Physician Profile

Frank C. Hsu, DO

Unclaimed Profile

About Dr. Hsu

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Specialty

Cardiovascular Disease (Primary)

Credentials & Licensing

CA license20A24648
NPI1104454362
NPI issued03/31/2020

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

Accepts Medicare assignmentSometimes (reported per claim)
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 is Dr. Hsu's specialty?

Dr. Hsu is a cardiologist in Santa Rosa, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Cardiovascular Disease”.

NPI registry

Where can I find Dr. Hsu?

Dr. Hsu is listed at 34 Mark West Springs Rd Fl 3, Santa Rosa, CA 95403. Addresses come from the NPI registry and can lag a move, so confirm before travelling.

NPI registry

How do I contact Dr. Hsu?

The number on file is (707) 573-5200. Guide.md cannot book appointments or pass on messages — please call the office directly.

NPI registry

What is Dr. Hsu's NPI number?

Dr. Hsu's National Provider Identifier is 1104454362. 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. Hsu been practicing?

Dr. Hsu has 6+ years experience. Registered with an NPI since 2020. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.

NPI registry

Has Dr. Hsu confirmed this information?

Not yet. This profile is built from public federal data and has not been confirmed by Dr. Hsu. 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.