Physician Profile

Justin B. Castonguay, MD

Unclaimed Profile

About Dr. Castonguay

Justin B. Castonguay, MD is a healthcare provider in Peoria, IL specializing in anesthesiology. This provider record is associated with NPI 1558153312.

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

Specialty

Anesthesiology (Primary)

Credentials & Licensing

IL licenceAs reported to the NPI registry
No. 125.085734As reported
NPINational Provider Identifier
1558153312Issued 2025

As reported to the NPI registry ↗

Common questions

What does Dr. Castonguay specialize in?

Dr. Castonguay is an anesthesiologist in Peoria, IL. That is the designation recorded for this NPI in the federal registry, where it is listed as “Anesthesiology”.

NPI registry

Where is Dr. Castonguay located?

Dr. Castonguay is listed at 1 Illini Dr, Peoria, IL 61605. Addresses come from the NPI registry and can lag a move, so confirm before travelling.

NPI registry

What is Dr. Castonguay's phone number?

The number on file is (309) 655-6988. Contact the office directly to confirm availability and scheduling.

NPI registry

What is Dr. Castonguay's NPI number?

Dr. Castonguay's National Provider Identifier is 1558153312. 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. Castonguay been practicing?

Dr. Castonguay has 1+ years experience. Registered with an NPI since 2025. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.

NPI registry

Has Dr. Castonguay confirmed this information?

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

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