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Provider Profile

Sean Terwilliger

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At a glance

About Sean Terwilliger

Listed in the NPI registry as an addiction & substance abuse counselor, Sean Terwilliger practices in Grover Beach, CA. NPI 1700713641 identifies this record in the national registry.

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

Credentials & Licensing

NPINational Provider Identifier
1700713641Issued 2026

As reported to the NPI registry ↗

Common questions

What is Sean Terwilliger's specialty?

Sean Terwilliger is an addiction & substance abuse counselor in Grover Beach, CA. That is the designation recorded for this NPI in the federal registry.

NPI registry

Where can I find Sean Terwilliger?

Sean Terwilliger is listed at 1523 Longbranch Ave, Grover Beach, CA 93433. Addresses come from the NPI registry and can lag a move, so confirm before travelling.

NPI registry

How do I contact Sean Terwilliger?

The number on file is (805) 473-7006. Contact the office directly to confirm availability and scheduling.

NPI registry

What is the NPI for Sean Terwilliger?

Sean Terwilliger's National Provider Identifier is 1700713641. 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 Sean Terwilliger's profile verified?

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

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