Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Siamak Arassi, MD

Individual provider Addiction Medicine (Internal Medicine) Physician · NPI 1083680417

Siamak Arassi, MD is an Addiction Medicine (Internal Medicine) Physician in Brookfield, Wisconsin. Licensed in Wisconsin. Registered with an NPI since 2006.

Licensed in
WI
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

19115 W Capitol Dr 117
Brookfield, WI 53045
Phone: (262) 781-0240
Fax: (262) 373-0148
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Addiction Medicine (Internal Medicine) Physician (primary) Taxonomy 207RA0401X · Licence 41661-21 (WI)
Addiction Medicine (Family Medicine) Physician Taxonomy 207QA0401X · Licence 41661 (WI)

Record details

NPI number1083680417
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedFebruary 26, 2006
Last updated in NPPESAugust 22, 2018
Mailing address19115 W Capitol Dr, 117, Brookfield, WI 53045-2754