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Physician Profile

Kathryn J. Hallsten, M.D.

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At a glance

About Dr. Hallsten

Kathryn J. Hallsten, M.D. is a healthcare provider in Portola Valley, CA specializing in internal medicine. This provider record is associated with NPI 1184750861.

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

Specialty

Internal Medicine (Primary)

Credentials & Licensing

CA · Physician and Surgeon GMedical Board of California
No. 60511CurrentExpires May 2027Since 1987
NPINational Provider Identifier
1184750861Issued 2007

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 Kathryn J. Hallsten?

Kathryn J. Hallsten is an internist in Portola Valley, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Internal Medicine”.

NPI registry

What is Kathryn J. Hallsten's address?

Kathryn J. Hallsten is listed at 130 Portola Rd Suite C, Portola Valley, CA 94028. Addresses come from the NPI registry and can lag a move, so confirm before travelling.

NPI registry

How can I make an appointment with Kathryn J. Hallsten?

The number on file is (650) 385-1970. Contact the office directly to confirm availability and scheduling.

NPI registry

What is the NPI for Kathryn J. Hallsten?

Kathryn J. Hallsten's National Provider Identifier is 1184750861. 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 Kathryn J. Hallsten have?

Kathryn J. Hallsten has 19+ years experience. Registered with an NPI since 2007. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.

NPI registry

Is Kathryn J. Hallsten's profile verified?

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

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