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Physician Profile

Walter R. O'Brien, M.D.

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At a glance

About Dr. O'brien

Walter R. O'Brien, M.D. practices family medicine — sports medicine in Los Angeles, CA. The provider's National Provider Identifier (NPI) is 1346290814.

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

Credentials & Licensing

CA · Physician and Surgeon GMedical Board of California
No. 63193CurrentExpires Sep 2027Since 1988
CA licenceAs reported to the NPI registry
No. G063193As reported
NPINational Provider Identifier
1346290814Issued 2006

Snapshot · verify with the board ↗

Medicare information

Medicare opt-outNo
Can order and refer in MedicareYes

Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.

Common questions

What kind of doctor is Walter R. O'Brien?

Walter R. O'Brien is a family doctor in Los Angeles, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Family Medicine — Sports Medicine”.

NPI registry

What is Walter R. O'Brien's address?

Walter R. O'Brien is listed at 11600 Wilshire Blvd Suite 522, Los Angeles, CA 90025. Addresses come from the NPI registry and can lag a move, so confirm before travelling.

NPI registry

How can I make an appointment with Walter R. O'Brien?

The number on file is (310) 477-7276. Contact the office directly to confirm availability and scheduling.

NPI registry

What is Walter R. O'Brien's NPI number?

Walter R. O'Brien's National Provider Identifier is 1346290814. 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 Walter R. O'Brien been practicing?

Walter R. 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 Walter R. O'Brien confirmed this information?

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

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