Provider Profile

Stephan Siwiec, PhD

Unclaimed Profile

About Dr. Siwiec

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Education & Training

Medical School Other Graduated: 2019

Specialty

Psychologist — Clinical (Primary)

Credentials & Licensing

WI license3987-57
NPI1487509972
NPI issued03/02/2026

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 does Dr. Siwiec specialize in?

Dr. Siwiec is a psychologist in Madison, WI. That is the designation recorded for this NPI in the federal registry, where it is listed as “Psychologist — Clinical”.

NPI registry

Where is Dr. Siwiec located?

Dr. Siwiec is listed at 6402 Odana Rd Ste 304, Madison, WI 53719. Addresses come from the NPI registry and can lag a move, so confirm before travelling.

NPI registry

What is Dr. Siwiec's phone number?

The number on file is (608) 465-4565. Guide.md cannot book appointments or pass on messages — please call the office directly.

NPI registry

What is Dr. Siwiec's NPI number?

Dr. Siwiec's National Provider Identifier is 1487509972. 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

Where did Dr. Siwiec go to medical school?

Dr. Siwiec attended Other, graduating in 2019. This comes from the CMS National Downloadable File.

CMS public data

How long has Dr. Siwiec been practicing?

Dr. Siwiec has 7 years experience. Calculated from a graduation year of 2019, reported in the CMS National Downloadable File.

CMS public data

Has Dr. Siwiec confirmed this information?

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