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Physician Profile

Alexander O. Sy, MD, MBA, MSL

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At a glance

About Dr. Sy

Based in Loma Linda, CA, Alexander O. Sy, MD, MBA, MSL is listed in the NPI registry under critical care medicine. Alexander is also listed as specializing in internal medicine, pulmonary disease, and sleep medicine. NPI 1144297748 identifies this record in the national registry.

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

Specialty

Pulmonary Disease (Additional)
Sleep Medicine (Additional)

Credentials & Licensing

CA · Physician and Surgeon CMedical Board of California
No. 177284CurrentExpires Mar 2028Since 2022
NPINational Provider Identifier
1144297748Issued 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 Dr. Sy?

Dr. Sy is a critical care physician in Loma Linda, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Critical Care Medicine”.

NPI registry

What is Dr. Sy's address?

Dr. Sy is listed at 11201 Benton St, Loma Linda, CA 92357. 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. Sy?

The number on file is (909) 825-7084. Contact the office directly to confirm availability and scheduling.

NPI registry

What is Dr. Sy's NPI number?

Dr. Sy's National Provider Identifier is 1144297748. 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. Sy been practicing?

Dr. Sy 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. Sy confirmed this information?

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

Guide.md

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