Mariel Hajjar, FNP-BC
NPI 1790508828 · Nurse Practitioner · Ann Arbor, MI
Mariel Hajjar, FNP-BC is a Nurse Practitioner provider in Ann Arbor, MI (NPI 1790508828).
Provider details
- NPI number
- 1790508828
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP-BC
- Sex
- Female
- Sole proprietor
- No
- License
- 4704364622 (MI)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
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
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
- 2024-11-06
- Last updated
- 2024-11-06
- Certified
- 2024-10-23
Frequently asked questions
- What is Mariel Hajjar's NPI number?
- Mariel Hajjar's National Provider Identifier (NPI) is 1790508828, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mariel Hajjar's specialty?
- Mariel Hajjar is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mariel Hajjar located?
- Mariel Hajjar's practice location on file with NPPES is 426 N Ingalls St, Ann Arbor, MI 48109-2003.
- What is Mariel Hajjar's phone number?
- The practice phone number listed in the NPPES registry for Mariel Hajjar is (734) 763-5985.
- Is Mariel Hajjar's NPI active?
- Yes — Mariel Hajjar's NPI (1790508828) is active in the NPPES registry as of the last update on 2024-11-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.