Grant Riew, MD
NPI 1053251009 · Student in an Organized Health Care Education/Training Program · Greenwich, CT
Grant Riew, MD is a Student in an Organized Health Care Education/Training Program provider in Greenwich, CT (NPI 1053251009).
Provider details
- NPI number
- 1053251009
- Entity type
- Individual
- Primary specialty
- Student in an Organized Health Care Education/Training ProgramStudent, Health Care
- Credential
- MD
- Sex
- Male
- 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
Under 1 yr in 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
- 2026-03-30
- Last updated
- 2026-03-30
- Certified
- 2026-03-30
Frequently asked questions
- What is Grant Riew's NPI number?
- Grant Riew's National Provider Identifier (NPI) is 1053251009, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Grant Riew's specialty?
- Grant Riew 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 Grant Riew located?
- Grant Riew's practice location on file with NPPES is 5 Perryridge Rd, Greenwich, CT 06830-4697.
- What is Grant Riew's phone number?
- The practice phone number listed in the NPPES registry for Grant Riew is (203) 863-3922.
- Is Grant Riew's NPI active?
- Yes — Grant Riew's NPI (1053251009) is active in the NPPES registry as of the last update on 2026-03-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.