Stergios Zacharoulis, MD
NPI 1265934137 · Pediatric Hematology & Oncology Physician · London
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stergios Zacharoulis, MD is a Pediatric Hematology & Oncology Physician provider in London (NPI 1265934137).
Provider details
- NPI number
- 1265934137
- Entity type
- Individual
- Primary specialty
- Pediatric Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 292354 (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
8 yrs in NPPES registry
- Profile completeness38% of score
67% 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
- 2018-03-06
- Last updated
- 2018-03-06
Frequently asked questions
- What is Stergios Zacharoulis's NPI number?
- Stergios Zacharoulis's National Provider Identifier (NPI) is 1265934137, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stergios Zacharoulis's specialty?
- Stergios Zacharoulis is listed in the NPPES registry with a primary specialty of Pediatric Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Stergios Zacharoulis located?
- Stergios Zacharoulis's practice location on file with NPPES is 16 Hamlet Square, London, 21.
- What is Stergios Zacharoulis's phone number?
- The practice phone number listed in the NPPES registry for Stergios Zacharoulis is (004) 479-4987.
- Does Stergios Zacharoulis accept Medicare?
- Stergios Zacharoulis is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stergios Zacharoulis's NPI active?
- Yes — Stergios Zacharoulis's NPI (1265934137) is active in the NPPES registry as of the last update on 2018-03-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.