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Physician Profile

Lewis R. Greenstein, M.D.

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At a glance

About Dr. Greenstein

Lewis R. Greenstein, M.D. is a healthcare provider in Escondido, CA specializing in anesthesiology. This provider record is associated with NPI 1164419651.

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

Specialty

Anesthesiology (Primary)

Credentials & Licensing

CA · Physician and Surgeon GMedical Board of California
No. 23623DelinquentExpired Jun 30, 2025Since 1972
NPINational Provider Identifier
1164419651Issued 2005

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 Lewis R. Greenstein?

Lewis R. Greenstein is an anesthesiologist in Escondido, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Anesthesiology”.

NPI registry

What is Lewis R. Greenstein's address?

Lewis R. Greenstein is listed at 555 E Valley Pkwy Palomar Medical Center, Escondido, CA 92025. Addresses come from the NPI registry and can lag a move, so confirm before travelling.

NPI registry

How can I make an appointment with Lewis R. Greenstein?

The number on file is (760) 739-3000. Contact the office directly to confirm availability and scheduling.

NPI registry

What is the NPI for Lewis R. Greenstein?

Lewis R. Greenstein's National Provider Identifier is 1164419651. 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 Lewis R. Greenstein have?

Lewis R. Greenstein 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

Is Lewis R. Greenstein's profile verified?

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

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