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Carl A. Constantine, M.D., A Professional Corporation

Internal Medicine Physician in Ojai, CA · enumerated 2006 · authorized official Carl Constantine, Owner.

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

National Provider Identifier

1639283252

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Registry record

Entity type Organization (Type 2)
Legal business name Carl A. Constantine, M.D., A Professional Corporation
Practice address 1306 Maricopa Hwy, Ojai, CA, 93023
Phone (805) 646-1401
Enumeration date Aug 19, 2006
Last updated in NPPES Jul 21, 2022

Taxonomy & classification

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Carl Constantine
Title Owner
Phone (805) 218-1906

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 Carl A. Constantine, M.D., A Professional Corporation?
The NPI for Carl A. Constantine, M.D., A Professional Corporation is 1639283252, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Carl A. Constantine, M.D., A Professional Corporation?
NPPES lists Carl Constantine (Owner) as the authorized official for this organization.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-07-21.