Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Nicholas Diamantopoulos

Pharmacist in Laguna Niguel, CA · enumerated 2024 · practices at Salatini Eye Care, LLC.

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

National Provider Identifier

1164271375

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Registry record

Entity type Individual (Type 1)

Name Mr. Nicholas Diamantopoulos

Sex Male

Practice address 27881 La Paz Rd, Laguna Niguel, CA, 92677

Phone (949) 643-0740

Enumeration date May 18, 2024

Last updated in NPPES May 18, 2024

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License RPH40861 (CA) Primary

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

Where does Nicholas Diamantopoulos practice?

The practice location on file with NPPES is in Laguna Niguel, CA. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Nicholas Diamantopoulos?

The National Provider Identifier (NPI) for Nicholas Diamantopoulos is 1164271375, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Jana Smith Geriatric Physical Therapist · Laguna Niguel, CA NPI 1245346329 Milomir Milosevich Geriatric Physical Therapist · Laguna Niguel, CA NPI 1669509261 Salatini Eye Care, LLC Optometrist · Laguna Niguel, CA NPI 1578777041

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-05-18.