Newly Listed Provider — this NPI profile has been added to the NPI registry within the last 90 days.

NICKOLAS MASSAR
NPI 1417878737
Nurse Practitioner - Acute Care in New York, NY

Q: 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.

Q: What is Nickolas Massar's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Acute Care, with taxonomy code 363LA2100X.

Q: 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 20 days 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.

Active since July 22, 2026PECOS Enrolled

550 1ST AVE, NEW YORK, NY 10016(929) 455-8216 Get Directions Write a Review

NPPES record added: August 21, 2026. Verified against the NPPES registry weekly; last sync: September 06, 2026.

Record update history: Aug 21, 2026, Aug 12, 2026, Jul 22, 2026 (3 updates tracked since 2026).

On this page

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.

NPPES Registry Identity

NPI1417878737

Entity TypeIndividualMale

Primary Taxonomy363LA2100X

Provider Legal NameNICKOLAS MASSAR

Location Address550 1ST AVENew York, NY 10016-6402

Mailing Address550 1st AveNew York, NY 10016-6402 · (929) 455-8216

Phone(929) 455-8216

Sole ProprietorNo

Enumeration DateJuly 22, 2026

Last NPPES UpdateAugust 21, 20263 updates tracked since enumeration

NPPES CertifiedAugust 21, 2026

✔ NPI 1417878737 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · Acute CarePhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363LA2100X

License✔ Licensed in NY · 433698

550 1ST AVE, New York, NY 10016

Open in Google Maps ↗

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Nickolas Massar is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

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.

New Patient

$102.04 typical visit price

range $65.69 – $198.19

Typical copayment $25.51 (range $16.42 – $49.54)

Most-billed visit code 99203

Established Patient

$114.88 typical visit price

range $21.20 – $160.66

Typical copayment $28.72 (range $5.30 – $40.16)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

DR. SHARON URALIL D.O.

Internal Medicine

550 1ST AVE
NEW YORK, NY 10016

New York County (212) 263-3293

DR. DIANA TREVAS FLEISHER

Emergency Medicine (Pediatric Emergency Medicine)

550 1ST AVE
NEW YORK, NY 10016

New York County (212) 263-3293

DR. MONICA GUPTA M.D.

Allergy & Immunology

550 1ST AVE, NBV 16N30, INTERNAL MEDICINE RESIDENCY PROGRAM
NEW YORK, NY 10016

New York County (212) 263-6397

CHRISTINE CHAN M.D.

Student in an Organized Health Care Education/Training Program

550 1ST AVE
NEW YORK, NY 10016

New York County (212) 263-5506

DR. MATTHEW CHIARELLO MD

Radiology (Vascular & Interventional Radiology)

550 1ST AVE
NEW YORK, NY 10016

New York County (212) 263-5506

DR. MEGAN ELIZABETH JENKINS M.D.

Surgery

550 1ST AVE
NEW YORK, NY 10016

New York County (212) 263-7300

DR. MANAN PATEL M.D.

Student in an Organized Health Care Education/Training Program

550 1ST AVE
NEW YORK, NY 10016

New York County (212) 263-5506

VICKY CHIANG

Student in an Organized Health Care Education/Training Program

550 1ST AVE
NEW YORK, NY 10016

New York County (212) 263-5506

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.

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 20 days 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.