NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Diekmann-Guiroy MD Inc

Surgery Physician in Salinas, CA · enumerated 2006 · authorized official Bernadette Diekmann-Guiroy, President of Corporation.

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

National Provider Identifier

1801980859

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Diekmann-Guiroy MD Inc
Practice address 236 San Jose St, Salinas, CA, 93901
Phone (831) 422-2666
Fax (831) 772-0892
Enumeration date Oct 3, 2006
Last updated in NPPES Feb 1, 2023

Taxonomy & classification

208600000X Surgery Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Bernadette Diekmann-Guiroy
Title President of Corporation
Phone (831) 422-2666

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 type of organization is Diekmann-Guiroy MD Inc?
Diekmann-Guiroy MD Inc is registered in NPPES as a Surgery Physician (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.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-02-01.