Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Orange Coast Oncology Hematology Medical Associates

Specialist in Newport Beach, CA · enumerated 2006 · authorized official Jill Chiascione, Business Office Manager.

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

National Provider Identifier

1598829574

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Registry record

Entity type Organization (Type 2)

Legal business name Orange Coast Oncology Hematology Medical Associates

Practice address 520 Superior Ave, Suite 300, Newport Beach, CA, 92663

Phone (949) 646-6441

Fax (949) 646-5719

Enumeration date Dec 21, 2006

Last updated in NPPES May 2, 2013

Taxonomy & classification

174400000X Specialist Other Service Providers Primary

Authorized official

Name Jill Chiascione

Title Business Office Manager

Phone (949) 474-5721

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 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.

What type of organization is Orange Coast Oncology Hematology Medical Associates?

Orange Coast Oncology Hematology Medical Associates is registered in NPPES as a Specialist (its primary provider taxonomy).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-05-02.