DR. ROBERT P WORONIECKI M.D.
NPI 1447248034
Pediatrics - Pediatric Nephrology in Stony Brook, NY
About Dr. Robert P Woroniecki M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ROBERT P WORONIECKI M.D. (NPI 1447248034) is an individual pediatric nephrology provider in Stony Brook, New York, licensed in New York (205912) and active in the NPI registry since October 2005. He 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)
Dr. Robert P Woroniecki M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Robert Woroniecki reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Stony Brook, NY 11794
- Reassigned Medicare billing, New York enrollment
- 191 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
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
STONY BROOK, NY 11794
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 Robert Woroniecki's NPI number?
The NPI number for Robert Woroniecki is 1447248034. It was assigned to this individual provider in the NPPES registry on October 8, 2005.
Where is Robert Woroniecki located?
Robert Woroniecki practices at 100 Nicolls Rd # Level11, Stony Brook, NY 11794. The listed phone number is (631) 444-7884.
What is Robert Woroniecki's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Nephrology, with taxonomy code 2080P0210X.
Is Robert Woroniecki enrolled in Medicare?
Yes. Robert Woroniecki is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Robert Woroniecki's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Robert Woroniecki reassigns Medicare benefits to Stony Brook Children's Service, University Faculty Practice Corporatio (Stony Brook, 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 Robert Woroniecki'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 Robert Woroniecki was last updated on July 5, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.