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STERGIOS ZACHAROULIS MD
NPI 1265934137
Pediatrics - Pediatric Hematology-Oncology in London, UK

Active since March 06, 2018PECOS Enrolled
16 HAMLET SQUARE, LONDON, UK 21(004) 479-4987 Get Directions Write a Review

NPPES record last updated: March 6, 2018. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Stergios Zacharoulis Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

STERGIOS ZACHAROULIS MD (NPI 1265934137) is an individual pediatric hematology-oncology provider in London, UK, licensed in New York (292354) and active in the NPI registry since March 2018. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1265934137
Entity TypeIndividualMale
Primary Taxonomy2080P0207X
Provider Legal NameSTERGIOS ZACHAROULISCredential: MD
Location Address16 HAMLET SQUARELondon, UK 21
Mailing Address16 Hamlet SquareLondon, UK 21
Phone(004) 479-4987
Sole ProprietorYes
Enumeration DateMarch 6, 2018
✔ NPI 1265934137 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatrics · Pediatric Hematology-OncologyAllopathic & Osteopathic Physicians
Taxonomy Code2080P0207X
License✔ Licensed in NY · 292354
Definition
A pediatrician trained in the combination of pediatrics, hematology and oncology to recognize and manage pediatric blood disorders and cancerous diseases.
16 HAMLET SQUARE, London, UK 21
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Stergios Zacharoulis Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Stergios Zacharoulis reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Trustees Of Columbia University In The City Of New York
3,458 mi
Surgery
622 W 168TH ST
New York, NY 10032
  • Reassigned Medicare billing, New York enrollment
  • 3,922 clinicians in this Medicare group
NPI 1508266347 (646) 317-7111

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Stergios Zacharoulis's NPI number?

The NPI number for Stergios Zacharoulis is 1265934137. It was assigned to this individual provider in the NPPES registry on March 6, 2018.

Where is Stergios Zacharoulis located?

Stergios Zacharoulis practices at 16 Hamlet Square, London, UK 21. The listed phone number is (004) 479-4987.

What is Stergios Zacharoulis's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Hematology-Oncology, with taxonomy code 2080P0207X.

Is Stergios Zacharoulis enrolled in Medicare?

Yes. Stergios Zacharoulis is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Stergios Zacharoulis's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Stergios Zacharoulis reassigns Medicare benefits to Trustees Of Columbia University In The City Of New York (New York, NY). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Stergios Zacharoulis's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Stergios Zacharoulis was last updated on March 6, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.