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BRIAN J KOSIAK MD
NPI 1336150259
Internal Medicine in Eau Claire, WI

Active since August 10, 2006
2809 E HAMILTON AVE # 107, EAU CLAIRE, WI 54701(715) 834-1555(715) 835-2063 Get Directions Write a Review

NPPES record last updated: March 8, 2011. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Brian J Kosiak Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

BRIAN J KOSIAK MD (NPI 1336150259) is an individual internal medicine provider in Eau Claire, Wisconsin, licensed in Minnesota (36333) and active in the NPI registry since August 2006.

NPPES Registry Identity

NPI1336150259
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameBRIAN J KOSIAKCredential: MD
Location Address2809 E HAMILTON AVE # 107Eau Claire, WI 54701-6863
Mailing Address2809 E Hamilton Ave # 107Eau Claire, WI 54701-6863 · (715) 834-1555 · Fax (715) 835-2063
Phone(715) 834-1555
Fax(715) 835-2063
Sole ProprietorNo
Enumeration DateAugust 10, 2006
Last NPPES UpdateMarch 8, 2011
✔ NPI 1336150259 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Licenses✔ Licensed in MN · 36333✔ Licensed in WI · 46560-20✔ Licensed in CO · 27582
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
2809 E HAMILTON AVE # 107, Eau Claire, WI 54701
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Other Identifiers 1

Medicare UPINF45636

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ROBERT JOHN JOHNSON M.D.
Family Medicine
2809 E HAMILTON AVE # 107
EAU CLAIRE, WI 54701
Eau Claire County (715) 834-1555

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Brian Kosiak's NPI number?

The NPI number for Brian Kosiak is 1336150259. It was assigned to this individual provider in the NPPES registry on August 10, 2006.

Where is Brian Kosiak located?

Brian Kosiak practices at 2809 E Hamilton Ave # 107, Eau Claire, WI 54701. The listed phone number is (715) 834-1555.

What is Brian Kosiak's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

When was this NPI record last updated?

The NPPES record for Brian Kosiak was last updated on March 8, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.