DR. NIKOLAOS A ALEXANDROU MD
NPI 1902944226
Emergency Medicine in Brooklyn, NY
About Dr. Nikolaos A Alexandrou Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. NIKOLAOS A ALEXANDROU MD (NPI 1902944226) is an individual emergency medicine provider in Brooklyn, New York, licensed in New York (200110) and active in the NPI registry since February 2007. He is enrolled in Medicare PECOS, is affiliated with Brooklyn Hospital Center - Downtown Campus, and is a graduate of Other (1986).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 3
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Nikolaos A Alexandrou Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
3Medicare enrollment records show Nikolaos Alexandrou reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Brooklyn, NY 11212
- Reassigned Medicare billing, New York enrollment
- 782 clinicians in this Medicare group
Long Island City, NY 11102
- Reassigned Medicare billing, New York enrollment
- 69 clinicians in this Medicare group
Syracuse, NY 13203
- Reassigned Medicare billing, New York enrollment
- Medicare enrollment name: Emergency Care Services Of New York PC
- 240 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Brooklyn Hospital Center - Downtown Campus
Acute Care Hospitals · Brooklyn, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 11212 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BROOKLYN, NY 11212
BROOKLYN, NY 11212
BROOKLYN, NY 11212
BROOKLYN, NY 11212
BROOKLYN, NY 11212
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 Nikolaos Alexandrou's NPI number?
The NPI number for Nikolaos Alexandrou is 1902944226. It was assigned to this individual provider in the NPPES registry on February 1, 2007.
Where is Nikolaos Alexandrou located?
Nikolaos Alexandrou practices at 1 Brookdale Plz, Brooklyn, NY 11212. The listed phone number is (718) 240-5180.
What is Nikolaos Alexandrou's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Nikolaos Alexandrou enrolled in Medicare?
Yes. Nikolaos Alexandrou is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Nikolaos Alexandrou's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Nikolaos Alexandrou reassigns Medicare benefits to 3 organizations: Brookdale Hospital Medical Center (Brooklyn, NY), The Mount Sinai Hospital (Long Island City, NY) and Emergency Care Services Of New York, P.C. (Syracuse, NY). Each 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 Nikolaos Alexandrou's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Nikolaos Alexandrou affiliated with any hospitals?
According to CMS data, Nikolaos Alexandrou is affiliated with Brooklyn Hospital Center - Downtown Campus.
When was this NPI record last updated?
The NPPES record for Nikolaos Alexandrou was last updated on November 13, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.
# Dr. Nikolaos A Alexandrou, MD · NPI 1902944226
Emergency Medicine physician in Brooklyn, New York. Individual provider, active in the CMS NPPES registry since February 1, 2007.
## Identity
- **NPI:** 1902944226 (Entity type: Individual)
- **Enumerated:** February 1, 2007
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 200110 (New York)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 1 BROOKDALE PLZ, Brooklyn, NY 11212-3139
- **Phone:** (718) 240-5180
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Brookdale Hospital Medical Center (NPI 1720028772, Brooklyn, NY); The Mount Sinai Hospital (NPI 1013948595, Long Island City, NY); Emergency Care Services Of New York, P.C. (NPI 1639236656, Syracuse, NY) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1986
## Record status
- **NPPES last updated:** November 13, 2008
- **Other identifiers:** Medicare UPIN G-67521 (NY); Medicare ID-Type Unspecified 793961; Medicaid 01818217 (NY)
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Source: [NPI Profile](https://npiprofile.com/npi/1902944226) · Data from the CMS NPPES public registry.