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DR. GREGORY HARRISON NALESNIK DO
NPI 1659864189
Student in an Organized Health Care Education/Training Program in Neptune, NJ

Active since June 09, 2018PECOS Enrolled
1945 STATE ROUTE 33, NEPTUNE, NJ 07753(732) 776-4483(732) 776-4798 Get Directions Write a Review

NPPES record last updated: June 9, 2018. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Gregory Harrison Nalesnik Do NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. GREGORY HARRISON NALESNIK DO (NPI 1659864189) is an individual student in an organized health care education/training program in Neptune, New Jersey and active in the NPI registry since June 2018. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1659864189
Entity TypeIndividualMale
Primary Taxonomy390200000X
Provider Legal NameDR. GREGORY HARRISON NALESNIKCredential: DO
Location Address1945 STATE ROUTE 33Neptune, NJ 07753-4859
Mailing Address1945 State Route 33Neptune, NJ 07753-4859 · (732) 776-4483 · Fax (732) 776-4798
Phone(732) 776-4483
Fax(732) 776-4798
Sole ProprietorNo
Enumeration DateJune 9, 2018
✔ NPI 1659864189 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyStudent in an Organized Health Care Education/Training ProgramStudent, Health Care
Taxonomy Code390200000X
Definition
An individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care.
1945 STATE ROUTE 33, Neptune, NJ 07753
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Gregory Harrison Nalesnik Do 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.

Medicare Billing Reassignment

Medicare enrollment records show Gregory Nalesnik reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Memorial Pediatric Group
39 mi
Pediatrics
1275 YORK AVE
New York, NY 10021
  • Reassigned Medicare billing, New York enrollment
  • 220 clinicians in this Medicare group
NPI 1750352381 (646) 227-3813

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 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MAULIK D SHAH DO
Internal Medicine (Gastroenterology)
1945 STATE ROUTE 33
NEPTUNE, NJ 07753
Monmouth County (732) 897-2770
HANI NASER
Internal Medicine
1945 STATE ROUTE 33
NEPTUNE, NJ 07753
Monmouth County (732) 776-4483
KALIOPI MELLO
Student in an Organized Health Care Education/Training Program
1945 STATE ROUTE 33
NEPTUNE, NJ 07753
Monmouth County (732) 897-2455
DR. EMILY NICOLE RIENZO MD
Student in an Organized Health Care Education/Training Program
1945 STATE ROUTE 33
NEPTUNE, NJ 07753
Monmouth County (732) 776-4328
CHRISTINE BARONE D.O
Pediatrics (Neonatal-Perinatal Medicine)
1945 STATE ROUTE 33
NEPTUNE, NJ 07753
Monmouth County (732) 776-4283
NIYOUSHA SADEGHPOUR MD
Student in an Organized Health Care Education/Training Program
1945 STATE ROUTE 33
NEPTUNE, NJ 07753
Monmouth County (732) 897-2455
JUSTIN VAN NEST PA-C
Physician Assistant
1945 STATE ROUTE 33
NEPTUNE, NJ 07753
Monmouth County (732) 776-2330
ZAINAB SHAHSAMAND MD
Student in an Organized Health Care Education/Training Program
1945 STATE ROUTE 33
NEPTUNE, NJ 07753
Monmouth County (732) 776-3712

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 Gregory Nalesnik's NPI number?

The NPI number for Gregory Nalesnik is 1659864189. It was assigned to this individual provider in the NPPES registry on June 9, 2018.

Where is Gregory Nalesnik located?

Gregory Nalesnik practices at 1945 State Route 33, Neptune, NJ 07753. The listed phone number is (732) 776-4483.

What is Gregory Nalesnik's specialty?

The primary specialty registered for this NPI is Student in an Organized Health Care Education/Training Program with taxonomy code 390200000X.

Is Gregory Nalesnik enrolled in Medicare?

Yes. Gregory Nalesnik is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Gregory Nalesnik's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Gregory Nalesnik reassigns Medicare benefits to Memorial Pediatric Group (New York, 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 Gregory Nalesnik'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 Gregory Nalesnik was last updated on June 9, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.