Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Siamak Arassi, MD

Addiction Medicine (Internal Medicine) Physician in Brookfield, WI · enumerated 2006 · practices at Healing Corner, LLC.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1083680417

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Siamak Arassi

Credential MD

Sex Male

Practice address 19115 W Capitol Dr, 117, Brookfield, WI, 53045

Phone (262) 781-0240

Fax (262) 373-0148

Enumeration date Feb 26, 2006

Last updated in NPPES Aug 22, 2018

Taxonomy & licenses

207RA0401X Addiction Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License 41661-21 (WI) Primary

207QA0401X Addiction Medicine (Family Medicine) Physician Allopathic & Osteopathic Physicians · License 41661 (WI) Secondary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
32527500	Medicaid	WI	-
1083680417	Other	WI	BLUE SHIELD

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Siamak Arassi practice?

The practice location on file with NPPES is in Brookfield, WI. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Siamak Arassi?

The National Provider Identifier (NPI) for Siamak Arassi is 1083680417, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Healing Corner, LLC Primary Care Clinic/Center · Brookfield, WI NPI 1598086928 William Frazer-Collins Professional Counselor · Brookfield, WI NPI 1346514841 Sara Schmalz Professional Counselor · Brookfield, WI NPI 1457700478 Tracy Morgan Registered Nurse · Brookfield, WI NPI 1316552292

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-08-22.