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Physician Profile

John A. Guardiola, MD

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Where to find John A. Guardiola, MD

About Dr. Guardiola

The NPI registry lists John A. Guardiola, MD as a student in an organized health care education program, in Saint Louis, MO. NPI 1821931403 identifies this record in the national registry.

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

Credentials & Licensing

NPINational Provider Identifier
1821931403Issued 2026

As reported to the NPI registry ↗

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. Guardiola?

Dr. Guardiola is a medical trainee in Saint Louis, MO. That is the designation recorded for this NPI in the federal registry, where it is listed as “Student in an Organized Health Care Education Program”.

NPI registry

What is Dr. Guardiola's address?

Dr. Guardiola is listed at 12800 Corporate Hill Dr, Saint Louis, MO 63131. 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. Guardiola?

The number on file is (314) 617-3751. Contact the office directly to confirm availability and scheduling.

NPI registry

What is the NPI for Dr. Guardiola?

Dr. Guardiola's National Provider Identifier is 1821931403. 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

Is Dr. Guardiola's profile verified?

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

Guide.md

Guide.md listings do not constitute medical advice or an endorsement.