Provider Profile

Gregory R. Gustavson, APRN

Unclaimed Profile

About Gregory Gustavson

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Specialty

Vascular & Interventional Radiology (Primary)

Credentials & Licensing

CT license12.017664
NPI1770418030
NPI issued06/16/2026

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

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 Gregory R. Gustavson specialize in?

Gregory R. Gustavson is an interventional radiologist in Willimantic, CT. That is the designation recorded for this NPI in the federal registry, where it is listed as “Vascular & Interventional Radiology”.

NPI registry

Where is Gregory R. Gustavson located?

Gregory R. Gustavson is listed at 112 Mansfield Ave, Willimantic, CT 06226. Addresses come from the NPI registry and can lag a move, so confirm before travelling.

NPI registry

What is Gregory R. Gustavson's phone number?

The number on file is (860) 456-9116. Guide.md cannot book appointments or pass on messages — please call the office directly.

NPI registry

What is Gregory R. Gustavson's NPI number?

Gregory R. Gustavson's National Provider Identifier is 1770418030. 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

Has Gregory R. Gustavson confirmed this information?

Not yet. This profile is built from public federal data and has not been confirmed by Gregory R. Gustavson. 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.