Physician Profile

Alison M. Ludwig, MD

Unclaimed Profile

About Dr. Ludwig

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Specialty

Internal Medicine (Primary)

Credentials & Licensing

CA licenseA94677
NPI1922203702
NPI issued06/20/2007

License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing 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 does Dr. Ludwig specialize in?

Dr. Ludwig is an internist in San Francisco, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Internal Medicine”.

NPI registry

Where is Dr. Ludwig located?

Dr. Ludwig is listed at 1306 Cole St, San Francisco, CA 94117. Addresses come from the NPI registry and can lag a move, so confirm before travelling.

NPI registry

What is Dr. Ludwig's phone number?

The number on file is (415) 566-8141. Guide.md cannot book appointments or pass on messages — please call the office directly.

NPI registry

What is Dr. Ludwig's NPI number?

Dr. Ludwig's National Provider Identifier is 1922203702. 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. Ludwig been practicing?

Dr. Ludwig has 19+ years experience. Registered with an NPI since 2007. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.

NPI registry

Has Dr. Ludwig confirmed this information?

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

Guide.md

Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.