LESLIANNE BARABASH MSN, RN, FNP-C
NPI 1851821177
Nurse Practitioner - Family in Amity Harbor, NY
About Leslianne Barabash Msn, Rn, Fnp-c NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
LESLIANNE BARABASH MSN, RN, FNP-C (NPI 1851821177) is an individual family provider in Amity Harbor, New York, licensed in New York (341875) and active in the NPI registry since June 2017. She is enrolled in Medicare PECOS and is a graduate of Other (2017).
NPPES Registry Identity
Specialties & Licenses 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Leslianne Barabash Msn, Rn, Fnp-c is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Leslianne Barabash reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Jericho, NY 11753
- Reassigned Medicare billing, New York enrollment
- 413 clinicians in this Medicare group
Mount Kisco, NY 10549
- Reassigned Medicare billing, New York enrollment
- Medicare enrollment name: Optum Medical Care PC
- 1,601 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.
Areas of Expertise CMS Part B claims 8
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 11701 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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 Leslianne Barabash's NPI number?
The NPI number for Leslianne Barabash is 1851821177. It was assigned to this individual provider in the NPPES registry on June 19, 2017.
Where is Leslianne Barabash located?
Leslianne Barabash practices at 3 Felix Pl, Amity Harbor, NY 11701. The listed phone number is (917) 371-2543.
What is Leslianne Barabash's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Leslianne Barabash enrolled in Medicare?
Yes. Leslianne Barabash is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Leslianne Barabash's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Leslianne Barabash reassigns Medicare benefits to 2 organizations: Optum Urgent Care, PLLC (Jericho, NY) and Optum Medical Care, P.C. (Mount Kisco, NY). 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 Leslianne Barabash'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 Leslianne Barabash was last updated on August 5, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.