NPI number itself — an identifier match, not a name match.
List of Excluded Individuals/Entities (LEIE)
HHS Office of Inspector General
No potential match was identified in NPISignal's indexed List of Excluded Individuals/Entities (LEIE) records as of 2026-09-10.
- Source data
- September 10, 2026
- Records indexed
- 84,001
- Screened
- Sep 20, 2026, 1:39 AM UTC
This reflects only the records NPISignal currently holds and the identity information supplied. It is not a verification of eligibility, licensure, or compliance. Verify decisions that matter against the authoritative source.
SAM.gov Exclusions
U.S. General Services Administration
SAM.gov Exclusions was not checked.
SAM.gov screening is not configured on this deployment. No SAM check has been performed.
- Screened
- Not checked
This is an NPI-based check only. NPISignal does not publish name-based exclusion matches on a provider profile. A shared or similar name is a lead that requires human review, not an identification, and this page is not the place to make one. Run a name-based screening below to see potential matches with the reasons for each.
This reflects only the records NPISignal currently holds and the identity information supplied. It is not a verification of eligibility, licensure, or compliance. Verify decisions that matter against the authoritative source.
Searches OIG LEIE and SAM.gov by name and reviews every potential match.
Specialties & Taxonomies
- Primary
Pediatrics
Adolescent Medicine
Allopathic & Osteopathic Physicians
A pediatrician who specializes in adolescent medicine is a multi-disciplinary healthcare specialist trained in the unique physical, psychological and social characteristics of adolescents, their healthcare problems and needs.
Taxonomy code 2080A0000X Emergency Medicine
Pediatric Emergency Medicine
Allopathic & Osteopathic Physicians
Pediatric Emergency Medicine is a clinical subspecialty that focuses on the care of the acutely ill or injured child in the setting of an emergency department.
Taxonomy code 207PP0204X
Provider-Reported License Information
- Pediatrics (New York)
- 245621-1
- Emergency Medicine (New York)
- 245621
Practice Locations
Practice Location
259 1st St
Mineola, New York 11501-3957
Phone: (516) 663-2829
Record Information
- Enumeration Date
- August 30, 2007
- Provider's NPPES Record Last Updated
- April 28, 2026
- Certification Date
- April 28, 2026
- NPISignal NPPES Dataset
- August 2026
See Something Wrong?
Incorrect provider information
Everything on this page comes directly from the NPPES data CMS publishes. NPISignal cannot edit a provider's record — only the provider or organization can, directly through NPPES.
Update a record through NPPESSomething wrong with this page?
If NPISignal is displaying this data incorrectly — a formatting error, a broken link, a mismatch with the source file — let us know.
Report a display issue