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Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum Organization subpart

David B. Okun M.D. Inc.

Hematology & Oncology Physician in Laguna Hills, CA · enumerated 2009 · authorized official Emina Weaver, Business Manager.

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

National Provider Identifier

1902135940

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Registry record

Entity type Organization (Type 2)
Legal business name David B. Okun M.D. Inc.
Other name <Unavail>
Parent organization David B. Okun M.D, Inc.
Practice address 24953 Paseo De Valencia, #25 B, Laguna Hills, CA, 92653
Phone (949) 770-8168
Fax (949) 770-2991
Enumeration date Dec 22, 2009
Last updated in NPPES Jan 11, 2010

Taxonomy & classification

207RH0003X Hematology & Oncology Physician Allopathic & Osteopathic Physicians · License G29859 (CA) Primary

Authorized official

Name Emina Weaver
Title Business Manager
Phone (949) 770-8168

Other identifiers

Identifier Type State Issuer
00G298590 Medicaid CA -

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 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 David B. Okun M.D. Inc.?
David B. Okun M.D. Inc. is registered in NPPES as a Hematology & Oncology Physician (its primary provider taxonomy).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-01-11.