IndividualActive
Gregory Slonim
NPI 1336026897 · Registered Nurse · Brooklyn, NY
Gregory Slonim is a Registered Nurse provider in Brooklyn, NY (NPI 1336026897).
Provider details
- NPI number
- 1336026897
- Entity type
- Individual
- Primary specialty
- Registered NurseNursing Service Providers
- Sex
- Male
- Sole proprietor
- Yes
- License
- 823079 (NY)
Specialties & taxonomies
Nursing Service Providers
Nursing Service Providers
Profile Score
Established profile(54/100 index)
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
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
1358 56th St
Brooklyn, NY 11219-4616
Phone: (718) 851-7100
Street-level locationGet directions
Mailing address
1358 56th St
Brooklyn, NY 11219-4616
Registry dates
- Enumerated
- 2025-08-18
- Last updated
- 2025-08-18
- Certified
- 2025-08-18
Frequently asked questions
- What is Gregory Slonim's NPI number?
- Gregory Slonim's National Provider Identifier (NPI) is 1336026897, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Slonim's specialty?
- Gregory Slonim is listed in the NPPES registry with a primary specialty of Registered Nurse (Nursing Service Providers).
- Where is Gregory Slonim located?
- Gregory Slonim's practice location on file with NPPES is 1358 56th St, Brooklyn, NY 11219-4616.
- What is Gregory Slonim's phone number?
- The practice phone number listed in the NPPES registry for Gregory Slonim is (718) 851-7100.
- Is Gregory Slonim's NPI active?
- Yes — Gregory Slonim's NPI (1336026897) is active in the NPPES registry as of the last update on 2025-08-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.