Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Guy R Nicastri, MD

Surgery Physician in Warwick, RI · enumerated 2006.

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

National Provider Identifier

1801826326

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Registry record

Entity type Individual (Type 1)

Name Guy R Nicastri

Credential MD

Sex Male

Practice address 455 Toll Gate Rd, Dept of Surgical Services Kent, Warwick, RI, 02886

Phone (401) 737-7010

Enumeration date Jul 3, 2006

Last updated in NPPES Aug 13, 2025

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 58906 (MA) Secondary

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License MD12419 (RI) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Guy Nicastri?

Guy Nicastri is registered in NPPES with the primary taxonomy of Surgery Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Other providers at this practice address

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John Audett Internal Medicine Physician · Warwick, RI NPI 1609872878 Landy Paolella Vascular & Interventional Radiology Physician · Warwick, RI NPI 1427055987 Robert Binek Vascular & Interventional Radiology Physician · Warwick, RI NPI 1356348817 Kent County Memorial Hospital General Acute Care Hospital · Warwick, RI NPI 1386643294 Kent County Memorial Hospital Rehabilitation Hospital Unit · Warwick, RI NPI 1023017944 Gregory Young Emergency Medicine Physician · Warwick, RI NPI 1790774073 David Rowe Diagnostic Radiology Physician · Warwick, RI NPI 1043200504 Jeffrey Silverstein Diagnostic Radiology Physician · Warwick, RI NPI 1609866128

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-08-13.