Physician Profile
Mary M. Westerholm, M.D. practices internal medicine in Winfield, IL. Mary is a 2004 graduate of Loyola University of Chicago, Stritch School of Medicine. Mary is also listed as specializing in pediatrics.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
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.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
25 N WINFIELD RD
Winfield, IL 60190
Mary M. Westerholm is an internist in Winfield, IL. That is the designation recorded for this NPI in the federal registry, where it is listed as “Internal Medicine”.
NPI registry
Mary M. Westerholm is listed at 25 N Winfield Rd, Winfield, IL 60190. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (630) 653-0848. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Mary M. Westerholm's National Provider Identifier is 1790951093. 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
Mary M. Westerholm attended Loyola University of Chicago, Stritch School of Medicine, graduating in 2004. This comes from the CMS National Downloadable File.
CMS public data
Mary M. Westerholm has 22 years experience. Calculated from a graduation year of 2004, reported in the CMS National Downloadable File.
CMS public data
Not yet. This profile is built from public federal data and has not been confirmed by Mary M. Westerholm. 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.