MARY WOO M.D.
NPI 1447276191
Pediatrics in Peekskill, NY
About Mary Woo M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARY WOO M.D. (NPI 1447276191) is an individual pediatrics provider in Peekskill, New York, licensed in New York (225416) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Mary Woo M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Mary Woo reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Peekskill, NY 10566
- Reassigned Medicare billing, New York enrollment
- 683 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 10566 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.
PEEKSKILL, NY 10566
PEEKSKILL, NY 10566
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 Mary Woo's NPI number?
The NPI number for Mary Woo is 1447276191. It was assigned to this individual provider in the NPPES registry on July 14, 2006.
Where is Mary Woo located?
Mary Woo practices at 1037 Main St Hudson River Healthcare, Inc., Peekskill, NY 10566. The listed phone number is (914) 734-8800.
What is Mary Woo's specialty?
The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.
Is Mary Woo enrolled in Medicare?
Yes. Mary Woo is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Mary Woo's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mary Woo reassigns Medicare benefits to Sun River Health Inc. (Peekskill, 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 Mary Woo'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 Mary Woo was last updated on December 21, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.