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Provider Profile

Mark Workman, CADC-II

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At a glance

About Mark Workman

Mark Workman, CADC-II is an addiction & substance abuse counselor based in Oak View, CA. The provider's National Provider Identifier (NPI) is 1407709454.

Factual summary compiled by Guide.md from public records; not written by this provider.

Specialty

Addiction & Substance Abuse Counselor (Primary)

Credentials & Licensing

CA licenceAs reported to the NPI registry
No. A053681218As reported
NPINational Provider Identifier
1407709454Issued 2026

As reported to the NPI registry ↗

Common questions

What kind of doctor is Mark Workman?

Mark Workman is an addiction & substance abuse counselor in Oak View, CA. That is the designation recorded for this NPI in the federal registry.

NPI registry

What is Mark Workman's address?

Mark Workman is listed at 158 Rockaway Rd, Oak View, CA 93022. Addresses come from the NPI registry and can lag a move, so confirm before travelling.

NPI registry

How can I make an appointment with Mark Workman?

The number on file is (805) 273-8798. Contact the office directly to confirm availability and scheduling.

NPI registry

What is Mark Workman's NPI number?

Mark Workman's National Provider Identifier is 1407709454. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.

NPI registry

Has Mark Workman confirmed this information?

Not yet. This profile is built from public federal data and has not been confirmed by Mark Workman. If this is you, claiming it is free.

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