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

Tomasz A Kosierkiewicz X, MD

Individual provider Neurology Physician · NPI 1487645776

Tomasz A Kosierkiewicz X, MD is a Neurology in Mount Vernon, Illinois. Qualified in 1989, 37 years ago. Accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
37
Licensed in
IL
In the registry since
2005
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

2605 Main St
Mount Vernon, IL 62864-2372
Phone: (618) 242-7350
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Neurology Physician (primary) Taxonomy 2084N0400X · Licence 036104826 (IL)

Record details

NPI number1487645776
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 4, 2005
Last updated in NPPESFebruary 21, 2012
Mailing addressPo Box 2277, Mount Vernon, IL 62864-0044

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNEUROLOGY
Medical schoolOTHER
Graduated 1989 (37 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

Other providers in Mount Vernon