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

Individual provider Internal Medicine Physician · NPI 1598385627

Nicholas S Kowalczyk, MD is an Internal Medicine Physician in Chicago, Illinois. Licensed in Illinois. Registered with an NPI since 2020.

Licensed in
IL
In the registry since
2020
Specialties on file
3
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

5841 S Maryland Ave Ste MC7082
Chicago, IL 60637-1465
Phone: (773) 702-6840
Fax: (773) 702-2230
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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 036.163402 (IL)
Internal Medicine Physician Taxonomy 207R00000X · Licence 125.075939 (IL)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1598385627
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 18, 2020
Last updated in NPPESJune 12, 2023
Certification dateJune 12, 2023

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