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Physician Profile

Ryan C. Chang, MD

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At a glance

About Dr. Chang

Ryan C. Chang, MD practices critical care (intensivists) in San Francisco, CA. Ryan is a 1996 graduate of George Washington University School of Medicine. Ryan is also listed as specializing in critical care medicine. The provider's National Provider Identifier (NPI) is 1831277417.

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

Specialty

Credentials & Licensing

CA · Physician and Surgeon AMedical Board of California
No. 63692CurrentExpires Sep 2027Since 1997
NPINational Provider Identifier
1831277417Issued 2006

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Medicare information

Accepts Medicare assignmentYes
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. Chang?

Dr. Chang is a critical care (intensivists) in San Francisco, CA. That is the designation recorded for this NPI in the federal registry.

NPI registry

What is Dr. Chang's address?

Dr. Chang is listed at 2425 Geary Blvd Mezz Critical Care/Hbs, San Francisco, CA 94115. 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. Chang?

The number on file is (415) 833-2200. Contact the office directly to confirm availability and scheduling.

NPI registry

What is the NPI for Dr. Chang?

Dr. Chang's National Provider Identifier is 1831277417. 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

Where did Dr. Chang train?

Dr. Chang attended George Washington University School of Medicine, graduating in 1996. This comes from the CMS National Downloadable File.

CMS public data

How much experience does Dr. Chang have?

Dr. Chang has 30 years experience. Calculated from a graduation year of 1996, reported in the CMS National Downloadable File.

CMS public data

Is Dr. Chang's profile verified?

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

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