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Riverhead Surgery, PC

Clinic/Center in East Setauket, NY · enumerated 2019 · authorized official Hesham Atwa, Owner.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1023574589

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Registry record

Entity type Organization (Type 2)
Legal business name Riverhead Surgery, PC
Practice address 4 Technology Drive, Suite 220, East Setauket, NY, 11733
Phone (631) 476-9296
Fax (631) 476-9298
Enumeration date Feb 20, 2019
Last updated in NPPES Oct 10, 2019

Taxonomy & classification

208600000X Surgery Physician Allopathic & Osteopathic Physicians Secondary
261Q00000X Clinic/Center Ambulatory Health Care Facilities Primary

Authorized official

Name Hesham Atwa
Title Owner
Phone (631) 476-9296

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

What type of organization is Riverhead Surgery, PC?
Riverhead Surgery, PC is registered in NPPES as a Clinic/Center (its primary provider taxonomy).
What is a Type 2 NPI?
A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-10-10.