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

Colleen M Grandowski, ACNP

Individual provider Acute Care Nurse Practitioner · NPI 1265768352

Colleen M Grandowski, ACNP is a Nurse Practitioner in Mokena, Illinois. Graduated from Loyola University of Chicago, Stritch School of Medicine in 2009, 17 years ago. Practices with Mount Sinai Community Foundation, a 246-clinician group and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
17
Trained at
Loyola University of Chicago, Stritch School of Medicine
Licensed in
IL
In the registry since
2009
Specialties on file
2
What do these letters mean?
ACNP — Acute Care Nurse Practitioner
A nurse practitioner who treats acutely ill patients, usually in hospital.

See every abbreviation used in this directory →

Practice location Address checks out

21202 Owens Rd Ste 101
Mokena, IL 60448-2001
Phone: (779) 334-0030
Fax: (779) 334-0031
Show map & directions

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

Specialties & licences

Nurse Practitioner (primary) Taxonomy 363L00000X · Licence 277000793 (IL)
Acute Care Nurse Practitioner Taxonomy 363LA2100X · Licence 209007785 (IL)

Record details

NPI number1265768352
Entity typeIndividual (Type 1)
GenderFemale
Credentials ACNP
Sole proprietorNo
NPI enumeratedOctober 23, 2009
Last updated in NPPESJanuary 17, 2022
Certification dateDecember 8, 2021

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolLOYOLA UNIVERSITY OF CHICAGO, STRITCH SCHOOL OF MEDICINE
Graduated 2009 (17 years in practice)
Group practice Mount Sinai Community Foundation — 246 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 on file with Medicare

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