Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mark Nicholas O'Connor

Behavior Technician in Waimanalo, HI · enumerated 2020.

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

National Provider Identifier

1376145342

Verified

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Registry record

Entity type Individual (Type 1)

Name Mark Nicholas O'Connor

Sex Male

Practice address 41-611 Inoaole St. Waimanalo, Waimanalo, HI, 96795

Phone (808) 892-4059

Enumeration date Nov 13, 2020

Last updated in NPPES Nov 16, 2022

Taxonomy & licenses

106S00000X Behavior Technician Behavioral Health & Social Service Providers · License RBT-20-142664 (HI) Secondary

106S00000X Behavior Technician Behavioral Health & Social Service Providers 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

What is the NPI number for Mark O'Connor?

The National Provider Identifier (NPI) for Mark O'Connor is 1376145342, a Type 1 (individual) record in the CMS NPPES registry.

Where does Mark O'Connor practice?

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

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-11-16.