Joseph Lazar
NPI 1972845808 · Pediatrics Physician · Boston, MA
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joseph Lazar is a Pediatrics Physician provider in Boston, MA (NPI 1972845808).
Provider details
- NPI number
- 1972845808
- Entity type
- Individual
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- Yes
- License
- 265731 (MA)
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
13 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
- 2013-03-18
- Last updated
- 2016-04-23
Frequently asked questions
- What is Joseph Lazar's NPI number?
- Joseph Lazar's National Provider Identifier (NPI) is 1972845808, 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 Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is Joseph Lazar located?
- Joseph Lazar's practice location on file with NPPES is 300 Longwood Ave, Boston, MA 02115-5724.
- What is Joseph Lazar's phone number?
- The practice phone number listed in the NPPES registry for Joseph Lazar is (617) 414-7144.
- 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 (1972845808) is active in the NPPES registry as of the last update on 2016-04-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.