National Provider Identifier Database

MARY B DEEGAN HAFF, D.O. – NPI #1659565919
Adolescent Medicine

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.


Contact Information

MARY B DEEGAN HAFF, D.O.
259 1ST ST
MINEOLA, NY11501-3957
Phone: 516-663-2829
Fax:
Website:
Specialty Taxonomy Code
* Adolescent Medicine 2080A0000X
Pediatric Emergency Medicine 207PP0204X

* Indicates primary specialty

NPI Profile & details for MARY B DEEGAN HAFF

NPI Number 1659565919
Credentials D.O. (Doctor of Osteopathic)
Entity Individual
Enumeration date 08/30/2007
Last updated 04/28/2026 - About a month ago
Sole proprietor1 No
Identifiers
  • NY License #: 245621
  • NY License #: 245621-1
Hospital affiliation n/a

1 A sole proprietor/sole proprietorship is an individual, and as such, is eligible for a single NPI number. The sole proprietor must apply for the NPI number using his or her own Social Security Number (SSN), not an Employer Identification Number (EIN) even if he/she has an EIN.

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