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About GRABAU

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Areas of Expertise

Common questions

Where is Dr. Grabau located?

Dr. Grabau is listed at 18111 BROOKHURST ST STE 4300, Fountain Valley, CA 92708. Addresses come from the NPI registry and can lag a move, so confirm before travelling.

NPI registry

What is Dr. Grabau's phone number?

The number on file is (714) 378-7650. Guide.md cannot book appointments or pass on messages — please call the office directly.

NPI registry

What is Dr. Grabau's NPI number?

Dr. Grabau's National Provider Identifier is 1093521346. 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

How long has Dr. Grabau been practising?

Dr. Grabau has 2+ years experience. Registered with an NPI since 2024. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practised for longer than this.

NPI registry

Has Dr. Grabau confirmed this information?

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

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Licensing & Certification

CA license719888
NPI1093521346
NPI issued12/10/2024

Source: NPPES NPI Registry

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Related providers

Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.

Other providers at this location 1

Same specialty, same street address — most likely the same department or group.

Also at this address 4

Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.

Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.