Mary Ghrayeb Haddad, M.D.
NPI 1598558900 · Student in an Organized Health Care Education/Training Program · Boston, MA
Mary Ghrayeb Haddad, M.D. is a Student in an Organized Health Care Education/Training Program provider in Boston, MA (NPI 1598558900).
Provider details
- NPI number
- 1598558900
- Entity type
- Individual
- Primary specialty
- Student in an Organized Health Care Education/Training ProgramStudent, Health Care
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
Specialties & taxonomies
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
1 yr in NPPES registry
- Profile completeness38% of score
83% 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
- 2025-05-28
- Last updated
- 2026-02-17
- Certified
- 2026-02-17
Frequently asked questions
- What is Mary Ghrayeb Haddad's NPI number?
- Mary Ghrayeb Haddad's National Provider Identifier (NPI) is 1598558900, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Ghrayeb Haddad's specialty?
- Mary Ghrayeb Haddad is listed in the NPPES registry with a primary specialty of Student in an Organized Health Care Education/Training Program (Student, Health Care).
- Where is Mary Ghrayeb Haddad located?
- Mary Ghrayeb Haddad's practice location on file with NPPES is 300 Longwood Ave Bch 3129 Boston Childrens Hospital, Boston, MA 02115.
- What is Mary Ghrayeb Haddad's phone number?
- The practice phone number listed in the NPPES registry for Mary Ghrayeb Haddad is (617) 355-5209.
- Is Mary Ghrayeb Haddad's NPI active?
- Yes — Mary Ghrayeb Haddad's NPI (1598558900) is active in the NPPES registry as of the last update on 2026-02-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.