DR. ALEX CHEN MD
NPI 1255337283
Specialist in Brooklyn, NY
About Dr. Alex Chen Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ALEX CHEN MD (NPI 1255337283) is an individual specialist in Brooklyn, New York, licensed in New York (218248) and active in the NPI registry since June 2005. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Alex Chen Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Alex Chen reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Brooklyn, NY 11219
- Reassigned Medicare billing, New York enrollment
- 1,177 clinicians in this Medicare group
Brooklyn, NY 11220
- Reassigned Medicare billing, New York enrollment
- 76 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.
Other Providers at the Same Location NPPES 13
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Alex Chen's NPI number?
The NPI number for Alex Chen is 1255337283. It was assigned to this individual provider in the NPPES registry on June 23, 2005.
Where is Alex Chen located?
Alex Chen practices at 967 48th St, Brooklyn, NY 11219. The listed phone number is (718) 283-3000.
What is Alex Chen's specialty?
The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.
Is Alex Chen enrolled in Medicare?
Yes. Alex Chen is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Alex Chen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alex Chen reassigns Medicare benefits to 2 organizations: Maimonides Faculty Practice Plan (Brooklyn, NY) and Mmc Ob-Gyn Faculty Practice Plan (Brooklyn, 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 Alex Chen'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 Alex Chen was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months 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.