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

Dr. John Oscar Kowalski, MD

Individual provider Pediatrics Physician · NPI 1396711875

Dr. John Oscar Kowalski, MD is a Pediatrics Physician in Oak Lawn, Illinois. Licensed in Illinois. Registered with an NPI since 2006.

Licensed in
IL
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

5669 W 95th St
Oak Lawn, IL 60453-6501
Phone: (708) 499-4400
Fax: (708) 499-4407
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Pediatrics Physician (primary) Taxonomy 208000000X · Licence 036-075588 (IL)

Record details

NPI number1396711875
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedFebruary 24, 2006
Last updated in NPPESFebruary 27, 2012

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