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

Gregory Kozeny, MD

Individual provider Nephrology Physician · NPI 1861499550

Gregory Kozeny, MD is a Nephrology Physician in Winfield, Illinois. Licensed in Illinois. Registered with an NPI since 2005.

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

25 N Winfield Rd Ste 414
Winfield, IL 60190-1379
Phone: (630) 690-1220
Fax: (630) 690-5323
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Nephrology Physician (primary) Taxonomy 207RN0300X · Licence 036059588 (IL)

Record details

NPI number1861499550
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 7, 2005
Last updated in NPPESOctober 30, 2020
Certification dateOctober 30, 2020
Mailing address120 W 22nd St Ste 200, Oak Brook, IL 60523-1563

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