DR. DAVID ALEJANDRO SANCHEZ MD
NPI 1407346745
Internal Medicine - Allergy & Immunology in Brooklyn, NY
About Dr. David Alejandro Sanchez Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. DAVID ALEJANDRO SANCHEZ MD (NPI 1407346745) is an individual allergy & immunology provider in Brooklyn, New York, licensed in New York (309905) and active in the NPI registry since May 2018. He is enrolled in Medicare PECOS and is a graduate of Other (2018).
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. David Alejandro Sanchez Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show David Sanchez reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
New York, NY 10003
- Reassigned Medicare billing, New York enrollment
- 10 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 11209 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.
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 David Sanchez's NPI number?
The NPI number for David Sanchez is 1407346745. It was assigned to this individual provider in the NPPES registry on May 11, 2018.
Where is David Sanchez located?
David Sanchez practices at 800 Poly Pl, Brooklyn, NY 11209. The listed phone number is (718) 836-6600.
What is David Sanchez's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Allergy & Immunology, with taxonomy code 207RA0201X.
Is David Sanchez enrolled in Medicare?
Yes. David Sanchez is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for David Sanchez's services?
According to the CMS Revalidation Reassignment List (October 2026 release), David Sanchez reassigns Medicare benefits to Monarch Allergy Medical Services Of New York PC (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 David Sanchez'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 David Sanchez was last updated on June 11, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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. David Alejandro Sanchez, MD · NPI 1407346745
Allergy & Immunology physician in Brooklyn, New York. Individual provider, active in the CMS NPPES registry since May 11, 2018.
## Identity
- **NPI:** 1407346745 (Entity type: Individual)
- **Enumerated:** May 11, 2018
- **Primary specialty:** Internal Medicine - Allergy & Immunology · taxonomy 207RA0201X
- **State license:** 309905 (New York)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 800 POLY PL, Brooklyn, NY 11209-7104
- **Phone:** (718) 836-6600
## 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:** Monarch Allergy Medical Services Of New York PC (NPI 1457052847, New York, NY), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2018
## Record status
- **NPPES last updated:** June 11, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1407346745) · Data from the CMS NPPES public registry.