Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. James C O'Connell, NP

Primary Care Nurse Practitioner in San Mateo, CA · enumerated 2006.

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

National Provider Identifier

1568541951

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Registry record

Entity type Individual (Type 1)

Name Mr. James C O'Connell

Credential NP

Sex Male

Practice address 225 37th Ave, San Mateo, CA, 94403

Phone (650) 573-2958

Enumeration date Nov 4, 2006

Last updated in NPPES Mar 23, 2022

Taxonomy & licenses

111N00000X Chiropractor Chiropractic Providers · License DC 27503 (CA) Secondary

363LP2300X Primary Care Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 95020240 (CA) Primary

NP · Nurse Practitioner: An advanced practice registered nurse with graduate training, licensed to diagnose and treat, often with prescriptive authority. About the NP 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

Where does James O'Connell practice?

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

What is the NPI number for James O'Connell?

The National Provider Identifier (NPI) for James O'Connell is 1568541951, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-03-23.