ZACHARY AARON WINTHROP MD
NPI 1760986327
Pediatrics - Pediatric Critical Care Medicine in Valhalla, NY
About Zachary Aaron Winthrop Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ZACHARY AARON WINTHROP MD (NPI 1760986327) is an individual pediatric critical care medicine provider in Valhalla, New York, licensed in New York (335677) and active in the NPI registry since March 2018. He is enrolled in Medicare PECOS and maintains a secondary practice location in Boston.
NPPES Registry Identity
Specialties & Licenses 3
Secondary Practice Location 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Zachary Aaron Winthrop Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Zachary Winthrop reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Hawthorne, NY 10532
- Reassigned Medicare billing, New York enrollment
- 511 clinicians in this Medicare group
Boston, MA 02115
- Reassigned Medicare billing, Massachusetts enrollment
- 1,358 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
VALHALLA, NY 10595
VALHALLA, NY 10595
VALHALLA, NY 10595
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 Zachary Winthrop's NPI number?
The NPI number for Zachary Winthrop is 1760986327. It was assigned to this individual provider in the NPPES registry on March 20, 2018.
Where is Zachary Winthrop located?
Zachary Winthrop practices at 100 Woods Rd, Valhalla, NY 10595. The listed phone number is (215) 380-0769.
What is Zachary Winthrop's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Critical Care Medicine, with taxonomy code 2080P0203X.
Is Zachary Winthrop enrolled in Medicare?
Yes. Zachary Winthrop is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Zachary Winthrop's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Zachary Winthrop reassigns Medicare benefits to 2 organizations: Boston Children's Health Physicians, LLP (Hawthorne, NY) and Children's Hospital Pediatric Associates, Inc (Boston, MA). 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 Zachary Winthrop'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 Zachary Winthrop was last updated on June 12, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.