Physician Profile

Margaret M. Sierantowicz, MD

Unclaimed Profile

About Dr. Sierantowicz

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Specialty

Pediatrics (Primary)

Credentials & Licensing

IL license036076209
NPI1275638215
NPI issued09/14/2006

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.

Common questions

What does Dr. Sierantowicz specialize in?

Dr. Sierantowicz is a pediatrician in South Barrington, IL. That is the designation recorded for this NPI in the federal registry, where it is listed as “Pediatrics”.

NPI registry

Where is Dr. Sierantowicz located?

Dr. Sierantowicz is listed at 8 Executive CT Suite 1, South Barrington, IL 60010. Addresses come from the NPI registry and can lag a move, so confirm before travelling.

NPI registry

What is Dr. Sierantowicz's phone number?

The number on file is (847) 620-7969. Guide.md cannot book appointments or pass on messages — please call the office directly.

NPI registry

What is the NPI for Dr. Sierantowicz?

Dr. Sierantowicz's National Provider Identifier is 1275638215. 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 much experience does Dr. Sierantowicz have?

Dr. Sierantowicz has 20+ years experience. Registered with an NPI since 2006. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.

NPI registry

Is Dr. Sierantowicz's profile verified?

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