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Marissa D. Oneill, CAPDT

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About Marissa Oneill

Marissa D. Oneill, CAPDT is an addiction & substance abuse counselor practicing in San Francisco, CA. Marissa is also listed as specializing in mental health counselor. This provider record is associated with NPI 1649110255.

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

Specialty

Addiction & Substance Abuse Counselor (Primary)
Mental Health Counselor (Additional)

Credentials & Licensing

CA licenceAs reported to the NPI registry
No. 24546As reported
NPINational Provider Identifier
1649110255Issued 2026

As reported to the NPI registry ↗

Common questions

What does Marissa D. Oneill specialize in?

Marissa D. Oneill is an addiction & substance abuse counselor in San Francisco, CA. That is the designation recorded for this NPI in the federal registry.

NPI registry

Where is Marissa D. Oneill located?

Marissa D. Oneill is listed at 1724 Bryant St, San Francisco, CA 94110. Addresses come from the NPI registry and can lag a move, so confirm before travelling.

NPI registry

What is Marissa D. Oneill's phone number?

The number on file is (415) 558-9125. Contact the office directly to confirm availability and scheduling.

NPI registry

What is the NPI for Marissa D. Oneill?

Marissa D. Oneill's National Provider Identifier is 1649110255. 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

Is Marissa D. Oneill's profile verified?

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

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