NICKOLAS MASSAR
NPI 1417878737
Nurse Practitioner - Acute Care in New York, NY
About Nickolas Massar NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
NICKOLAS MASSAR (NPI 1417878737) is an individual acute care provider in New York, New York, licensed in New York (433698) and active in the NPI registry since July 2026. He is enrolled in Medicare PECOS and is a graduate of Other (2021).
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)
Nickolas Massar is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Nickolas Massar reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Boynton Beach, FL 33426
- Reassigned Medicare billing, New York enrollment
- 2,450 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 10016 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.
NEW YORK, NY 10016
NEW YORK, NY 10016
NEW YORK, NY 10016
NEW YORK, NY 10016
NEW YORK, NY 10016
NEW YORK, NY 10016
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 Nickolas Massar's NPI number?
The NPI number for Nickolas Massar is 1417878737. It was assigned to this individual provider in the NPPES registry on July 22, 2026.
Where is Nickolas Massar located?
Nickolas Massar practices at 550 1st Ave, New York, NY 10016. The listed phone number is (929) 455-8216.
What is Nickolas Massar's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Acute Care, with taxonomy code 363LA2100X.
Is Nickolas Massar enrolled in Medicare?
Yes. Nickolas Massar is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Nickolas Massar's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Nickolas Massar reassigns Medicare benefits to New York University (Boynton Beach, FL). 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 Nickolas Massar'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 Nickolas Massar was last updated on August 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Nickolas Massar · NPI 1417878737
Acute Care physician in New York, New York. Individual provider, active in the CMS NPPES registry since July 22, 2026.
## Identity
- **NPI:** 1417878737 (Entity type: Individual)
- **Enumerated:** July 22, 2026
- **Primary specialty:** Nurse Practitioner - Acute Care · taxonomy 363LA2100X
- **State license:** 433698 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 550 1ST AVE, New York, NY 10016-6402
- **Phone:** (929) 455-8216
## 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:** New York University (NPI 1285826438, Boynton Beach, FL), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2021
## Record status
- **NPPES last updated:** August 21, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1417878737) · Data from the CMS NPPES public registry.