Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

John J O'Hara, M.D., Inc

Q: What is the NPI number for John J O'Hara, M.D., Inc?

The NPI for John J O'Hara, M.D., Inc is 1457547978, a Type 2 (organization) record in the CMS NPPES registry.

Orthopaedic Surgery Physician in Torrance, CA · enumerated 2007 · authorized official John O'Hara, President.

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

National Provider Identifier

1457547978

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Registry record

Entity type Organization (Type 2)

Legal business name John J O'Hara, M.D., Inc

Practice address 23456 Hawthorne Blvd, #300, Torrance, CA, 90505

Phone (310) 316-6190

Enumeration date Sep 18, 2007

Last updated in NPPES Sep 18, 2007

Taxonomy & classification

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License A20291 (CA) Primary

Authorized official

Name John O'Hara

Title President

Phone (310) 316-6190

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.

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Frequently asked questions

What is the NPI number for John J O'Hara, M.D., Inc?

The NPI for John J O'Hara, M.D., Inc is 1457547978, a Type 2 (organization) record in the CMS NPPES registry.

Who is the authorized official for John J O'Hara, M.D., Inc?

NPPES lists John O'Hara (President) as the authorized official for this organization.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-09-18.