Mari Grief, MD
NPI 1821666058 · Pediatrics Physician · Honolulu, HI
Enrolled with Medicare as Order and Referring Only - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mari Grief, MD is a Pediatrics Physician provider in Honolulu, HI (NPI 1821666058).
Provider details
- NPI number
- 1821666058
- Entity type
- Individual
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- MDR-8074 (HI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
5 yrs 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
- 2021-06-14
- Last updated
- 2021-06-14
- Certified
- 2021-06-14
Frequently asked questions
- What is Mari Grief's NPI number?
- Mari Grief's National Provider Identifier (NPI) is 1821666058, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mari Grief's specialty?
- Mari Grief is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is Mari Grief located?
- Mari Grief's practice location on file with NPPES is 1319 Punahou St # 741, Honolulu, HI 96826-1080.
- What is Mari Grief's phone number?
- The practice phone number listed in the NPPES registry for Mari Grief is (808) 369-1234.
- Does Mari Grief accept Medicare?
- Mari Grief is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mari Grief's NPI active?
- Yes — Mari Grief's NPI (1821666058) is active in the NPPES registry as of the last update on 2021-06-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.