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

Dr. Constance Agnes Pietrzak, MD

Individual provider Internal Medicine Physician · NPI 1174788343

Dr. Constance Agnes Pietrzak, MD is an Internal Medicine Physician in Hazel Crest, Illinois. Practices as a sole proprietor. Licensed in Illinois.

Licensed in
IL
In the registry since
2008
Specialties on file
2
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

17850 Kedzie Ave Ste 2100
Hazel Crest, IL 60429-2056
Phone: (708) 957-4011
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence 036126021 (IL)
Internal Medicine Physician Taxonomy 207R00000X · Licence 125053383 (IL)

Record details

NPI number1174788343
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedJuly 27, 2008
Last updated in NPPESDecember 17, 2021
Certification dateDecember 17, 2021

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