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Central Occupational Medicine Providers - Ontario, A Medical Corporati

Occupational Medicine Clinic/Center in Ontario, CA · enumerated 2012 · authorized official Gregory Speer, Administrator.

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

National Provider Identifier

1669730321

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Registry record

Entity type Organization (Type 2)
Legal business name Central Occupational Medicine Providers - Ontario, A Medical Corporati
Other name <Unavail>
Practice address 59 S Milliken Ave, Suite 100, Ontario, CA, 91761
Phone (909) 605-8888
Fax (909) 605-8855
Enumeration date May 1, 2012
Last updated in NPPES Apr 14, 2015

Taxonomy & classification

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License A48324 (CA) Secondary
207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 20A5982 (CA) Secondary
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License A48512 (CA) Secondary
208D00000X General Practice Physician Allopathic & Osteopathic Physicians · License G72529 (CA) Secondary
208D00000X General Practice Physician Allopathic & Osteopathic Physicians · License G70519 (CA) Secondary
208D00000X General Practice Physician Allopathic & Osteopathic Physicians · License 20A9190 (CA) Secondary
261QX0100X Occupational Medicine Clinic/Center Ambulatory Health Care Facilities Primary

Authorized official

Name Gregory Speer
Title Administrator
Phone (951) 222-2206

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

Who is the authorized official for Central Occupational Medicine Providers - Ontario, A Medical Corporati?
NPPES lists Gregory Speer (Administrator) as the authorized official for this organization.
What is the NPI number for Central Occupational Medicine Providers - Ontario, A Medical Corporati?
The NPI for Central Occupational Medicine Providers - Ontario, A Medical Corporati is 1669730321, a Type 2 (organization) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-04-14.