ALEJANDRO BERENSTEIN MD
NPI 1790766848
Neurological Surgery in New York, NY
About Alejandro Berenstein Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ALEJANDRO BERENSTEIN MD (NPI 1790766848) is an individual neurological surgery provider in New York, New York, licensed in New York (130263-1) and active in the NPI registry since November 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)
Alejandro Berenstein Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Alejandro Berenstein reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
New York, NY 10029
- Reassigned Medicare billing, New York enrollment
- 79 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 10029 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 Alejandro Berenstein's NPI number?
The NPI number for Alejandro Berenstein is 1790766848. It was assigned to this individual provider in the NPPES registry on November 7, 2005.
Where is Alejandro Berenstein located?
Alejandro Berenstein practices at 1450 Madison Avenue #1136, New York, NY 10029. The listed phone number is (212) 241-1296.
What is Alejandro Berenstein's specialty?
The primary specialty registered for this NPI is Neurological Surgery with taxonomy code 207T00000X.
Is Alejandro Berenstein enrolled in Medicare?
Yes. Alejandro Berenstein is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Alejandro Berenstein's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alejandro Berenstein reassigns Medicare benefits to Icahn School Of Medicine At Mount Sinai (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 Alejandro Berenstein'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 Alejandro Berenstein was last updated on October 17, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.