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Physician Profile

Mark D. Nathan, MD

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At a glance

About Dr. Nathan

Based in Walnut Creek, CA, Mark D. Nathan, MD is listed in the NPI registry under interventional cardiology. NPI 1013947670 identifies this record in the national registry.

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

Specialty

Credentials & Licensing

CA · Physician and Surgeon GMedical Board of California
No. 35395DelinquentExpired Nov 30, 2023Since 1977
NPINational Provider Identifier
1013947670Issued 2006

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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 Dr. Nathan?

Dr. Nathan is an interventional cardiologist in Walnut Creek, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Interventional Cardiology”.

NPI registry

What is Dr. Nathan's address?

Dr. Nathan is listed at 106 la Casa Via #140, Walnut Creek, CA 94598. Addresses come from the NPI registry and can lag a move, so confirm before travelling.

NPI registry

How can I make an appointment with Dr. Nathan?

The number on file is (925) 274-2860. Contact the office directly to confirm availability and scheduling.

NPI registry

What is Dr. Nathan's NPI number?

Dr. Nathan's National Provider Identifier is 1013947670. 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. Nathan been practicing?

Dr. Nathan 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 Dr. Nathan confirmed this information?

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

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