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RIVERHEAD SURGERY, PC
NPI 1023574589
Clinic/Center in East Setauket, NY

Active since February 20, 2019
4 TECHNOLOGY DRIVE, SUITE 220, EAST SETAUKET, NY 11733(631) 476-9296(631) 476-9298 Get Directions Write a Review

NPPES record last updated: October 10, 2019. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Oct 10, 2019, Feb 20, 2019 (2 updates tracked since 2019).

About Riverhead Surgery, Pc NPPES

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

RIVERHEAD SURGERY, PC (NPI 1023574589) is a healthcare organization registered as a clinic/center in East Setauket, New York and active in the NPI registry since February 2019. The organization maintains a secondary practice location in Riverhead and lists Hesham Mahmoud Atwa, Owner, as its authorized official.

NPPES Registry Identity

NPI1023574589
Entity TypeOrganization
Primary Taxonomy261Q00000X
Legal Business NameRIVERHEAD SURGERY, PC
Location Address4 TECHNOLOGY DRIVE, SUITE 220East Setauket, NY 11733-4085
Mailing Address4 Technology Drive, Suite 220East Setauket, NY 11733-4085 · (631) 476-9296 · Fax (631) 476-9298
Phone(631) 476-9296
Fax(631) 476-9298
Organization SubpartNo
Authorized OfficialHesham Mahmoud AtwaOwner · (631) 476-9296
Enumeration DateFebruary 20, 2019
Last NPPES UpdateOctober 10, 20192 updates tracked since enumeration
✔ NPI 1023574589 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyClinic/CenterAmbulatory Health Care Facilities
Taxonomy Code261Q00000X
Definition
A facility or distinct part of one used for the diagnosis and treatment of outpatients. Clinic/Center is irregularly defined, sometimes being limited to organizations serving specialized treatment requirements or distinct patient/client groups (e.g., radiology, poor, and public health).
Also ListedSurgeryTaxonomy 208600000X
4 TECHNOLOGY DRIVE, East Setauket, NY 11733
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Secondary Practice Location 1

Location 1715 Roanoke AveRiverhead, NY 11901-2769 · Phone (631) 476-9296 · Fax (631) 476-9298

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Riverhead Surgery, Pc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

2

Medicare enrollment records show 2 clinicians reassign Medicare billing to Riverhead Surgery, PC, which bills Medicare for the services they deliver. Of these, 1 practice within 10 miles. They are listed nearest first.

Clinicians, nearest first (2)

Nicholas Craig, M.D.
General Surgery
NPI 1962445320
41 N COUNTRY RD
Port Jefferson, NY 11777
(631) 928-8300
✔ PECOS✔ Accepts Medicare3.2 mi
James Groff, D.O.
General Surgery
NPI 1598050155
2454 MAIN STREET
Bridgehampton, NY 11932
(631) 919-5205
✔ PECOS41 mi

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 Riverhead Surgery, PC's NPI number?

The NPI number for Riverhead Surgery, PC is 1023574589. It was assigned to this organization in the NPPES registry on February 20, 2019.

Where is Riverhead Surgery, PC located?

Riverhead Surgery, PC is located at 4 Technology Drive Suite 220, East Setauket, NY 11733. The listed phone number is (631) 476-9296.

What is Riverhead Surgery, PC's specialty?

The primary specialty registered for this NPI is Clinic/Center with taxonomy code 261Q00000X.

Is Riverhead Surgery, PC enrolled in Medicare?

Yes. Riverhead Surgery, PC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Riverhead Surgery, PC?

According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians, all in General Surgery, reassign their Medicare billing to Riverhead Surgery, PC. A 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 the clinician's services. Of these, 1 practice within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Riverhead Surgery, PC was last updated on October 10, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.