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William Rivera, M.D., Inc.

Specialist in Apple Valley, CA · enumerated 2008 · authorized official William Rivera Ortiz, President.

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

National Provider Identifier

1518145846

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Registry record

Entity type Organization (Type 2)
Legal business name William Rivera, M.D., Inc.
Practice address 18484 Us Highway 18, 225, Apple Valley, CA, 92307
Phone (760) 242-2342
Fax (760) 242-2869
Enumeration date Feb 8, 2008
Last updated in NPPES Feb 8, 2008

Taxonomy & classification

174400000X Specialist Other Service Providers · License A046115 (CA) Primary

Authorized official

Name William Rivera Ortiz
Title President
Phone (760) 242-2342

Other identifiers

Identifier Type State Issuer
00A461150 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 the NPI number for William Rivera, M.D., Inc.?
The NPI for William Rivera, M.D., Inc. is 1518145846, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for William Rivera, M.D., Inc.?
NPPES lists William Rivera Ortiz (President) as the authorized official for this organization.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-02-08.