ALEKSANDR GLEYZER MD
NPI 1417949165
Emergency Medicine in Brooklyn, NY
About Aleksandr Gleyzer Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ALEKSANDR GLEYZER MD (NPI 1417949165) is an individual emergency medicine provider in Brooklyn, New York, licensed in New York (214448-1) and active in the NPI registry since August 2005. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
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 (PECOS)
Aleksandr Gleyzer Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
3Medicare enrollment records show Aleksandr Gleyzer reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Brooklyn, NY 11203
- Reassigned Medicare billing, New York enrollment
- Medicare enrollment name: State Of New York Comptrollers Office
- 67 clinicians in this Medicare group
Brooklyn, NY 11203
- Reassigned Medicare billing, New York enrollment
- 63 clinicians in this Medicare group
Jericho, NY 11753
- Reassigned Medicare billing, New York enrollment
- 413 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 11203 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 11203
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 Aleksandr Gleyzer's NPI number?
The NPI number for Aleksandr Gleyzer is 1417949165. It was assigned to this individual provider in the NPPES registry on August 18, 2005.
Where is Aleksandr Gleyzer located?
Aleksandr Gleyzer practices at 445 Lenox Rd, Brooklyn, NY 11203. The listed phone number is (718) 245-4790.
What is Aleksandr Gleyzer's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Aleksandr Gleyzer enrolled in Medicare?
Yes. Aleksandr Gleyzer is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Aleksandr Gleyzer's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Aleksandr Gleyzer reassigns Medicare benefits to 3 organizations: Suny Health Science Center At Bklyn (Brooklyn, NY), University Hospital Of Brooklyn Suny Downstate Health Sciences Univers (Brooklyn, NY) and Optum Urgent Care, PLLC (Jericho, 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 Aleksandr Gleyzer'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 Aleksandr Gleyzer was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.
# Aleksandr Gleyzer, MD · NPI 1417949165
Emergency Medicine physician in Brooklyn, New York. Individual provider, active in the CMS NPPES registry since August 18, 2005.
## Identity
- **NPI:** 1417949165 (Entity type: Individual)
- **Enumerated:** August 18, 2005
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 214448-1 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 445 LENOX RD, Brooklyn, NY 11203-2017
- **Phone:** (718) 245-4790
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **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): Suny Health Science Center At Bklyn (NPI 1588077994, Brooklyn, NY); University Hospital Of Brooklyn Suny Downstate Health Sciences Univers (NPI 1740853340, Brooklyn, NY); Optum Urgent Care, PLLC (NPI 1285975797, Jericho, NY) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** July 8, 2007
- **Other identifiers:** Medicare UPIN H49894 (NY); Medicare ID-Type Unspecified 68Q511 (NY); Medicaid 02182098 (NY)
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Source: [NPI Profile](https://npiprofile.com/npi/1417949165) · Data from the CMS NPPES public registry.