Physician Profile

Mary Lynn O'Brien, M.D.

Unclaimed Profile

About Dr. O'brien

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Specialty

Pediatric Developmental Behavioral (Primary)

Credentials & Licensing

OR licenseMD09334
NPI1124115936
NPI issued10/05/2006

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 Mary Lynn O'Brien's specialty?

Mary Lynn O'Brien is a pediatric developmental behavioral in Portland, OR. That is the designation recorded for this NPI in the federal registry.

NPI registry

Where can I find Mary Lynn O'Brien?

Mary Lynn O'Brien is listed at 3600 N Interstate Ave, Portland, OR 97227. Addresses come from the NPI registry and can lag a move, so confirm before travelling.

NPI registry

How do I contact Mary Lynn O'Brien?

The number on file is (503) 813-2000. Guide.md cannot book appointments or pass on messages — please call the office directly.

NPI registry

What is Mary Lynn O'Brien's NPI number?

Mary Lynn O'Brien's National Provider Identifier is 1124115936. 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 Mary Lynn O'Brien been practicing?

Mary Lynn O'Brien has 20+ years experience. Registered with an NPI since 2006. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.

NPI registry

Has Mary Lynn O'Brien confirmed this information?

Not yet. This profile is built from public federal data and has not been confirmed by Mary Lynn O'Brien. 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.