Lazaros Xanthopoulos, MD
NPI 1255319604 · Pediatrics Physician · Leominster, MA
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lazaros Xanthopoulos, MD is a Pediatrics Physician provider in Leominster, MA (NPI 1255319604).
Provider details
- NPI number
- 1255319604
- Entity type
- Individual
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 17197 (NH)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
3 documented practice locations
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
Additional practice locations (2)
- 70 East StMethuen, MA 01844-4597Phone: (978) 687-0151
- 798 Central AveDover, NH 03820-2520Phone: (603) 740-2263
Registry dates
- Enumerated
- 2006-01-05
- Last updated
- 2023-10-27
- Certified
- 2023-10-27
Frequently asked questions
- What is Lazaros Xanthopoulos's NPI number?
- Lazaros Xanthopoulos's National Provider Identifier (NPI) is 1255319604, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lazaros Xanthopoulos's specialty?
- Lazaros Xanthopoulos is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is Lazaros Xanthopoulos located?
- Lazaros Xanthopoulos's practice location on file with NPPES is 60 Hospital Rd, Leominster, MA 01453-2205.
- What is Lazaros Xanthopoulos's phone number?
- The practice phone number listed in the NPPES registry for Lazaros Xanthopoulos is (978) 466-2000.
- Does Lazaros Xanthopoulos accept Medicare?
- Lazaros Xanthopoulos is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Lazaros Xanthopoulos's NPI active?
- Yes — Lazaros Xanthopoulos's NPI (1255319604) is active in the NPPES registry as of the last update on 2023-10-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.