Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Nicholas Allen Gregory, MD

Allergy & Immunology Physician in Providence, RI · enumerated 2020.

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

National Provider Identifier

1740803550

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Nicholas Allen Gregory

Credential MD

Sex Male

Practice address 593 Eddy St, Providence, RI, 02903

Phone (401) 444-2737

Fax (401) 649-4248

Enumeration date May 27, 2020

Last updated in NPPES Jun 21, 2024

Taxonomy & licenses

207K00000X Allergy & Immunology Physician Allopathic & Osteopathic Physicians · License LP06219 (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

How do I verify Nicholas Gregory's NPI record?

Cross-check NPI 1740803550 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1740803550 active?

Yes, as of the latest NPPES snapshot, NPI 1740803550 is active (record last updated 2024-06-21).

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-06-21.