Brian Nessim, M.D.
NPI 1588740872 · Pediatrics Physician · New York, NY
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Brian Nessim, M.D. is a Pediatrics Physician provider in New York, NY (NPI 1588740872).
Provider details
- NPI number
- 1588740872
- Entity type
- Individual
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- G075927 (CA)
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
19 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
- 2006-10-28
- Last updated
- 2016-12-06
Frequently asked questions
- What is Brian Nessim's NPI number?
- Brian Nessim's National Provider Identifier (NPI) is 1588740872, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Brian Nessim's specialty?
- Brian Nessim is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is Brian Nessim located?
- Brian Nessim's practice location on file with NPPES is 250 E 77th St Apt 1c, New York, NY 10021-2198.
- What is Brian Nessim's phone number?
- The practice phone number listed in the NPPES registry for Brian Nessim is (305) 992-1119.
- Does Brian Nessim accept Medicare?
- Brian Nessim is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Brian Nessim's NPI active?
- Yes — Brian Nessim's NPI (1588740872) is active in the NPPES registry as of the last update on 2016-12-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.