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Provider Profile

Robert Warren

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At a glance

About Robert Warren

Based in Washington, DC, Robert Warren is listed in the NPI registry under hematology & oncology. NPI 1568461598 identifies this record in the national registry.

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

Specialty

Credentials & Licensing

DC licenceAs reported to the NPI registry
No. 21025As reported
NPINational Provider Identifier
1568461598Issued 2005

As reported to the NPI registry ↗

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 Robert Warren?

Robert Warren is a cancer specialist in Washington, DC. That is the designation recorded for this NPI in the federal registry, where it is listed as “Hematology & Oncology”.

NPI registry

What is Robert Warren's address?

Robert Warren is listed at 3800 Reservoir Rd Nw, Washington, DC 20007. Addresses come from the NPI registry and can lag a move, so confirm before travelling.

NPI registry

How can I make an appointment with Robert Warren?

The number on file is (202) 444-2223. Contact the office directly to confirm availability and scheduling.

NPI registry

What is Robert Warren's NPI number?

Robert Warren's National Provider Identifier is 1568461598. 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 Robert Warren been practicing?

Robert Warren has 21+ years experience. Registered with an NPI since 2005. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.

NPI registry

Has Robert Warren confirmed this information?

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

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