Joseph Lazar, MD
NPI 1881784239 · Gastroenterology Physician · Syosset, NY
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joseph Lazar, MD is a Gastroenterology Physician provider in Syosset, NY (NPI 1881784239).
Provider details
- NPI number
- 1881784239
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 141697 (NY)
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
- 2006-10-14
- Last updated
- 2011-03-28
Frequently asked questions
- What is Joseph Lazar's NPI number?
- Joseph Lazar's National Provider Identifier (NPI) is 1881784239, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joseph Lazar's specialty?
- Joseph Lazar is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Joseph Lazar located?
- Joseph Lazar's practice location on file with NPPES is 175 Jericho Tpke, Syosset, NY 11791.
- What is Joseph Lazar's phone number?
- The practice phone number listed in the NPPES registry for Joseph Lazar is (516) 496-1060.
- Does Joseph Lazar accept Medicare?
- Joseph Lazar is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Joseph Lazar's NPI active?
- Yes — Joseph Lazar's NPI (1881784239) is active in the NPPES registry as of the last update on 2011-03-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.