Provider Profile

Marissa O'Callaghan, MB BCH BAO

Unclaimed Profile

About Marissa O'callaghan

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Specialty

Internal Medicine (Primary)

Credentials & Licensing

AZ licenseR75994
NPI1043743875
NPI issued04/08/2017

License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.

Common questions

What is Marissa O'Callaghan's specialty?

Marissa O'Callaghan is an internist in Scottsdale, AZ. That is the designation recorded for this NPI in the federal registry, where it is listed as “Internal Medicine”.

NPI registry

Where can I find Marissa O'Callaghan?

Marissa O'Callaghan is listed at 13400 E Shea Blvd, Scottsdale, AZ 85259. Addresses come from the NPI registry and can lag a move, so confirm before travelling.

NPI registry

How do I contact Marissa O'Callaghan?

The number on file is (480) 498-0980. Guide.md cannot book appointments or pass on messages — please call the office directly.

NPI registry

What is the NPI for Marissa O'Callaghan?

Marissa O'Callaghan's National Provider Identifier is 1043743875. 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 much experience does Marissa O'Callaghan have?

Marissa O'Callaghan has 9+ years experience. Registered with an NPI since 2017. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.

NPI registry

Is Marissa O'Callaghan's profile verified?

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

Guide.md

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